Anterior cervical spine lifting method and anterior cervical spine lifting fixation plate
By designing an anterior cervical spine lifting fixation plate and using a "冂"-shaped structure to connect with the vertebral body, the problem of weak holding force of lifting screws on cancellous bone in existing technologies is solved, thereby improving the success rate and connection strength of vertebral body lifting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FUZHOU TRADITIONAL CHINESE MEDICINE HOSPITAL
- Filing Date
- 2022-11-08
- Publication Date
- 2026-04-21
AI Technical Summary
In ACAF surgery for ossification of the posterior longitudinal ligament of the cervical spine, vertebral body traction is difficult with existing techniques, especially due to the low hardness of the vertebral cancellous bone, which results in weak holding force of the traction screws and easily leads to traction failure.
A cervical anterior traction fixation plate is designed, which adopts a long strip structure with a traction hole in the middle and fixation parts at both ends. Fixation holes are inclined on the fixation parts to form a bendable "冂"-shaped structure. The fixation parts are straddling the vertebral body and connected to the upper and lower endplates of the vertebral body. They are connected to the fixation plate by traction screws to apply traction force.
It improved the success rate of vertebral body traction during ACAF surgery, enhanced connection strength, prevented the traction screw from being directly screwed into the cancellous bone, and enhanced the traction effect.
Smart Images

Figure CN115645022B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of anterior cervical spine surgical instruments, and particularly to an anterior cervical spine lifting method and an anterior cervical spine lifting fixing plate. Background Art
[0002] As the name implies, ossification of the posterior longitudinal ligament of the cervical spine is caused by some reasons for the ossification of the posterior longitudinal ligament. Since the posterior longitudinal ligament is located on the anterior wall of the spinal canal, and there is a very important spinal cord in the cervical spinal canal. Once the ossification of the posterior longitudinal ligament causes stenosis of the cervical spinal canal, it will compress the spinal cord, resulting in some symptoms of limb sensation, motor disorders and autonomic nerve function disorders. In more severe cases, it will directly cause paralysis. Moreover, the number of patients with ossification of the posterior longitudinal ligament of the cervical spine is increasing, and the effective treatment of ossification of the posterior longitudinal ligament of the cervical spine has become the focus of attention of orthopedic surgeons.
[0003] Clinically, the anterior cervical anterior longitudinal ligament ossified complex advancement (ACAF) technique is generally used to treat ossification of the posterior longitudinal ligament of the cervical spine. In the ACAF operation, a certain thickness of the anterior bone mass of the vertebra to be treated needs to be removed. The specific thickness value to be removed is the thickness value of the ossified mass behind the vertebra. If there are multiple ossified masses behind the vertebra to be treated, the anterior bone mass of the vertebra is removed according to the value of the thickest ossified mass. For example, if the thickest ossified mass is 3 mm, 3 mm thickness of the anterior bone mass of the vertebra needs to be removed. The thicker the ossified mass, the more anterior bone mass of the vertebra needs to be removed. And the anterior bone cortex of the vertebra is the place with greater strength on the vertebra. After removing the anterior bone cortex of the vertebra, the lifting screw only acts on the cancellous bone of the vertebra for lifting. Due to the low hardness of the cancellous bone of the vertebra, the holding force of the lifting screw is very weak, and it is very easy to cause the failure of lifting the vertebral ossified complex. Summary of the Invention
[0004] Therefore, an anterior cervical spine lifting method and an anterior cervical spine lifting fixing plate are needed to solve the problem of difficult vertebral body lifting in the ACAF operation.
[0005] To achieve the above object, the inventor provides an anterior cervical spine lifting fixing plate, including an anterior cervical spine lifting fixing plate body. The anterior cervical spine lifting fixing plate body is in a long strip structure. A plurality of lifting holes are opened in the middle of the anterior cervical spine lifting fixing plate body. Fixing parts are provided at both ends of the anterior cervical spine lifting fixing plate body, and fixing holes are obliquely provided on the fixing parts;
[0006] A bending part made of a bendable material is provided between the lifting hole and the fixing hole. After bending, the anterior cervical spine lifting fixing plate forms a "冂"-shaped structure.
[0007] Further, the fixing part can be bent around the bending part to the same side of the anterior cervical spine lifting fixing plate body to form a clamping space, and the fixing hole inclines from the outside of the clamping space to the inside of the clamping space, and the central axis of the fixing hole forms an acute angle with the side of the fixing part close to the anterior cervical spine lifting fixing plate body.
[0008] Further, the number of the fixing holes is more than two.
[0009] Further, the lifting holes are arranged in an array along the length direction of the anterior cervical spine lifting fixing plate body.
[0010] Further, the thickness of the anterior cervical spine lifting fixing plate body is 0.5 - 1.5 mm.
[0011] Further, the length value of the anterior cervical spine lifting fixing plate is 10 - 100 mm.
[0012] Further, the distance between adjacent lifting holes is 1.5 - 3 mm.
[0013] Further, the aperture diameters of the fixing holes and the lifting holes are 2 - 4 mm.
[0014] The inventor also provides an anterior cervical spine lifting method, which uses the anterior cervical spine lifting fixing plate in the above technical solution, and includes the following steps:
[0015] S01, Process the intervertebral space;
[0016] S02, Remove the bone mass in the front part of the vertebral body;
[0017] S03, Pre-groove on both sides of the vertebral body, and the groove depth reaches the bone mass layer of the posterior wall of the vertebral body;
[0018] S04, Bend the fixing parts at both ends of the anterior cervical spine lifting fixing plate towards the same side of the anterior cervical spine lifting fixing plate body to form a "冂"-shaped structure, insert the two fixing parts of the anterior cervical spine lifting fixing plate into the intervertebral spaces on both sides of the vertebral body, and place the anterior cervical spine lifting fixing plate across the vertebral body;
[0019] S05, Incline and screw in the connecting piece from the intervertebral space to connect the fixing part and the vertebral body;
[0020] S06, Install the intervertebral fusion device in the grooves on both sides of the vertebral body;
[0021] S07, Install the anterior cervical spine lifting fixing plate assembly outside the anterior cervical spine lifting fixing plate, install the lifting screw, and the lifting screw is adapted to the anterior cervical spine lifting fixing plate assembly and the lifting holes on the anterior cervical spine lifting fixing plate in sequence, or the lifting screw is adapted to the anterior cervical spine lifting fixing plate assembly and the intervertebral fusion device in sequence;
[0022] S08, remove the remaining posterior wall of the vertebral body from the bottom of the grooves on both sides of the vertebral body, and free the ossification complex of the vertebral body;
[0023] S09, pull the screw up gradually in stages until the lifting is complete;
[0024] S10, the anterior cervical spine lifting fixation plate assembly is locked to the lifting hole on the anterior cervical spine lifting fixation plate by the locking element.
[0025] Furthermore, in step S04, the anterior cervical vertebral traction fixation plate is positioned across the middle of the vertebral body.
[0026] Unlike existing technologies, the above-mentioned technical solution has the following advantages: The anterior cervical traction fixation plate in this application can be directly fixed to the vertebral body 04. During the traction process, instead of screwing the traction screws into the vertebral body 04 from front to back, the traction force is applied to the anterior cervical traction fixation plate. The fixation part 02 of the anterior cervical traction fixation plate spans across the vertebral body 04 and is connected to the bone layer under the superior and inferior endplates of the vertebral body 04, which has a strong connection strength and can improve the success rate of traction of the free vertebral body 04 during ACAF surgery. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of a long strip structure for anterior cervical spine traction fixation plate according to this embodiment;
[0028] Figure 2 This is a schematic diagram of an I-shaped structure for anterior cervical spine traction fixation plate in this embodiment;
[0029] Figure 3 This is a schematic diagram of a cervical anterior cervical spine lifting and fixation plate after bending according to this embodiment;
[0030] Figure 4 This is a three-dimensional view of a cervical anterior traction fixation plate after bending, as described in this embodiment.
[0031] Figure 5 This is a schematic diagram of an anterior cervical spine traction fixation plate installed on the vertebral body according to this embodiment;
[0032] Figure 6 This is a schematic diagram of the lifting plate body;
[0033] Figure 7 This is a schematic diagram of a locking screw.
[0034] Explanation of reference numerals in the attached figures:
[0035] 01. The main body of the anterior cervical spine lifting and fixation plate;
[0036] 011. Lifting hole;
[0037] 012. Web portion;
[0038] 013. End plate section;
[0039] 02. Fixing part;
[0040] 021. Fixing hole;
[0041] 03. Bending section;
[0042] 04. Vertebrae;
[0043] 1. Lifting plate body;
[0044] 11. Threaded hole;
[0045] 12. The web of the lifting plate body;
[0046] 13. End plate of the lifting plate body;
[0047] 15. Connecting hole;
[0048] 2. Locking screws;
[0049] 21. Nut of the locking screw. Detailed Implementation
[0050] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.
[0051] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0052] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0053] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0054] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.
[0055] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0056] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0057] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0058] Unless otherwise clearly specified or defined, in the description of the embodiments of the present application, terms such as "installation", "connection", "attachment", "fixation", "setting", etc. shall be understood in a broad sense. For example, the "connection" may be a fixed connection, a detachable connection, or an integral setting; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection or an indirect connection through an intermediate medium; it may be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0059] Please refer to Figures 1 to 5 , in this embodiment, an anterior cervical lifting and fixing plate includes an anterior cervical lifting and fixing plate body 01. The anterior cervical lifting and fixing plate body 01 is in a strip-like structure. A plurality of lifting holes 011 are formed in the middle of the anterior cervical lifting and fixing plate body 01. Fixing parts 02 are provided at both ends of the anterior cervical lifting and fixing plate body 01, and fixing holes 021 are obliquely provided on the fixing parts ;
[0060] A bending part 03 made of a bendable material is provided between the lifting hole 011 and the fixing hole 021.
[0061] Before being used, the anterior cervical lifting and fixing plate is in a strip-like structure, that is, the two fixing parts 02 are arranged on both sides in the extending direction of the anterior cervical lifting and fixing plate body 01. Specifically, the anterior cervical lifting and fixing plate is in a cuboid strip structure or an I-shaped structure. When the anterior cervical lifting and fixing plate is in an I-shaped structure, its web part 012 is the anterior cervical lifting and fixing plate body 01, and its end plate part 013 is the fixing part 02 of the anterior cervical lifting and fixing plate. When the bending part 03 is bent, only the end plate part 013 of the I-shaped anterior cervical lifting and fixing plate is bent, so that the end plate deviates from the extending direction of the anterior cervical lifting and fixing plate body 01 after bending; or its end plate and a part of the web part 012 connected to the end plate jointly form the fixing part 02, and the bending is performed at the bending part 03 on the anterior cervical lifting and fixing plate body 01. After bending, the end plate of the I-shaped anterior cervical lifting and fixing plate and a part of the web part 012 connected to the end plate are bent together, making it deviate from the extending direction of the anterior cervical lifting and fixing plate body 01. The anterior cervical lifting and fixing plate after bending forms a "冂" - shaped structure.
[0062] The lifting hole 011 is a threaded hole, which is used to be adapted to a locking member or a lifting screw. During the process of lifting the vertebral body 04, the acting force is directly applied to the anterior cervical lifting and fixing plate through the lifting hole 011. To facilitate lifting or / and enhance the locking effect, a plurality of lifting holes 011 are provided.
[0063] The fixing holes 021 are inclinedly arranged on the fixing part 02. When the anterior cervical lifting fixing plate is in a strip-shaped structure before use, the central axis of the fixing holes 021 is not perpendicular to the length extension direction of the anterior cervical lifting fixing plate, thus forming the inclined fixing holes 021. The fixing holes 021 are through holes, counterbore holes or threaded holes. The fixing holes 021 are used to fixedly lock the anterior cervical lifting fixing plate on the vertebral body 04. When the fixing holes 021 are through holes, screws are selected to pass through the fixing holes 021 and then lock the anterior cervical lifting fixing plate on the vertebral body 04, and the nuts of the screws are set on the outside of the fixing holes 021; when the fixing holes 021 are counterbore holes, screws are selected to pass through the fixing holes 021 and then lock the anterior cervical lifting fixing plate on the vertebral body 04, and the nuts of the screws are locked into the fixing holes 021, and the nuts are flush with the outer end face of the fixing holes 021; when the fixing holes 021 are threaded holes, the external threads on the screws are adapted to the fixing holes 021, and the screws are first screwed into the fixing holes 021 and then gradually screwed into the vertebral body 04. After the anterior cervical lifting fixing plate is bent into a "冂"-shaped structure, the fixing parts 02 on both sides of the anterior cervical lifting fixing plate are inserted into the intervertebral space. Since the distance of the intervertebral space is relatively narrow, it is impossible to vertically screw the screws into the vertebral body 04, and the inclined fixing holes 021 face the outside of the cervical vertebra, which is convenient for doctors to operate.
[0064] The anterior cervical lifting fixing plate in this application can be directly fixed on the vertebral body 04. During the lifting process, the lifting force is not applied by screwing the lifting screw into the vertebral body 04 from front to back, but the lifting force is applied to the anterior cervical lifting fixing plate. The fixing part 02 of the anterior cervical lifting fixing plate straddles the vertebral body 04 and is connected to the subchondral bone layer of the upper and lower end plates of the vertebral body 04, having strong connection strength and being able to improve the success rate of lifting the free vertebral body 04 during ACAF surgery.
[0065] The material of the anterior cervical lifting fixing plate in this application is pure titanium or titanium alloy.
[0066] The bending parts 03 are arranged in two places, respectively arranged between the two fixing parts 02 and the anterior cervical lifting fixing plate body 01. The bending parts 03 are usually also made of pure titanium or titanium alloy. During use, it can be easily bent with the help of tools to form a "冂"-shaped structure.
[0067] In some embodiments, the fixing part 02 can be bent around the bending part 03 to form a clamping space on the same side as the anterior cervical lifting fixing plate body 01, and the fixing hole 021 inclines from the outside of the clamping space to the inside of the clamping space, and the central axis of the fixing hole 021 forms an acute angle with the side of the fixing part 02 close to the anterior cervical lifting fixing plate body 01. The clamping space is used for clamping outside the vertebral body 04. In some preferred embodiments, the lengths of the fixing parts 02 at both ends of the bent anterior cervical lifting fixing plate are the same, that is, when the anterior cervical lifting fixing plate with a "冂" - shaped structure is straddled on the vertebral body 04, the lengths of the fixing parts 02 that can penetrate into the intervertebral space are the same. After the anterior cervical lifting fixing plate with a "冂" - shaped structure is straddled on the vertebral body 04, the fixing hole 021 faces the outside of the intervertebral space, and the operating doctor can directly observe the position and orientation of the fixing hole 021, so as to conveniently screw the screw into the fixing hole 021 to complete the connection between the fixing part 02 of the anterior cervical lifting fixing plate and the vertebral body 04.
[0068] Specifically, in some embodiments, the angle θ between the central axis of the fixing hole 021 and the side of the fixing part 02 close to the anterior cervical lifting fixing plate body 01 is 30°, 45° or 60°.
[0069] In some embodiments, the number of the fixing holes 021 is more than two. When the anterior cervical lifting fixing plate is of an I - shaped structure, the fixing holes 021 can be arranged in an array along the length direction of the end plate; when the anterior cervical lifting fixing plate is of a cuboid strip - shaped structure, the fixing holes 021 can be arranged along the direction perpendicular to the length of the anterior cervical lifting fixing plate. If three fixing holes 0-21 are provided, the fixing holes 021 can be arranged in a triangular distribution on the fixing part 02 of the anterior cervical lifting fixing plate. <000,0152>In some embodiments, the lifting holes 011 are arranged in an array along the length direction of the anterior cervical lifting fixing plate body 01. The lifting holes 011 face the outside of the vertebral body 04, and the operating doctor can perform multiple liftings and / or lockings through the lifting screws and / or locking tools.
[0071] In some embodiments, the thickness of the anterior cervical lifting fixing plate body is 0.5 - 1.5 mm.
[0072] In some embodiments, the length value of the anterior cervical lifting fixing plate is 10 - 100 mm.
[0073] In some embodiments, the distance between adjacent lifting holes is 1.5 - 3 mm, that is, the edge distance between adjacent lifting holes is 1.5 - 3 mm.
[0074] In some embodiments, the aperture diameters of the fixing holes and the lifting holes are 1.5 - 4 mm.
[0075] The inventor also provides an anterior cervical lifting method, which uses the anterior cervical lifting fixing plate in any of the above technical solutions, and includes the following steps:
[0076] S01, Process the intervertebral space;
[0077] S02, Remove the bone mass in the anterior part of the vertebral body;
[0078] S03, Pre-groove on both sides of the vertebral body, with the groove depth reaching the bone layer of the posterior wall of the vertebral body;
[0079] S04, Bend the fixing parts at both ends of the anterior cervical lifting fixing plate towards the same side of the anterior cervical lifting fixing plate body to form a "冂" - shaped structure. The two fixing parts of the anterior cervical lifting fixing plate extend into the intervertebral spaces on both sides of the vertebral body, and the anterior cervical lifting fixing plate is straddled on the vertebral body;
[0080] S05, Inclinedly screw in the connecting piece from the intervertebral space to connect the fixing part and the vertebral body;
[0081] S06, Install the intervertebral fusion device in the grooves on both sides of the vertebral body;
[0082] S07, Install the anterior cervical lifting fixing plate assembly outside the anterior cervical lifting fixing plate, install the lifting screw, and the lifting screw is adapted to the anterior cervical lifting fixing plate assembly and the lifting hole on the anterior cervical lifting fixing plate in sequence, or the lifting screw is adapted to the anterior cervical lifting fixing plate assembly and the intervertebral fusion device in sequence;
[0083] S08, Remove the remaining posterior wall of the vertebral body at the bottom of the grooves on both sides of the vertebral body, and free the vertebral body ossification complex;
[0084] S09, Gradually lift in several steps through the lifting screw until the lifting is completed;
[0085] S10, Lock the nut of the lifting screw on the anterior cervical lifting fixing plate assembly to complete the locking.
[0086] In some embodiments, in the above step S04, the anterior cervical lifting fixing plate is straddled on the middle part of the vertebral body.
[0087] The anterior cervical lifting fixing plate assembly described in this application can be the anterior cervical lifting fixing plate assembly described in the patent with the patent number: 202222242728.8 submitted by the applicant before, or other existing anterior cervical lifting plate assemblies or anterior cervical lifting steel plates, etc.
[0088] The following is an explanation of the structure of the anterior cervical lifting plate assembly in the patent with the patent number: 202222242728.8. Please refer to Figure 6 And Figure 7 , An anterior cervical lifting plate assembly, including:
[0089] The lifting plate body 1 is I-shaped, and a plurality of threaded holes 11 are arranged on the web plate 12 of the lifting plate body, and each threaded hole 11 is arranged along the extending direction of the web plate 12 of the lifting plate body.
[0090] The locking screw 2 has an external thread on its nut 21, which is adapted to the threaded hole 11.
[0091] Both ends of the lifting plate body are provided with connecting holes 15 for connecting fixing screws. The end plate 13 of the lifting plate body 1 is also provided with a clamping plate, which is correspondingly provided with the connecting holes. The clamping plate is hinged to the end plate 13 of the lifting plate body 1, so that the clamping plate can rotate between a first position and a second position. When the clamping plate is in the second position, the clamping plate is pressed against the nut of the fixing screw.
[0092] In step S07 above, the cervical anterior cervical traction fixation plate assembly is installed as follows: The cervical anterior cervical traction plate assembly is straddled on the cervical spine, and the two end plates of the traction plate body are locked to the corresponding vertebral bodies by fixing screws. After the fixing screws are locked in place, the clamping plate is rotated so that the clamping plate is pressed against the nut of the fixing screw to prevent the fixing screw from coming off the traction plate body 1. Then, the locking screw 2 (i.e. the lifting screw) is screwed into the threaded hole 11 on the traction plate body 1 and the lifting hole on the cervical anterior cervical traction fixation plate body. During the lifting process, the screw holder is clamped under the nut 21 of the locking screw. The locking screw is rotated to lift the corresponding vertebral body so that the vertebral ossification complex will not compress the spinal cord. After the lifting is completed, the nut of the locking screw is fitted into the threaded hole 11 on the traction plate body 1.
[0093] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.
Claims
1. A cervical anterior traction fixation plate, characterized in that, It includes an anterior cervical lifting and fixing plate body, the anterior cervical lifting and fixing plate body is a strip-shaped structure, a plurality of lifting holes are provided in the middle of the anterior cervical lifting and fixing plate body, fixing parts are provided at both ends of the anterior cervical lifting and fixing plate body, and fixing holes are obliquely arranged on the fixing parts; A bending part made of a bendable material is arranged between the lifting holes and the fixing holes. After bending, the anterior cervical lifting and fixing plate forms a "冂"-shaped structure; The anterior cervical lifting and fixing plate includes the following usage steps: S01, Process the intervertebral space; S02, Remove the bone mass in the front part of the vertebral body; S03, Pre-groove on both sides of the vertebral body, and the groove depth reaches the bone mass layer of the posterior wall of the vertebral body; S04, Bend the fixing parts at both ends of the anterior cervical lifting and fixing plate towards the same side of the anterior cervical lifting and fixing plate body to form a "冂"-shaped structure. The two fixing parts of the anterior cervical lifting and fixing plate extend into the intervertebral spaces on both sides of the vertebral body, and the anterior cervical lifting and fixing plate is straddled on the vertebral body; S05, Obliquely screw the connecting piece into the intervertebral space to connect the fixing part and the vertebral body; S06, Install an intervertebral fusion device in the grooves on both sides of the vertebral body; S07, Install an anterior cervical lifting and fixing plate assembly outside the anterior cervical lifting and fixing plate, install lifting screws, and the lifting screws are adapted to the anterior cervical lifting and fixing plate assembly and the lifting holes on the anterior cervical lifting and fixing plate in sequence; S08, Remove the remaining posterior wall of the vertebral body at the bottom of the grooves on both sides of the vertebral body to free the vertebral body osteophyte complex; S09, Gradually lift in batches through the lifting screws until the lifting is completed; S10, Lock the nut of the lifting screw on the anterior cervical lifting and fixing plate assembly to complete the locking.
2. The anterior cervical spine traction fixation plate according to claim 1, characterized in that: The fixing part can be bent around the bending part to the same side of the anterior cervical lifting and fixing plate body to form a clamping space, and the fixing hole inclines from the outside of the clamping space to the inside of the clamping space, and the central axis of the fixing hole forms an acute angle with the side of the fixing part close to the anterior cervical lifting and fixing plate body.
3. The anterior cervical spine traction fixation plate according to claim 1, characterized in that: The number of the fixing holes is more than two.
4. The anterior cervical spine traction fixation plate according to claim 1, characterized in that: The lifting holes are arranged in an array along the length direction of the anterior cervical lifting and fixing plate body.
5. The anterior cervical spine traction fixation plate according to claim 1, characterized in that: The thickness of the anterior cervical lifting and fixing plate body is 0.5-1.5 mm.
6. The anterior cervical spine traction fixation plate according to claim 1, characterized in that: The length value of the anterior cervical lifting and fixing plate is 10-100 mm.
7. The anterior cervical spine traction fixation plate according to claim 1, characterized in that: The distance between adjacent lifting holes is 1.5-3 mm.
8. The anterior cervical spine traction fixation plate according to claim 1, characterized in that: The aperture diameters of the fixing holes and the lifting holes are
Citation Information
Patent Citations
Vertebral body lifting and fixing device for anterior cervical surgery
CN113813031A
Anterior cervical lifting fixing plate
CN218899641U