Osteotomy device
By designing an osteotomy device with an inclined osteotomy groove and an alignment marker, the problems of osteotomy accuracy and soft tissue tension balance in total knee replacement surgery are solved, and high-quality osteotomy and extra-section operations are achieved.
Patent Information
- Application Number
- CN202421729869.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-19
AI Technical Summary
In prior art In total knee replacement surgery, osteotomy accuracy and soft tissue tension balance are difficult to achieve, resulting in low surgical quality and traditional tools that cannot be intercepted, which may cause irreversible soft tissue damage.
An osteotomy device is designed, including a main body part, a positioning plate and an osteotomy groove. The osteotomy groove is inclined to the top and bottom surfaces, and positioning and fixing are achieved through alignment marking parts and fixing holes, supporting the addition of the cleavage on the original osteotomy plane.
The accuracy of osteotomy and soft tissue tension balance are improved, and the interception operation on the original osteotomy plane is achieved, which reduces damage to soft tissue and improves the quality of the surgery.
Smart Images
Figure CN222983108U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical devices, in particular to an osteotomy device. Background Art
[0002] Total knee arthroplasty is an effective means for treating knee joint related diseases. In this operation, the severely worn distal femur and tibial plateau of the patient are resected, and corresponding femoral and tibial prostheses are installed to replace the original bone structure, so as to restore the patient's mobility and knee joint function.
[0003] The key to total knee arthroplasty is whether the osteotomy is precise and whether the soft tissue tension is balanced. The precision of osteotomy determines whether the soft tissue tension of the knee joint is balanced. Precise osteotomy can effectively reduce soft tissue interference and keep the soft tissues of the patient as close as possible to their original mechanical functions. In particular, the osteotomy of the femoral condyle and the tibial plateau determines the final installation positions of the femoral and tibial prostheses, directly affecting the quality of the operation.
[0004] Currently, in clinical practice, the osteotomy of the femoral condyle and the tibial plateau mainly relies on the experience of the surgeon and traditional surgical tools. This method has many limitations, such as insufficient osteotomy volume or imbalance of the medial and lateral soft tissue tensions. Once these problems occur, it is often necessary to solve them by increasing the osteotomy volume or releasing the soft tissues. However, releasing the soft tissues will cause irreversible damage to the patient. Therefore, increasing the osteotomy volume (hereinafter also referred to as "additional osteotomy") has become a common choice. However, traditional tools cannot directly perform additional osteotomy after the first osteotomy is completed, because all tools have been removed from the patient when the first osteotomy is completed. At this time, if additional osteotomy is to be performed, the operating surgeon can only perform osteotomy manually according to experience by referring to the first osteotomy plane, resulting in a large error. If it is also found that the soft tissue tension is relatively large at this time, the soft tissues will be released, which will cause irreversible damage to the patient's soft tissues and affect the postoperative rehabilitation effect of the patient.
[0005] In addition to the above-mentioned traditional osteotomy methods based on experience, currently, osteotomy methods using computer-aided navigation have emerged. For example, robotic osteotomy. Currently, robotic osteotomy can perform osteotomy on the distal femur, the anterior and posterior condyles of the femur, and the two inclined planes of the femur at one time, without the need to install and use auxiliary tools in the middle. This can greatly liberate doctors from the operation, and has the advantage of simple operation compared with the traditional osteotomy method. However, robotic osteotomy only considers the osteotomy thickness in the fully extended position and the flexed position to the greatest extent, that is, the osteotomy thickness of the distal femur and the posterior condyle of the femur, and does not consider the problem of the soft tissue medial-lateral tension balance in the flexed state after osteotomy. Therefore, after robotic osteotomy, doctors still need to rely on experience to perform soft tissue release to ensure the reliability of the knee joint prosthesis (including femoral prosthesis, tibial prosthesis, meniscus liner, etc.) after installation. In addition, robotic osteotomy requires a long preoperative preparation time, does not shorten the operation time compared with traditional surgery, and the learning curve of robotic osteotomy is also relatively long. At the same time, due to the high cost of robotic osteotomy and high surgical fees, it does not have a cost advantage. Summary of the Utility Model
[0006] The technical solution proposed by the present utility model aims to solve one or more of the above-mentioned disadvantages existing in the prior art.
[0007] In one aspect of the present utility model, an osteotomy device is provided. The osteotomy device includes: a main body portion having opposite front and rear surfaces, opposite top and bottom surfaces, and opposite left and right surfaces; a positioning plate extending outward along the width direction of the main body portion from one of the front and rear surfaces; and an osteotomy groove extending through the main body portion from the front surface to the rear surface along the width direction. The osteotomy groove is inclined relative to the top and bottom surfaces and does not reach the left and right surfaces.
[0008] In at least one embodiment of one aspect of the present utility model, the osteotomy device further includes an alignment marking portion disposed at the mid-axis position of the top surface along the width direction.
[0009] In at least one embodiment of one aspect of the present utility model, the alignment marking portion is linear.
[0010] In at least one embodiment of one aspect of the present utility model, the alignment marking portion is one of a pattern, a groove, and a flange.
[0011] In at least one embodiment of one aspect of the present utility model, the osteotomy device further includes an alignment marking portion extending outward from one of the left and right surfaces and bending in the extending direction of the positioning plate.
[0012] In at least one embodiment of one aspect of the present utility model, the osteotomy device further includes at least one fixing hole, and the at least one fixing hole penetrates through the main body portion from the front surface to the rear surface along the width direction.
[0013] In at least one embodiment of one aspect of the present utility model, the included angle formed by the osteotomy groove and the top surface is less than 3 degrees.
[0014] In at least one embodiment of one aspect of the present utility model, the positioning plate extends outward from the top surface and is coplanar with the top surface.
[0015] In another aspect of the present utility model, an osteotomy device is provided. The osteotomy device includes: a main body portion having opposite front and rear surfaces, opposite top and bottom surfaces, and opposite left and right surfaces; a first positioning plate extending outward from the rear surface along the width direction of the main body portion; a second positioning plate extending outward from the front surface in a direction opposite to that of the first positioning plate; and opposite first and second osteotomy grooves penetrating through the main body portion from the front surface to the rear surface along the width direction, the first and second osteotomy grooves being respectively close to the top and bottom surfaces and being inclined relative to the top and bottom surfaces, and the first and second osteotomy grooves not reaching the left and right surfaces.
[0016] In at least one embodiment of another aspect of the present utility model, the osteotomy device further includes a first alignment marking portion and a second alignment marking portion. The first alignment marking portion is disposed at the central axis position of the top surface along the width direction, and the second alignment marking portion is disposed at the central axis position of the bottom surface along the width direction.
[0017] In at least one embodiment of another aspect of the present utility model, the first alignment marking portion and the second alignment marking portion are linear.
[0018] In at least one embodiment of another aspect of the present utility model, the first alignment marking portion and the second alignment marking are one of a pattern, a groove, and a flange.
[0019] In at least one embodiment of another aspect of the present utility model, the osteotomy device further includes a first alignment marking portion and a second alignment marking portion. The first alignment marking portion extends outward from the right surface and bends in the extending direction of the first positioning plate, and the second alignment marking portion extends outward from the left surface and bends in the extending direction of the second positioning plate.
[0020] In at least one embodiment of another aspect of the present utility model, one end of the first osteotomy groove close to the first alignment marking portion is closer to the top surface than the other end, and one end of the second osteotomy groove close to the second alignment marking portion is closer to the bottom surface than the other end.
[0021] In at least one embodiment of another aspect of the present utility model, the osteotomy device further includes at least one fixing hole, and at least one fixing hole penetrates through the main body portion from the front surface to the back surface in the width direction.
[0022] In at least one embodiment of another aspect of the present utility model, the included angle formed by the first osteotomy groove and the top surface is less than 3 degrees, and the included angle formed by the second osteotomy groove and the bottom surface is less than 3 degrees.
[0023] In at least one embodiment of another aspect of the present utility model, the first positioning plate extends outward from the top surface and is coplanar with the top surface, and the second positioning plate extends outward from the bottom surface and is coplanar with the bottom surface.
[0024] In at least one embodiment of another aspect of the present utility model, the first osteotomy groove is parallel to the second osteotomy groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] To further clarify the above and other advantages and features of the embodiments of the present utility model, a more specific description of the embodiments of the present utility model will be presented with reference to the accompanying drawings. It should be understood that these drawings only depict typical embodiments of the present utility model and thus will not be considered as limiting the scope of protection required by the present utility model, where
[0026] Figure 1 and Figure 2 FIG. shows schematic diagrams of the osteotomy device from different angles according to some embodiments of the present utility model;
[0027] Figure 3A and Figure 3B FIG. shows a schematic diagram of the included angle between the osteotomy groove and the top surface according to some embodiments of the present utility model;
[0028] Figure 4 FIG. shows a schematic diagram of the osteotomy device installed on the tibial plateau according to some embodiments of the present utility model;
[0029] Figure 5 and Figure 6 FIG. shows schematic diagrams of the osteotomy device from different angles according to some other embodiments of the present utility model;
[0030] Figure 7A FIG. shows a schematic diagram of the outermost side of the tibial plateau according to some other embodiments of the present utility model; and
[0031] Figure 7B FIG. shows a schematic diagram of the osteotomy device installed on the tibial plateau according to some other embodiments of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.
[0033] In the following description, the orientation or positional relationship indicated by terms such as "front", "rear", "inner", "outer", "center", "upper", "lower", "left", "right", "vertical", "horizontal" or other orientation terms is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present disclosure, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.
[0034] The present disclosure uses specific terms to describe the embodiments of the present disclosure. Such as "one embodiment", "other embodiments", and / or "some embodiments" mean a certain feature, structure or characteristic related to at least one embodiment of the present disclosure. Therefore, it should be emphasized and noted that the "one embodiment" or "other embodiments" or "some embodiments" mentioned twice or more at different positions in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of the present disclosure can be combined appropriately.
[0035] It should be noted that in order to simplify the expression of the present disclosure and thus help the understanding of one or more embodiments, in the description of the embodiments of the present disclosure in the present disclosure, sometimes multiple features are merged into one embodiment, drawing or description thereof. However, this disclosure method does not mean that the features required by the object of the present disclosure are more than those mentioned in the claims.
[0036] In the present disclosure, if there is no special description, all the embodiments and preferred embodiments mentioned herein can be combined with each other to form a new technical solution. In the present disclosure, if there is no special description, all the technical features and preferred features mentioned herein can be combined with each other to form a new technical solution.
[0037] The osteotomy device provided according to an embodiment of the present disclosure will be described in detail below with reference to the accompanying drawings.
[0038] First Embodiment
[0039] Figure 1 and Figure 2 FIGs. illustrate schematic views of the osteotomy device 10 according to the first embodiment of the present disclosure from different angles. For ease of understanding, Figure 1 the length direction X, width direction Y, and height direction Z are illustrated. As Figure 1 and Figure 2 shown, the osteotomy device 10 may include a main body portion 102, a positioning plate 104, and an osteotomy groove 106.
[0040] The overall shape of the main body portion 102 is approximately a cuboid, having opposite front surface 1021 and rear surface 1022, opposite top surface 1023 and bottom surface 1024, and opposite left surface (not shown) and right surface 1026. The front surface 1021, rear surface 1022, top surface 1023, bottom surface 1024, left surface, and right surface 1026 are generally rectangular or oblong, and there may be a certain arc at the position where two surfaces meet. In some embodiments, the position where two surfaces meet may also be a right angle. In addition, in order to reduce the weight of the osteotomy device 10, those skilled in the art may also adjust the shape of the main body portion 102 of the osteotomy device 10 as needed. For example, openings may be provided on the surface of the main body portion 102, or the main body portion 102 may be designed as a partially hollow structure.
[0041] The positioning plate 104 extends outward from one of the front surface 1021 and the rear surface 1022 along the width direction of the main body portion 102. In Figure 1 and Figure 2 the illustrated embodiment, the positioning plate 104 extends outward from the rear surface 1022 of the main body portion 102 along the width direction (Y direction) of the main body portion 102. In some embodiments, the positioning plate 104 extends outward from the top surface 1023 and is coplanar with the top surface 1023. The positioning plate 104 may have a circular arc-shaped outer edge. In some embodiments, the shape of the positioning plate 104 may also be rectangular, semi-elliptical, or other suitable shapes.
[0042] The osteotomy groove 106 extends through the main body portion 102 from the front surface 1021 to the rear surface 1022 along the width direction. When using the osteotomy device 10, the osteotomy knife will pass through the osteotomy groove 106 for osteotomy. The osteotomy groove 106 may be inclined with respect to the top surface 1023 and the bottom surface 1024 of the main body portion 102, such that the osteotomy plane after osteotomy is an inclined plane that inclines inward or outward. For example, as Figure 3A and Figure 3BAs shown, the included angle formed by the osteotomy groove 106 and the top surface 1023 refers to the included angle A between the extension plane of the osteotomy groove and the extension plane of the top surface. The osteotomy groove 106 can be inclined to the left relative to the top surface 1023 (as shown in Figure 3A ), or inclined to the right (as shown in Figure 3B ). During the operation, the operator can select the corresponding osteotomy device according to the left and right legs and the magnitude of the medial and lateral soft tissue tension after installing the corresponding prosthesis trial mold for installation and osteotomy.
[0043] In some embodiments, the included angle A formed by the osteotomy groove 106 and the top surface 1023 can be less than 3 degrees. In other embodiments, the included angle A formed by the osteotomy groove 106 and the top surface 1023 can be 2 degrees. It should be understood that the magnitude of the included angle A can be designed according to different surgical situations and is not limited to a specific numerical angle.
[0044] The osteotomy groove 106 does not reach the left surface and the right surface 1026 of the main body 102. That is, the projected length of the osteotomy groove in the length direction is less than the length of the main body 102. Preferably, the projected length of the osteotomy groove is close to the length of the main body 102 to obtain the maximum operating flexibility, that is, the osteotomy knife can have a larger movement range during osteotomy. The osteotomy groove 106 can have a certain thickness so that the osteotomy knife can pass through the osteotomy groove 106 for osteotomy. However, when the thickness of the osteotomy groove 106 is too large, the osteotomy knife is prone to move up and down in the osteotomy groove, which is not conducive to the stability of the osteotomy knife during operation. The thickness of the osteotomy groove 106 can be reasonably selected according to the thickness of the osteotomy knife.
[0045] Figure 4 The figure shows an installation schematic diagram of the osteotomy device 10 fixed on the tibial plateau 40 according to the first embodiment of the present disclosure. The following combines Figure 4 to describe the usage scenario of the osteotomy device in total knee arthroplasty. During the operation, the operator first finishes osteotomizing the femoral condyle and the tibial plateau 40 and installs the prosthesis, and then judges the medial and lateral soft tissue tension (for example, when the medial soft tissue tension is relatively tight (the medial tension is greater than the lateral tension), additional osteotomy needs to be performed on the medial side, and at the same time, a certain varus angle of the patient needs to be ensured), so as to install the appropriate osteotomy device 10 according to the magnitude of the medial and lateral tissue tension for additional osteotomy. When installing, select the osteotomy device 10 with an osteotomy groove 106 having different inclination directions according to the left and right legs of the patient, face the osteotomy device 10 towards the operator, press the lower bottom surface of the positioning plate 104 tightly against the already osteotomized tibial plateau 40, and then pass the osteotomy knife through the osteotomy groove 106 for osteotomy operation, thereby realizing the additional osteotomy operation with an inclination angle.
[0046] Continue to refer to Figure 1 and Figure 2, in some embodiments, the osteotomy device 10 may further include an alignment marking portion 108, and the alignment marking portion 108 may be disposed along the width direction at the central axis position of the top surface 1023. In some embodiments, the alignment marking portion 108 may be linear. In some embodiments, the alignment marking portion may be at least one of a pattern, a groove, and a flange. For example, in Figure 1 and Figure 2 In the illustrated embodiment, the alignment marking portion 108 is a groove. In the above operation, after the lower bottom surface of the positioning plate 104 is pressed against the tibial plateau 40, the osteotomy device 10 can be translated left and right so that the alignment marking portion 108 is aligned with the anterior-posterior axis (AP axis) of the tibia, and then osteotomy is performed. The tibial AP axis mainly refers to an axis in the anterior-posterior direction determined by specific anatomical landmark points of the tibia in anatomy, and can be determined visually. Through the alignment marking portion 108, the operator can position the osteotomy device 10 relative to the human body during the operation, especially in the X direction. It should be understood that the length and width of the alignment marking portion 108 can be adjusted according to the size of the main body portion 102 without departing from the scope of the present disclosure.
[0047] In some embodiments, the osteotomy device 10 may further include at least one fixing hole 110. The at least one fixing hole 110 is used to fix the osteotomy device 10 to the bone. As Figure 1 and Figure 2 shown, the osteotomy device 10 may include two fixing holes 110. The fixing holes 110 may penetrate the main body portion 102 from the front surface 1021 to the rear surface 1022 along the width direction. During the operation, after the lower bottom surface of the positioning plate 104 is pressed against the tibial plateau 40, nails can be driven through the fixing holes 110 to fix the osteotomy device 10 to the bone, thereby improving the stability during osteotomy. In some embodiments, the number of the at least one fixing hole 110 may be an even number and may be symmetrically distributed on both sides of the front surface 1021. In other embodiments, the number of the at least one fixing hole 110 may be one and may be disposed at the central axis position of the front surface 1021, and this symmetrical distribution helps to increase the balance and stability of the osteotomy device during fixation. In some embodiments, the opening shape of the at least one fixing hole 110 may be circular. It should be understood that depending on the shape of the fixing nail, the fixing hole 110 may have different widths and sizes to ensure that the fixing nail can be tightly and firmly fixed in the hole.
[0048] Second Embodiment
[0049] Figure 5 and Figure 6 illustrate schematic diagrams of different angles of the osteotomy device 20 according to the second embodiment of the present disclosure. As Figure 5 and Figure 6As shown, the osteotomy device 20 may include a main body portion 202, a first positioning plate 204, a second positioning plate 206, and opposite first and second osteotomy grooves 208 and 210. The main body portion 202 has opposite front and rear surfaces 2021 and 2022, opposite top and bottom surfaces 2023 and 2024, and opposite left and right surfaces 2025 and 2026. Similar features of the main body portion 202 and the main body portion 102, the first positioning plate 204 and the positioning plate 104, and the first and second osteotomy grooves 208 and 210 and the osteotomy groove 106 will not be described in detail herein. The differences between the osteotomy device 20 and the osteotomy device 10 will be described below with emphasis.
[0050] The first positioning plate 204 extends outward from the rear surface 2022 in the width direction of the main body portion 202. The second positioning plate 206 extends outward from the front surface 2021 in a direction opposite to that of the first positioning plate 204. The first and second osteotomy grooves 208 and 210 penetrate through the rear surface 2022 of the main body portion 202 from the front surface 2021 in the width direction. The first and second osteotomy grooves 208 and 210 are respectively close to the top surface 2023 and the bottom surface 2024 and are inclined relative to the top surface 2023 and the bottom surface 2024, and the first and second osteotomy grooves 208 and 210 do not reach the left surface 2025 and the right surface 2026.
[0051] In some embodiments, the angle formed by the first osteotomy groove 208 and the top surface 2023 is less than 3 degrees, and the angle formed by the second osteotomy groove 210 and the bottom surface 2024 is less than 3 degrees. In some embodiments, the first osteotomy groove 208 and the second osteotomy groove 210 are parallel to each other to ensure the same osteotomy angle when the osteotomy device 20 is used for the left and right legs. In some embodiments, the inclination directions of the first osteotomy groove 208 and the second osteotomy groove 210 may be the same (as will be described in more detail below).
[0052] In some embodiments, the osteotomy device 20 may include an alignment marking portion (not shown) similar to that of the osteotomy device 10. In this embodiment, the osteotomy device 20 may include a first alignment marking portion 212 and a second alignment marking portion 214. The first alignment marking portion 212 extends outward from the right surface 2026 and bends in the extending direction of the first positioning plate 204, and the second alignment marking portion 214 extends outward from the left surface 2025 and bends in the extending direction of the second positioning plate 206. In some embodiments, the first alignment marking portion 212 and the second alignment marking portion 214 may be arcuate hooks, while in other embodiments, the first alignment marking portion 212 and the second alignment marking portion 214 may be right-angled hooks. In other embodiments, the first alignment marking portion 212 and the second alignment marking portion 214 may also adopt other suitable shapes suitable for pointing.
[0053] The first alignment mark portion 212 and the second alignment mark portion 214 can be used to achieve the positioning of the osteotomy device 20 in the longitudinal direction (X direction). For example, the outermost positions of the first alignment mark portion 212 and the second alignment mark portion 214 can be pointed to the outer edge of the osteotomy surface as the reference position for bone addition, so as to ensure that the osteotomy surface after bone addition is osteotomized with reference to the outermost side of the osteotomy surface. For example, Figure 7A the circled part in
[0054] shows the outermost side of the tibial plateau 40. Figure 7B As shown, when using the osteotomy device 20 for osteotomy, the lower bottom surface of the first positioning plate 204 is closely attached to the already osteotomized tibial plateau 40, and the osteotomy device 20 is translated left and right (along the X direction) so that the outermost position of the first alignment mark portion 212 on one side of the first positioning plate 204 points to the outer edge of the tibial plateau 40 as the reference position for bone addition, so as to ensure that the osteotomy surface after bone addition is osteotomized with reference to the outermost side of the tibial plateau 40, making the osteotomy more accurate.
[0055] In addition, similar to the osteotomy device 10, the osteotomy device 20 may also include at least one fixing hole 216 for fixing the osteotomy device 20 to the bone.
[0056] According to the clinical requirements of total knee surgery and the physiological structure of the knee joint, in most cases, a certain varus angle of the patient's knee joint will be ensured, that is, the tibial plateau will tilt medially after bone addition. Based on this, the bone addition devices for the left and right legs can be designed as a universal device. In other words, in some embodiments, the osteotomy device 20 can only consider one osteotomy direction. In such an embodiment, one end of the first osteotomy groove 208 close to the first alignment mark portion 212 can be closer to the top surface 2023 than the other end, and one end of the second osteotomy groove 210 close to the second alignment mark portion 214 can be closer to the bottom surface 2024 than the other end (corresponding to Figure 3A a leftward tilt). Through such a setting, an inwardly tilted osteotomy platform can be obtained after osteotomy. When an outward tilt osteotomy is required, the osteotomy device 10 described in the reference Figure 3B can be used to replace it.
[0057] It should be understood that although this article mainly describes the bone addition of the tibial plateau, the osteotomy device of the present disclosure can also be applicable to other osteotomy scenarios, such as the bone addition of the femoral plateau. It should be understood that the alignment mark portions 212 and 214 of the second embodiment can also be applied to the osteotomy device 10 of the first embodiment.
[0058] Although the present utility model has been described in accordance with the preferred embodiments of the present disclosure, it is not intended to be limited thereto, but only limited by the scope set forth in the appended claims. Those skilled in the art should understand that various modifications and changes can be made to the embodiments described herein without departing from the broader spirit and scope of the present utility model as set forth in the appended claims.
Claims
1. An osteotomy device, characterized in that: The osteotomy device comprises: a main body portion having opposing front and rear surfaces, opposing top and bottom surfaces, and opposing left and right surfaces; a positioning plate extending outwardly from one of the front surface and the rear surface in a width direction of the main body; and An osteotomy groove extends from the front surface through the main body portion along the width direction to the rear surface, the osteotomy groove is inclined relative to the top surface and the bottom surface, and the osteotomy groove does not reach the left surface and the right surface.
2. The osteotomy device according to claim 1, characterized in that: The osteotomy device further includes an alignment mark portion, which is disposed at a central axis position of the top surface along the width direction.
3. The osteotomy device according to claim 2, characterized in that: The alignment mark portion is in a line shape.
4. The osteotomy device according to claim 3, characterized in that: The alignment mark portion is one of a pattern, a groove, and a ridge.
5. The osteotomy device according to claim 1, characterized in that: The osteotomy device further includes an alignment mark portion extending outward from one of the left surface and the right surface and bent toward an extending direction of the positioning plate.
6. The osteotomy device according to claim 1, characterized in that: The osteotomy device further includes at least one fixing hole, and the at least one fixing hole penetrates the main body from the front surface to the rear surface along the width direction.
7. The osteotomy device according to claim 1, characterized in that: The angle formed by the osteotomy groove and the top surface is less than 3 degrees.
8. The osteotomy device according to claim 1, characterized in that: The positioning plate extends outwardly from the top surface and is coplanar with the top surface.
9. An osteotomy device, characterized in that: The osteotomy device comprises: a main body portion having opposing front and rear surfaces, opposing top and bottom surfaces, and opposing left and right surfaces; a first positioning plate extending outward from the rear surface along a width direction of the main body; a second positioning plate extending outwardly from the front surface in a direction opposite to the first positioning plate; and The first osteotomy groove and the second osteotomy groove are opposite, and the first osteotomy groove and the second osteotomy groove penetrate the main body from the front surface along the width direction to reach the rear surface. The first osteotomy groove and the second osteotomy groove are respectively close to the top surface and the bottom surface and are inclined relative to the top surface and the bottom surface, and the first osteotomy groove and the second osteotomy groove do not reach the left surface and the right surface.
10. The osteotomy device according to claim 9, characterized in that: The osteotomy device further includes a first alignment mark portion and a second alignment mark portion, the first alignment mark portion being disposed at a central axis position of the top surface along the width direction, and the second alignment mark portion being disposed at a central axis position of the bottom surface along the width direction.
11. The osteotomy device according to claim 10, characterized in that: The first alignment mark portion and the second alignment mark portion are in a line shape.
12. The osteotomy device according to claim 11, characterized in that: The first alignment mark portion and the second alignment mark are one of a pattern, a groove, and a ridge.
13. The osteotomy device according to claim 9, characterized in that: The osteotomy device further includes a first alignment mark portion extending outward from the right surface and bending toward an extension direction of the first positioning plate, and a second alignment mark portion extending outward from the left surface and bending toward an extension direction of the second positioning plate.
14. The osteotomy device according to claim 13, characterized in that: One end of the first osteotomy groove close to the first alignment mark is closer to the top surface than the other end, and one end of the second osteotomy groove close to the second alignment mark is closer to the bottom surface than the other end.
15. The osteotomy device according to claim 9, characterized in that: The osteotomy device further includes at least one fixing hole, and the at least one fixing hole penetrates the main body from the front surface to the rear surface along the width direction.
16. The osteotomy device according to claim 9, characterized in that: An included angle formed by the first osteotomy groove and the top surface is less than 3 degrees, and an included angle formed by the second osteotomy groove and the bottom surface is less than 3 degrees.
17. The osteotomy device according to claim 9, characterized in that: The first positioning plate extends outwardly from and is coplanar with the top surface, and the second positioning plate extends outwardly from and is coplanar with the bottom surface.
18. The osteotomy device according to claim 9, characterized in that: The first osteotomy groove is parallel to the second osteotomy groove.