Method and device for preventing bone cement leakage, electronic equipment and storage medium

Abstract

The invention relates to a method and device for preventing bone cement leakage, electronic equipment and a storage medium, and the method comprises the steps: determining a first operation method according with the illness state information of a current patient and a first material parameter of a postoperative bone from a historical case, and the first operation method comprises a first operation parameter; based on the first operation method, the first material parameters and a preoperative three-dimensional model of a fractured vertebral body of the current patient, simulating the diffusion condition after bone cement is injected into the body according to the first operation method, and obtaining a first prediction form representing the diffusion condition of the bone cement; using an evaluation model to evaluate the first operation method based on the first prediction form to obtain a reference evaluation score; on the basis of the benchmark evaluation score, the first operation parameter is adjusted with the purpose of improving the evaluation score, and the target operation method is obtained. By means of the method, the bone cement leakage risk can be reduced, and bone cement leakage is effectively prevented.

Description

Technical Field

[0001] The present disclosure relates to the field of data processing, and in particular to a method and device for preventing bone cement leakage, an electronic device and a storage medium. Background Art

[0002] With the continuous advancement of medical technology, surgery to treat vertebral fractures is increasingly being performed in clinical practice. This surgery is to inject bone cement into the fractured vertebra to strengthen the vertebral body, thereby relieving the patient's pain and improving their quality of life.

[0003] However, this surgery may be accompanied by a series of complications related to bone cement injection, one of the most common complications being bone cement leakage. Bone cement injection relies on the doctor's experience and feel, and lacks precise control and monitoring methods. Since bone cement has a certain fluidity and injection pressure, it can easily leak out through fracture cracks on the vertebral body, bone destruction defects, or puncture channels. This leakage will not only cause mechanical compression and thermal damage to surrounding tissues, but may also cause a series of serious complications, such as nerve root injury, spinal cord compression, and pulmonary embolism. Bone cement leakage will not only cause physical damage to patients, but also affect their emotions, so the probability of bone cement leakage should be reduced as much as possible. Summary of the invention

[0004] In view of this, the present disclosure proposes a solution to prevent bone cement leakage.

[0005] According to one aspect of the present disclosure, a method for preventing bone cement leakage is provided, comprising: determining a first surgical method that matches the current patient's medical condition information and a first material parameter of the postoperative bone from historical cases, the first surgical method comprising a first surgical parameter; simulating the diffusion of bone cement injected into the body according to the first surgical method based on the first surgical method, the first material parameter, and a preoperative three-dimensional model of the fractured vertebra of the current patient, to obtain a first predicted morphology that characterizes the diffusion of bone cement; using an evaluation model to evaluate the first surgical method based on the first predicted morphology to obtain a benchmark evaluation score; and adjusting the first surgical parameter based on the benchmark evaluation score to obtain a target surgical method for the purpose of improving the evaluation score.

[0006] In a possible implementation, the first surgical parameter is adjusted based on the benchmark evaluation score for the purpose of improving the evaluation score to obtain a target surgical method, including: obtaining a plurality of candidate surgical methods based on different first surgical parameters; simulating the diffusion of bone cement after injection into the body according to each candidate surgical method based on each candidate surgical method, and correspondingly obtaining a plurality of second predicted forms characterizing the diffusion of bone cement; using the evaluation model to correspondingly evaluate each candidate surgical method based on each second predicted form to obtain a scoring result for each candidate surgical method; and taking the candidate surgical method corresponding to the scoring result with the highest value that is higher than the benchmark evaluation score as the target surgical method.

[0007] In one possible implementation, the current patient's condition information includes: a first preoperative image, and the method also includes: determining the first coordinates of each of the four articular processes closest to the fracture location in the direction of spinal arrangement in the first preoperative image; determining a dividing line based on each of the first coordinates; using the dividing line to cut out the fractured vertebral image from the first preoperative image; and using the fractured vertebral image to perform modeling to obtain the preoperative three-dimensional model.

[0008] In one possible implementation, a single historical case includes: a second surgical method, a second preoperative image, and a second postoperative image of a single historical patient, and the method further includes: based on the second postoperative image of each historical patient, correspondingly determining the second actual form of bone cement after surgery for each historical patient; based on the second surgical method, the second preoperative image, and the second actual form corresponding to each historical patient, determining the second material parameters of the postoperative bone of each historical patient, and updating each second material parameter to the corresponding historical case.

[0009] In one possible implementation, the method also includes: determining a first actual form of the postoperative bone cement of the current patient based on the postoperative images of the current patient; simulating the diffusion of the bone cement after it is injected into the body according to the target surgical method based on the target surgical method, the first material parameters, and the preoperative three-dimensional model, to obtain a third predicted form characterizing the diffusion of the bone cement; determining the difference between the first actual form and the third predicted form; based on the difference, calibrating the first material parameters to obtain calibrated material parameters; establishing a historical case of the current patient, and storing the calibrated material parameters and the target surgical method in the historical case.

[0010] In a possible implementation, the method also includes: constructing a mechanical analysis model based on the postoperative three-dimensional model of the fractured vertebra of the current patient; using the mechanical analysis model, based on the first actual form, simulating the stress of the fractured vertebra after surgery under various working conditions, and obtaining the stress, strain, and bone cement distribution of the fractured vertebra after surgery under each working condition as a reference for postoperative recovery.

[0011] In a possible implementation, a single historical case includes: the second condition information, the second surgical method, and the second material parameters of the postoperative bone of a single historical patient, and the condition information of the current patient includes: the first basic information and the first condition description of the current patient, and determining the first surgical method and the first material parameters of the postoperative bone that match the condition information of the current patient includes: from each of the historical cases, determining a historical case corresponding to at least one second condition information that is most similar to the first basic information and the first condition description of the current patient as a candidate case; and obtaining the first surgical method and the first material parameters based on the second surgical method and the second material parameters in the candidate case.

[0012] According to another aspect of the present disclosure, a device for preventing bone cement leakage is provided, the device comprising:

[0013] A first surgical method and material parameter determination unit, used to determine a first surgical method and a first material parameter of a postoperative bone that match the condition information of a current patient from historical cases, wherein the first surgical method includes first surgical parameters;

[0014] A first predicted shape determination unit is used to simulate the diffusion of bone cement after it is injected into the body according to the first surgical method based on the first surgical method, the first material parameter, and the preoperative three-dimensional model of the fractured vertebra of the current patient, so as to obtain a first predicted shape characterizing the diffusion of the bone cement;

[0015] a benchmark evaluation score determination unit, configured to evaluate the first surgical method based on the first predicted morphology using an evaluation model to obtain a benchmark evaluation score;

[0016] The target surgical method determination unit is used to adjust the first surgical parameter based on the benchmark evaluation score and to obtain the target surgical method with the purpose of improving the evaluation score.

[0017] In a possible implementation, the target surgical method determination unit is further configured to:

[0018] Based on different first surgical parameters, a plurality of candidate surgical methods are obtained;

[0019] Based on each of the candidate surgical methods, the first material parameter, and the preoperative three-dimensional model, simulating the diffusion of bone cement after it is injected into the body according to each of the candidate surgical methods, and correspondingly obtaining a plurality of second predicted forms characterizing the diffusion of bone cement;

[0020] Using the evaluation model, based on each of the second predicted forms, correspondingly evaluating each of the candidate surgical methods to obtain a scoring result for each of the candidate surgical methods;

[0021] The candidate surgical method corresponding to the scoring result with the highest value and higher than the benchmark evaluation score is used as the target surgical method.

[0022] In a possible implementation, the current patient's condition information includes: a first preoperative image, and the device further includes:

[0023] A first coordinate determination unit is used to determine the first coordinates of each of the four articular processes closest to the fracture position in the spine arrangement direction in the first preoperative image;

[0024] A dividing line determining unit, configured to determine a dividing line based on each of the first coordinates;

[0025] a fractured vertebral image determining unit, configured to segment the fractured vertebral image from the first preoperative image using the segmentation line;

[0026] The preoperative three-dimensional model determination unit is used to perform modeling using the fractured vertebral image to obtain the preoperative three-dimensional model.

[0027] In a possible implementation, the single historical case includes: a second surgical method, a second preoperative image, and a second postoperative image of a single historical patient, and the device further includes:

[0028] A second actual shape determining unit, configured to correspondingly determine a second actual shape of the bone cement after surgery of each of the historical patients based on a second postoperative image of each of the historical patients;

[0029] The second material parameter determination unit is used to determine the second material parameters of the postoperative bones of each historical patient based on the second surgical method, second preoperative image, and second actual morphology corresponding to each historical patient, and update each second material parameter to the corresponding historical case.

[0030] In a possible implementation manner, the device further includes:

[0031] A first actual shape determining unit, used to determine a first actual shape of the postoperative bone cement of the current patient according to the postoperative image of the current patient;

[0032] A third predicted morphology determination unit is configured to simulate, based on the target surgical method, the first material parameter, and the preoperative three-dimensional model, the diffusion of bone cement after the bone cement is injected into the body according to the target surgical method, so as to obtain a third predicted morphology representing the diffusion of the bone cement;

[0033] a difference determination unit, configured to determine a difference between the first actual form and the third predicted form;

[0034] A first material parameter calibration unit, configured to calibrate the first material parameter based on the difference to obtain a calibrated material parameter;

[0035] The current patient material parameter and surgical method storage unit is used to establish the historical case of the current patient and store the calibrated material parameters and the target surgical method in the historical case.

[0036] In a possible implementation manner, the device further includes:

[0037] A mechanical analysis model building unit, used to build a mechanical analysis model based on a postoperative three-dimensional model of a fractured vertebra of a current patient;

[0038] The working condition simulation unit is used to use the mechanical analysis model to simulate the stress of the fractured vertebrae after surgery under various working conditions based on the first actual form, and obtain the stress, strain and bone cement distribution of the fractured vertebrae after surgery under various working conditions as a reference for postoperative recovery.

[0039] In a possible implementation, a single historical case includes: second condition information, a second surgical method, and a second material parameter of a postoperative bone of a single historical patient, and the condition information of the current patient includes: first basic information and a first condition description of the current patient, and the first surgical method and material parameter determination unit are further used to:

[0040] From the historical cases, determine a historical case corresponding to at least one second condition information that is most similar to the first basic information and the first condition description of the current patient as a candidate case;

[0041] The first surgical method and the first material parameter are obtained based on the second surgical method and the second material parameter in the candidate case.

[0042] According to another aspect of the present disclosure, an electronic device is provided, comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to implement the above method when executing the instructions stored in the memory.

[0043] According to another aspect of the present disclosure, a non-volatile computer-readable storage medium is provided, on which computer program instructions are stored, wherein the computer program instructions implement the above method when executed by a processor.

[0044] According to another aspect of the present disclosure, a computer program product is provided, including a computer-readable code, or a non-volatile computer-readable storage medium carrying the computer-readable code. When the computer-readable code runs in a processor of an electronic device, the processor in the electronic device executes the above method.

[0045] The present disclosure combines prior experience to determine the first surgical method and the first material parameter that are consistent with the current patient's condition information from historical cases. Since the first surgical method and the first material parameter have been used by patients with similar conditions to the current patient, although they are not necessarily the most suitable for the current patient, they are more reference-oriented than the surgical method and material parameters subjectively estimated by the doctor. Then, the first predicted morphology of bone cement diffusion after the bone cement characterized by the first material parameter is injected using the first surgical method is simulated before surgery. In addition, the first predicted morphology is scored using the evaluation model to obtain a benchmark evaluation score; the benchmark evaluation score is used as a baseline, and the first surgical parameter is adjusted to improve the evaluation score of the adjusted surgical plan for the purpose of improving the evaluation score. Therefore, the target surgical method is more suitable for the first material parameter and the current patient's condition (bone, condition) than the first surgical method. In this way, the target surgical method and the target material parameter determined by the method of the embodiment of the present disclosure can meet the requirements of matching the surgical method, material parameter, and the patient's own condition as much as possible, reduce the risk of bone cement leakage, and effectively prevent bone cement leakage.

[0046] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

[0048] Figure 1 A schematic flow chart of a method for preventing bone cement leakage provided in an embodiment of the present disclosure.

[0049] Figure 2 A schematic diagram of the structure of a device for preventing bone cement leakage provided in an embodiment of the present disclosure.

[0050] Figure 3 A schematic diagram of the structure of an electronic device for preventing bone cement leakage provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0051] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0052] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0053] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present disclosure.

[0054] Surgery to treat vertebral fractures is increasingly being performed clinically. This surgery involves injecting bone cement into the fractured vertebra to strengthen the vertebra, thereby relieving the patient's pain and improving their quality of life.

[0055] However, this surgery may be accompanied by a series of complications related to bone cement injection, one of the most common complications is bone cement leakage. The surgical method is not suitable for the patient's own conditions, or the composition of bone cement is not suitable for the patient's own conditions, or the surgical method and bone cement composition cannot match each other, or the surgical method, bone cement composition, and patient's own conditions cannot match each other, which may lead to bone cement leakage and cause pain to the patient.

[0056] Figure 1 The flowchart of the method for preventing bone cement leakage provided by the embodiment of the present disclosure is as follows. Figure 1 As shown, the method includes:

[0057] S11, determining a first surgical method and first material parameters of the postoperative bone that are consistent with the current patient's condition information from historical cases, wherein the first surgical method includes first surgical parameters.

[0058] The first surgical method may be a surgical method used to treat a fractured vertebra in a case where a patient has a spinal fracture in a historical case. The surgical method includes surgical parameters. The first surgical method may include first surgical parameters. The first surgical parameters include: an injection angle of bone cement, an injection point position, an injection volume, an injection speed, an injection method, etc.

[0059] After the operation, the bone is injected with bone cement. Thus, the postoperative bone includes the bone body and bone cement. The first material parameter may include: a parameter characterizing the bone properties of the fractured vertebra, for example, the density of the cortical bone, the porosity of the cancellous bone, the viscosity coefficient, etc. The first material parameter may include: a parameter characterizing the properties of the bone cement injected into the body, for example, the density and viscosity of the bone cement, etc.

[0060] The medical condition information can be a patient portrait of the current patient. The medical condition information may include: basic information of the current patient, description of the medical condition, etc. Among them, the basic information may include: name, gender, age, duration of illness, etc.; the medical condition description may include: text records of fracture type, fracture location, bone parameters, etc., preoperative images, etc.

[0061] The historical case may be a case of a patient including the current patient. The historical case may be data saved before the first surgical method is determined. The historical case may include basic information, condition description, bone cement parameters, etc. of other patients, and may include basic information of the current patient, description of the condition of the current patient before this treatment, bone cement parameters used before this treatment, etc. In one example, the historical case may include: second condition information of the historical patient, a second surgical method, second material parameters of the postoperative bone, a second preoperative image, and a second postoperative image.

[0062] Thus, based on the condition information of the current patient, the first surgical method and the first material parameter that match the condition information of the current patient can be determined from historical cases.

[0063] S12, based on the first surgical method, the first material parameter, and the preoperative three-dimensional model of the fractured vertebra of the current patient, simulate the diffusion of bone cement after it is injected into the body according to the first surgical method to obtain a first predicted morphology that characterizes the diffusion of bone cement.

[0064] After bone cement is injected into the bone, it spreads and forms a mass. Some feature points can be specified on the edge of the mass, or feature points whose pixel values ​​differ from those of the surrounding pixels by more than a pixel difference threshold can be identified from the image of the mass. The diffusion morphology of bone cement can include the distance vectors from these feature points to the injection point. The diffusion morphology of bone cement can include the shape of the mass.

[0065] For ease of description, the diffusion morphology of bone cement can be predicted based on the first surgical method, the first material parameters, and the preoperative three-dimensional model of the fractured vertebra before the current patient undergoes surgery, and is named the first predicted morphology. The first predicted morphology can characterize the inferred diffusion condition after the bone cement configured according to the first surgical parameters is injected into the fractured vertebra using the first surgical method.

[0066] S13, using an evaluation model to evaluate the first surgical method based on the first predicted morphology to obtain a benchmark evaluation score.

[0067] In the disclosed embodiment, an evaluation model may be pre-set. The evaluation model may be an artificial intelligence model, for example, the evaluation model may be a deep learning model. The evaluation model may evaluate the surgical method according to the diffusion morphology of the bone cement. The evaluation result may be represented by a score.

[0068] In the disclosed embodiment, the evaluation model can be used to evaluate the first surgical method based on the first predicted morphology to obtain an evaluation score. For ease of description, the evaluation score of the first surgical method is named the benchmark evaluation score. The benchmark evaluation score is negatively correlated with the risk of bone cement leakage. The benchmark evaluation score can reflect the degree of match between the surgical method, the composition of the bone cement, and the patient's own condition, and the benchmark evaluation score is positively correlated with the degree of match.

[0069] S14, based on the benchmark evaluation score and with the purpose of improving the evaluation score, adjusting the first surgical parameter to obtain a target surgical method.

[0070] The first surgical method may include a first surgical parameter. Thus, a variety of new surgical methods derived from the first surgical method can be obtained by changing the first surgical parameter. In the disclosed embodiment, the benchmark evaluation score can be used as the lowest baseline, and the first surgical parameter can be automatically or manually adjusted for the purpose of improving the evaluation score to obtain a target surgical method that achieves the purpose. The target surgical method is more in line with the current patient's condition. Moreover, the target surgical method has a higher evaluation score, so the target surgical method is more compatible with the first material parameter and the patient's own condition, reducing the risk of bone cement leakage.

[0071] The present disclosure combines prior experience to determine the first surgical method and the first material parameter that are consistent with the current patient's condition information from historical cases. Since the first surgical method and the first material parameter have been used by patients with similar conditions to the current patient, although they are not necessarily the most suitable for the current patient, they are more reference-oriented than the surgical method and material parameters subjectively estimated by the doctor. Then, the first predicted morphology of bone cement diffusion after the bone cement characterized by the first material parameter is injected using the first surgical method is simulated before surgery. In addition, the first predicted morphology is scored using the evaluation model to obtain a benchmark evaluation score; the benchmark evaluation score is used as a baseline, and the first surgical parameter is adjusted to improve the evaluation score of the adjusted surgical plan for the purpose of improving the evaluation score. Therefore, the target surgical method is more suitable for the first material parameter and the current patient's condition (bone, condition) than the first surgical method. In this way, the target surgical method and the target material parameter determined by the method of the embodiment of the present disclosure can meet the requirements of matching the surgical method, material parameter, and the patient's own condition as much as possible, reduce the risk of bone cement leakage, and effectively prevent bone cement leakage.

[0072] In a possible implementation, the first surgical parameter is adjusted based on the benchmark evaluation score for the purpose of improving the evaluation score to obtain a target surgical method, including: obtaining a plurality of candidate surgical methods based on different first surgical parameters; simulating the diffusion of bone cement after injection into the body according to each candidate surgical method based on each candidate surgical method, and correspondingly obtaining a plurality of second predicted forms characterizing the diffusion of bone cement; using the evaluation model to correspondingly evaluate each candidate surgical method based on each second predicted form to obtain a scoring result for each candidate surgical method; and selecting the candidate surgical method corresponding to the scoring result with the highest value and higher than the benchmark evaluation score as the target surgical method.

[0073] As mentioned above, the first surgical method includes a first surgical parameter. Thus, by adjusting the first surgical parameter, a plurality of different first surgical parameters can be obtained. The surgical method including the adjusted first surgical parameter can be used as a candidate surgical method. In this way, a plurality of candidate surgical methods can be obtained. In the disclosed embodiment, the second predicted morphology of bone cement diffusion after the bone cement characterized by the first material parameter is injected according to the candidate surgical method can be simulated respectively. The second predicted morphology can characterize the inferred diffusion after the bone cement configured according to the first surgical parameter is injected into the fractured vertebra using the candidate surgical method. Each candidate surgical method can correspond to a second predicted morphology. Each second predicted morphology is evaluated using the aforementioned evaluation model, and each candidate surgical method can correspond to a scoring result, which can characterize the degree of conformity of the candidate surgical method with the first material parameter and the current patient's condition. For example: the numerical value of the scoring result can be positively correlated with the degree of conformity.

[0074] If the score result is the highest and higher than the benchmark assessment score, it means that the candidate surgical method corresponding to the score result is not only more suitable for the current patient's condition and material parameters than the first surgical method, but also the surgical method that best matches the current patient's condition and material parameters among multiple candidate surgical methods. Therefore, this candidate surgical method can be used as the target surgical method to perform the bone cement injection surgery characterized by the first material parameters on the current patient. The target surgical method matches the current patient's own condition and the bone cement characterized by the first material parameters, reducing the risk of bone cement leakage.

[0075] In one possible implementation, the current patient's condition information includes: a first preoperative image, and the method also includes: determining the first coordinates of each of the four articular processes closest to the fracture location in the direction of spinal arrangement in the first preoperative image; determining a dividing line based on each of the first coordinates; using the dividing line to cut out the fractured vertebral image from the first preoperative image; and using the fractured vertebral image to perform modeling to obtain the preoperative three-dimensional model.

[0076] As mentioned above, the description of the condition may include the location of the fracture. The identifier of the vertebra where the fracture occurred may be recorded in the description of the condition. For example, if the fracture occurred in the second lumbar vertebra, the letter L may be used to represent the lumbar vertebra, and the Arabic numeral 2 may be used to represent the second lumbar vertebra. Thus, L2 may be recorded in the description of the condition.

[0077] Exemplarily, a segmentation model can be used to segment the superior articular process and inferior articular process of each vertebra based on the first preoperative image of the current patient, and record the vertebral identifiers corresponding to each superior articular process and each inferior articular process. The fracture location is obtained from the description of the condition, and according to the fracture location, the superior articular process and inferior articular process corresponding to the fractured vertebra, the upper vertebra adjacent to the fractured vertebra, and the lower vertebra are determined from the segmented superior articular processes and inferior articular processes. Then, the upper segmentation line can be determined based on the first coordinates of the superior articular process of the fractured vertebra and the first coordinates of the inferior articular process of the upper vertebra. The lower segmentation line can be determined based on the first coordinates of the inferior articular process of the fractured vertebra and the first coordinates of the superior articular process of the lower vertebra. The fractured vertebra image is cut out from the first preoperative image according to the upper segmentation line and the lower segmentation line.

[0078] For example: the coordinates of the geometric center of the superior articular process of the fractured vertebra can be used as the first coordinates of the superior articular process of the fractured vertebra, the coordinates of the geometric center of the inferior articular process of the upper vertebra can be used as the first coordinates of the inferior articular process of the upper vertebra, and the geometric center of the superior articular process of the lower vertebra can be used as the first coordinates of the superior articular process of the lower vertebra; then, based on the first coordinates of the superior articular process of the fractured vertebra and the first coordinates of the inferior articular process of the upper vertebra, a first connecting line is determined, and the perpendicular midline of the first connecting line is used as the upper dividing line; based on the first coordinates of the inferior articular process of the fractured vertebra and the first coordinates of the superior articular process of the lower vertebra, a second connecting line is determined, and the perpendicular midline of the second connecting line is used as the lower dividing line. The above is only an example, and the disclosed embodiments do not limit the method for determining the dividing line.

[0079] Exemplarily, the position of the fractured vertebra can be determined in the first preoperative image in response to a received fractured vertebra location instruction. The fractured vertebra location instruction can be issued by the doctor roughly framing the fractured vertebra on the image. In the upward direction adjacent to the position of the fractured vertebra, the superior articular process of the fractured vertebra and the inferior articular process of the upper vertebra are identified; in the downward direction adjacent to the position of the fractured vertebra, the inferior articular process of the fractured vertebra and the superior articular process of the lower vertebra are identified. The lower dividing line can be determined based on the inferior articular process of the fractured vertebra and the superior articular process of the lower vertebra. The fractured vertebra image is cut out from the first preoperative image based on the upper dividing line and the lower dividing line.

[0080] In an embodiment of the present disclosure, modeling software or a pre-trained model can be used to perform three-dimensional modeling based on the fractured vertebral image to obtain a preoperative three-dimensional model. The modeling process is not the focus of the present disclosure, and the present disclosure will not introduce it in detail. In addition, after three-dimensional modeling, the surface smoothness of the obtained three-dimensional model can be evaluated. When the smoothness is less than the smoothness threshold, the three-dimensional model is updated until the smoothness of each surface of the three-dimensional model is not less than the smoothness threshold, and the final three-dimensional model is used as the preoperative three-dimensional model. In this way, each surface of the preoperative three-dimensional model meets the preset requirements (not less than the smoothness threshold), thereby improving the accuracy of bone cement diffusion simulation.

[0081] In the related art, it is necessary to manually specify the segmentation line in order to accurately segment the fractured vertebra. However, the method of the disclosed embodiment can achieve full automatic segmentation of the fractured vertebra image, or only require manual provision of the approximate position of the fractured vertebra without the need for the precise position, and the segmentation of the fractured vertebra image can be completed, thereby reducing the manual workload and improving the efficiency of establishing a three-dimensional model.

[0082] In a possible implementation, a single historical case includes: a second surgical method, a second preoperative image, and a second postoperative image of a single historical patient. The method further includes: based on the second postoperative image of each historical patient, correspondingly determining the second actual form of the bone cement after the surgery of each historical patient; based on the second surgical method, the second preoperative image, and the second actual form corresponding to each historical patient, determining the second material parameters of the postoperative bone of each historical patient, and updating each second material parameter to the corresponding historical case.

[0083] The historical cases may be stored in a historical case library, and each historical case in the historical case library may include a second surgical method, a second preoperative image, a second postoperative image, and a follow-up visit information of a single historical patient.

[0084] After the patient has undergone surgery, the patient can be revisited to record the patient's movements and feelings to form a revisit record. For example, one month after the patient has undergone surgery, the patient can record the movements he or she made when feeling discomfort at the fracture site, as well as the location of the discomfort. This information is used as revisit information.

[0085] In the disclosed embodiment, the actual morphology of the postoperative bone cement diffusion of the historical patient can be identified based on the second postoperative image of the historical patient. For ease of description, the actual morphology is named the second actual morphology. The second actual morphology may include the shape of the bone cement mass in the historical patient. The second actual morphology may include the distance vector from the feature point on the bone cement mass in the historical patient to the injection point. The second actual morphology may characterize the actual diffusion condition after the bone cement configured according to the second surgical parameters is injected into the fractured vertebra using the second surgical method.

[0086] Then, the inverse process of simulating the diffusion of bone cement in the body can be used to infer the material parameters (bone and bone cement parameters) corresponding to the historical patient based on the second actual form and the second surgical method, that is, to obtain the initial second material parameters. Based on the second preoperative image, the fractured vertebra of the historical patient can be modeled to obtain the fractured vertebra model of the historical patient, which is named the first vertebra model for the convenience of description. According to the initial second material parameter, the second surgical method, and the first vertebra model, the fourth predicted form of the diffusion of bone cement after the bone cement characterized by the initial second material parameter is injected into the body of the historical patient using the second surgical method is simulated. The fourth predicted form may include the shape of the predicted bone cement mass in the body of the historical patient. The second actual form may include the distance vector from the feature point on the predicted bone cement mass in the body of the historical patient to the injection point. The fourth predicted form can characterize the inferred diffusion of the bone cement configured according to the second surgical parameter after being injected into the fractured vertebra using the second surgical method. Based on the difference between the fourth predicted form and the second actual form of the same historical patient, the initial second material parameter is corrected to obtain the second material parameter. The second material parameter is updated to the corresponding historical case.

[0087] As mentioned above, the material parameters of the patient include parameters that characterize the bone properties of the fractured vertebra, and the parameters that characterize the bone properties may include microscopic parameters, which are not easy to obtain through detection and imaging. Therefore, it is difficult to obtain the second material parameters of historical patients. Using the method in the embodiment of the present disclosure, not only can the initial second material parameters be obtained by calculation, but also the difference between the fourth predicted morphology and the second actual morphology of the same historical patient can be used to correct the initial second material parameters and obtain accurate second material parameters. In this way, the accuracy of the second material parameters is improved, thereby improving the matching degree of the first surgical method, the first material parameters and the current patient's condition.

[0088] In one possible implementation, the method also includes: determining a first actual form of the postoperative bone cement of the current patient based on the postoperative images of the current patient; simulating the diffusion of the bone cement after it is injected into the body according to the target surgical method based on the target surgical method, the first material parameters, and the preoperative three-dimensional model, to obtain a third predicted form characterizing the diffusion of the bone cement; determining the difference between the first actual form and the third predicted form; based on the difference, calibrating the first material parameters to obtain calibrated material parameters; establishing a historical case of the current patient, and storing the calibrated material parameters and the target surgical method in the historical case.

[0089] The first actual form may be the form of the bone cement in the body of the current patient after surgery. The first actual form may include the shape of the bone cement mass in the current patient. The first actual form may include the distance vector from the feature point on the bone cement mass in the current patient to the injection point.

[0090] In the disclosed embodiment, the diffusion morphology of the bone cement mass after the bone cement characterized by the first material parameters is injected into the current patient according to the target surgical method can be simulated. For the convenience of description, the diffusion morphology is named the third predicted morphology. The third predicted morphology may include the predicted morphology of the bone cement in the body of the current patient after surgery. The third predicted morphology may include the predicted distance vector from the feature point on the bone cement mass in the current patient to the injection point. The third predicted morphology can characterize the inferred diffusion after the bone cement configured according to the first surgical parameters is injected into the fractured vertebra using the target surgical method.

[0091] The difference in the disclosed embodiment can characterize the difference in shape between the predicted bone cement mass and the actual bone cement mass for the current patient, or characterize the difference between the predicted bone cement mass, the same feature point on the actual bone cement mass and the injection point distance vector. Using the difference in the disclosed embodiment, the first material parameter can be calibrated to obtain the calibrated material parameter. A historical case is established for the current patient, and the target surgical method and the calibrated material parameter are stored in the historical case of the current patient.

[0092] In actual operation, during surgery, the doctor can adjust the parameters of bone cement according to the actual bone condition of the current patient. The current bone condition of the patient may not be completely consistent with the first material parameters, and the parameters of the bone cement used in the operation are not completely consistent with the first material parameters. As a result, the calibrated material parameters are more consistent with the current patient's actual bone condition and the condition of the bone cement used in the operation. This makes the current patient's historical case more accurate.

[0093] In a possible implementation, the method also includes: constructing a mechanical analysis model based on the postoperative three-dimensional model of the fractured vertebra of the current patient; using the mechanical analysis model, based on the first actual form, simulating the stress of the fractured vertebra after surgery under various working conditions, and obtaining the stress, strain, and bone cement distribution of the fractured vertebra after surgery under each working condition as a reference for postoperative recovery.

[0094] In the disclosed embodiment, a postoperative three-dimensional model of the fractured vertebra of the current patient may be established based on the postoperative images of the current patient.

[0095] Alternatively, in the process of obtaining the third predicted morphology (the process of simulating the diffusion morphology of the bone cement mass after the bone cement characterized by the first material parameters is injected into the body of the current patient according to the target surgical method), a three-dimensional model of the fractured vertebra of the current patient will be established. This model can be used as the postoperative three-dimensional model of the fractured vertebra of the current patient, which can improve the efficiency of constructing the mechanical analysis model.

[0096] The working conditions here can be various scenarios in which the patient currently uses the fractured vertebra after surgery, such as bending over, getting high objects, sitting in different postures, etc. The working conditions can refer to one or more force parameters received by the fractured vertebra. The force parameters can include compression, tension, shear, bending, torsion, dynamic load, etc. Under various working conditions, the stress, strain, and bone cement distribution of the fractured vertebra correspond respectively.

[0097] In the disclosed embodiment, the stress and strain of the fractured vertebra under various working conditions after surgery can be simulated, as well as the distribution of bone cement in the fractured vertebra, so as to formulate a postoperative recovery plan for the current patient, improve the accuracy of the postoperative recovery plan, and improve its matching degree with the current patient.

[0098] In a possible implementation, a single historical case includes: the second condition information, the second surgical method, and the second material parameters of the postoperative bone of a single historical patient, and the condition information of the current patient includes: the first basic information and the first condition description of the current patient, and determining the first surgical method and the first material parameters of the postoperative bone that match the condition information of the current patient includes: from each of the historical cases, determining a historical case corresponding to at least one second condition information that is most similar to the first basic information and the first condition description of the current patient as a candidate case; and obtaining the first surgical method and the first material parameters based on the second surgical method and the second material parameters in the candidate case.

[0099] The condition information may include the patient's basic information and condition description, and the condition description may include text records of the condition and preoperative images. The condition information may also include postoperative images. Then, the second condition information may include the second basic information and second condition description of the historical patient.

[0100] The second condition description may include a second text record and a second preoperative image. The first condition record may include a first text record and a first preoperative image.

[0101] In the disclosed embodiment, the first basic information and the second basic information may be text records, and thus, based on keywords, the second basic information that is most similar to the first basic information may be matched in each second basic information. The first condition description and the second condition description may be text records and image records. Thus, the second condition description that is most similar to the first condition description may be determined based on keywords, and the second image feature vector may be extracted from the second preoperative image, and the first image feature vector may be extracted from the first preoperative image. Then, the second preoperative image corresponding to the second image feature vector that is most similar to the first image feature vector is determined. The historical case to which the second basic information that is most similar to the first basic information belongs, the historical case to which the second condition description that is most similar to the first condition description belongs, and the historical case to which the second preoperative image corresponding to the second image feature vector that is most similar to the first image feature vector belongs may be determined as candidate cases.

[0102] Method 1: When the number of candidate cases is one, the second surgical method and the second material parameter in the candidate case are used as the first surgical method and the first material parameter.

[0103] Method 2: When the number of candidate cases is more than one, a candidate case may be randomly selected, and the second surgical method and the second material parameters in the randomly selected candidate case may be used as the first surgical method and the first material parameters.

[0104] Method three: The doctor can adjust the second surgical method and the second material parameters determined by method one or method two to obtain the first surgical method and the first material parameters.

[0105] The above is only an example, and the present disclosure does not limit the specific method for obtaining the first surgical method and the first material parameter based on the second surgical method and the second material parameter.

[0106] In the disclosed embodiment, the basic information and condition information of the current patient are used to match candidate cases from historical cases, taking into account more comprehensive factors and improving the accuracy of the matching operation. Moreover, not only text records but also images are used for matching, so that the candidate cases are as consistent as possible with the current patient. In this way, the matching degree between the first surgical method, the first material parameter and the current patient is improved.

[0107] Figure 2 The schematic diagram of the structure of the device for preventing bone cement leakage provided by the embodiment of the present disclosure. Figure 2 As shown, the device 20 comprises:

[0108] A first surgical method and material parameter determination unit 21 is used to determine a first surgical method and a first material parameter of a postoperative bone that are consistent with the condition information of the current patient from historical cases, wherein the first surgical method includes first surgical parameters;

[0109] A first predicted shape determination unit 22 is used to simulate the diffusion of bone cement after it is injected into the body according to the first surgical method based on the first surgical method, the first material parameter, and the preoperative three-dimensional model of the fractured vertebra of the current patient, so as to obtain a first predicted shape representing the diffusion of the bone cement;

[0110] A benchmark evaluation score determination unit 23, configured to evaluate the first surgical method based on the first predicted morphology using an evaluation model to obtain a benchmark evaluation score;

[0111] The target surgical method determination unit 24 is used to adjust the first surgical parameters based on the benchmark evaluation score and to obtain a target surgical method with the purpose of improving the evaluation score.

[0112] In a possible implementation, the target surgical method determination unit 23 is further configured to:

[0113] Based on different first surgical parameters, a plurality of candidate surgical methods are obtained;

[0114] Based on each of the candidate surgical methods, the first material parameter, and the preoperative three-dimensional model, simulating the diffusion of bone cement after it is injected into the body according to each of the candidate surgical methods, and correspondingly obtaining a plurality of second predicted forms characterizing the diffusion of bone cement;

[0115] Using the evaluation model, based on each of the second predicted forms, correspondingly evaluating each of the candidate surgical methods to obtain a scoring result for each of the candidate surgical methods;

[0116] The candidate surgical method corresponding to the scoring result with the highest value and higher than the benchmark evaluation score is used as the target surgical method.

[0117] In a possible implementation, the current patient's condition information includes: a first preoperative image, and the device 20 further includes:

[0118] A first coordinate determination unit is used to determine the first coordinates of each of the four articular processes closest to the fracture position in the spine arrangement direction in the first preoperative image;

[0119] A dividing line determining unit, configured to determine a dividing line based on each of the first coordinates;

[0120] a fractured vertebral image determining unit, configured to segment the fractured vertebral image from the first preoperative image using the segmentation line;

[0121] The preoperative three-dimensional model determination unit is used to perform modeling using the fractured vertebral image to obtain the preoperative three-dimensional model.

[0122] In a possible implementation, the single historical case includes: a second surgical method, a second preoperative image, and a second postoperative image of a single historical patient, and the device 20 further includes:

[0123] A second actual shape determining unit, configured to correspondingly determine a second actual shape of the bone cement after surgery of each of the historical patients based on a second postoperative image of each of the historical patients;

[0124] The second material parameter determination unit is used to determine the second material parameters of the postoperative bones of each historical patient based on the second surgical method, second preoperative image, and second actual morphology corresponding to each historical patient, and update each second material parameter to the corresponding historical case.

[0125] In a possible implementation, the device 20 further includes:

[0126] A first actual shape determining unit, used to determine a first actual shape of the postoperative bone cement of the current patient according to the postoperative image of the current patient;

[0127] A third predicted morphology determination unit is configured to simulate, based on the target surgical method, the first material parameter, and the preoperative three-dimensional model, the diffusion of bone cement after the bone cement is injected into the body according to the target surgical method, so as to obtain a third predicted morphology representing the diffusion of the bone cement;

[0128] a difference determination unit, configured to determine a difference between the first actual form and the third predicted form;

[0129] A first material parameter calibration unit, configured to calibrate the first material parameter based on the difference to obtain a calibrated material parameter;

[0130] The current patient material parameter and surgical method storage unit is used to establish the historical case of the current patient and store the calibrated material parameters and the target surgical method in the historical case.

[0131] In a possible implementation, the device 20 further includes:

[0132] A mechanical analysis model building unit, used to build a mechanical analysis model based on a postoperative three-dimensional model of a fractured vertebra of a current patient;

[0133] The working condition simulation unit is used to use the mechanical analysis model to simulate the stress of the fractured vertebrae after surgery under various working conditions based on the first actual form, and obtain the stress, strain and bone cement distribution of the fractured vertebrae after surgery under various working conditions as a reference for postoperative recovery.

[0134] In a possible implementation, a single historical case includes: second condition information, a second surgical method, and a second material parameter of a postoperative bone of a single historical patient; the condition information of the current patient includes: first basic information and a first condition description of the current patient; the first surgical method and material parameter determination unit 21 is further used to:

[0135] From the historical cases, determine a historical case corresponding to at least one second condition information that is most similar to the first basic information and the first condition description of the current patient as a candidate case;

[0136] The first surgical method and the first material parameter are obtained based on the second surgical method and the second material parameter in the candidate case.

[0137] In some embodiments, the functions or modules included in the device provided by the embodiments of the present disclosure can be used to execute the method described in the above method embodiments. The specific implementation can refer to the description of the above method embodiments, and for the sake of brevity, it will not be repeated here.

[0138] The embodiment of the present disclosure also provides a computer-readable storage medium on which computer program instructions are stored, and the computer program instructions implement the above method when executed by a processor. The computer-readable storage medium can be a volatile or non-volatile computer-readable storage medium.

[0139] An embodiment of the present disclosure further proposes an electronic device, comprising: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to implement the above method when executing the instructions stored in the memory.

[0140] The embodiments of the present disclosure also provide a computer program product, including a computer-readable code, or a non-volatile computer-readable storage medium carrying the computer-readable code. When the computer-readable code runs in a processor of an electronic device, the processor in the electronic device executes the above method.

[0141] Figure 3 The electronic device 1900 is a schematic diagram of the structure of an electronic device for preventing bone cement leakage provided by an embodiment of the present disclosure. For example, the electronic device 1900 can be provided as a server or a terminal device. Figure 3 , the electronic device 1900 includes a processing component 1922, which further includes one or more processors, and a memory resource represented by a memory 1932 for storing instructions executable by the processing component 1922, such as an application. The application stored in the memory 1932 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 1922 is configured to execute instructions to perform the above method.

[0142] The electronic device 1900 may also include a power supply component 1926 configured to perform power management of the electronic device 1900, a wired or wireless network interface 1950 configured to connect the electronic device 1900 to a network, and an input / output interface 1958 (I / O interface). The electronic device 1900 may operate based on an operating system stored in the memory 1932, such as Windows Server 2003. TM , Mac OS X TM , Unix TM ,Linux TM , FreeBSD TM or similar.

[0143] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 1932 including computer program instructions, which can be executed by the processing component 1922 of the electronic device 1900 to perform the above method.

[0144] The present disclosure may be a system, a method and / or a computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present disclosure.

[0145] A computer-readable storage medium may be a tangible device that can hold and store instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (a non-exhaustive list) include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination of the foregoing. As used herein, a computer-readable storage medium is not to be interpreted as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through a wire.

[0146] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0147] The computer program instructions for performing the operation of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages, such as Smalltalk, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. Computer-readable program instructions may be executed completely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be customized by utilizing the state information of the computer-readable program instructions, and the electronic circuit may execute the computer-readable program instructions, thereby realizing various aspects of the present disclosure.

[0148] Various aspects of the present disclosure are described herein with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer-readable program instructions.

[0149] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device that implements the functions / actions specified in one or more boxes in the flowchart and / or block diagram is generated. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause the computer, programmable data processing device, and / or other equipment to work in a specific manner, so that the computer-readable medium storing the instructions includes a manufactured product, which includes instructions for implementing various aspects of the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0150] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operating steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0151] The flow chart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to multiple embodiments of the present disclosure. In this regard, each square box in the flow chart or block diagram can represent a part of a module, program segment or instruction, and a part of the module, program segment or instruction includes one or more executable instructions for realizing the specified logical function. In some alternative implementations, the function marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two continuous square boxes can actually be executed substantially in parallel, and they can sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the specified function or action, or can be implemented with a combination of special hardware and computer instructions.

[0152] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A method for preventing bone cement leakage, characterized in that: include: Determine, from historical cases, a first surgical method that matches the condition information of the current patient and first material parameters of the postoperative bone, wherein the first surgical method includes first surgical parameters; Based on the first surgical method, the first material parameter, and the preoperative three-dimensional model of the fractured vertebra of the current patient, the diffusion of the bone cement after being injected into the body according to the first surgical method is simulated to obtain a first predicted morphology characterizing the diffusion of the bone cement; Using an evaluation model, based on the first predicted morphology, the first surgical method is evaluated to obtain a benchmark evaluation score; Based on the benchmark evaluation score and with the purpose of improving the evaluation score, the first surgical parameter is adjusted to obtain a target surgical method.

2. The method according to claim 1, characterized in that: The step of adjusting the first surgical parameter based on the benchmark evaluation score and aiming at improving the evaluation score to obtain a target surgical method includes: Based on different first surgical parameters, a plurality of candidate surgical methods are obtained; Based on each of the candidate surgical methods, the first material parameter, and the preoperative three-dimensional model, simulating the diffusion of bone cement after it is injected into the body according to each of the candidate surgical methods, and correspondingly obtaining a plurality of second predicted forms characterizing the diffusion of bone cement; Using the evaluation model, based on each of the second predicted forms, correspondingly evaluating each of the candidate surgical methods to obtain a scoring result for each of the candidate surgical methods; The candidate surgical method corresponding to the scoring result with the highest value and higher than the benchmark evaluation score is used as the target surgical method.

3. The method according to claim 1, characterized in that The current patient's condition information includes: a first preoperative image, and the method further includes: In the direction of the spine arrangement in the first preoperative image, determine the first coordinates of each of the four articular processes closest to the fracture position; Based on each of the first coordinates, determining a segmentation line; Using the segmentation line, segmenting the fractured vertebral image from the first preoperative image; The fractured vertebral image is used to perform modeling to obtain the preoperative three-dimensional model.

4. The method according to claim 1, characterized in that: The single historical case includes: a second surgical method, a second preoperative image, and a second postoperative image of a single historical patient, and the method further includes: Based on the second postoperative images of each historical patient, correspondingly determining the second actual form of the bone cement after the operation of each historical patient; Based on the second surgical method, the second preoperative image, and the second actual morphology corresponding to each historical patient, the second material parameters of the postoperative bone of each historical patient are determined, and each of the second material parameters is updated to the corresponding historical case.

5. The method according to claim 1, characterized in that The method further comprises: Determine the first actual shape of the postoperative bone cement of the current patient according to the postoperative images of the current patient; Based on the target surgical method, the first material parameter, and the preoperative three-dimensional model, simulating the diffusion of bone cement after it is injected into the body according to the target surgical method, and obtaining a third predicted form characterizing the diffusion of bone cement; determining a difference between the first actual shape and the third predicted shape; Based on the difference, calibrate the first material parameter to obtain a calibrated material parameter; A historical case of the current patient is established, and the calibrated material parameters and the target surgical method are stored in the historical case.

6. The method according to claim 5, characterized in that The method further comprises: Based on the postoperative three-dimensional model of the fractured vertebra of the current patient, a mechanical analysis model was constructed; The mechanical analysis model is used to simulate the stress of the fractured vertebrae after surgery under various working conditions based on the first actual form, and the stress, strain and bone cement distribution of the fractured vertebrae after surgery under various working conditions are obtained as a reference for postoperative recovery.

7. The method according to claim 1, characterized in that The single historical case includes: the second condition information, the second surgical method, and the second material parameter of the postoperative bone of the single historical patient; the condition information of the current patient includes: the first basic information and the first condition description of the current patient; the first surgical method and the first material parameter of the postoperative bone that are determined to be consistent with the condition information of the current patient include: From the historical cases, determine a historical case corresponding to at least one second condition information that is most similar to the first basic information and the first condition description of the current patient as a candidate case; The first surgical method and the first material parameter are obtained based on the second surgical method and the second material parameter in the candidate case.

8. A device for preventing bone cement leakage, characterized in that: include: A first surgical method and material parameter determination unit, used to determine a first surgical method and a first material parameter of a postoperative bone that match the condition information of a current patient from historical cases, wherein the first surgical method includes first surgical parameters; A first predicted shape determination unit is used to simulate the diffusion of bone cement after it is injected into the body according to the first surgical method based on the first surgical method, the first material parameter, and the preoperative three-dimensional model of the fractured vertebra of the current patient, so as to obtain a first predicted shape characterizing the diffusion of the bone cement; a benchmark evaluation score determination unit, configured to evaluate the first surgical method based on the first predicted morphology using an evaluation model to obtain a benchmark evaluation score; The target surgical method determination unit is used to adjust the first surgical parameter based on the benchmark evaluation score and to obtain the target surgical method with the purpose of improving the evaluation score.

9. An electronic device, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to implement the method described in any one of claims 1 to 7 when executing the instructions stored in the memory.

10. A non-volatile computer-readable storage medium having computer program instructions stored thereon, characterized in that: When the computer program instructions are executed by a processor, the method according to any one of claims 1 to 7 is implemented.

Images