CN107874809A - The determination method of ankle-joint bone-culting operation guider and ankle-joint osteotomy site - Google Patents

Abstract

The invention provides a kind of determination method of ankle-joint bone-culting operation guider and ankle-joint osteotomy site.Wherein, ankle-joint bone-culting operation guider includes：Pedestal, locating rack, location structure, plate and osteotomy template.Technical scheme, which can efficiently solve osteotomy location difficulty in the prior art, causes the problem of operating difficulty is big, time-consuming.

Description

Guide device for ankle osteotomy operation and method for determining the position of ankle osteotomy

technical field

The invention relates to the field of surgical instruments, in particular to a guide device for ankle osteotomy surgery and a method for determining the position of ankle osteotomy.

Background technique

Joint replacement is a medical treatment that replaces a painful, non-functional native joint with an artificial joint. At present, it has been widely used in hip, knee and other joints. However, due to the complex structure of the ankle joint, which requires extremely high load-bearing and movement, the effect of artificial ankle joint replacement has not been ideal, and it has become an urgent problem for foot and ankle surgeons to solve.

Artificial ankle prosthesis replacement has extremely high requirements for surgeons. Without a solid foundation in foot and ankle surgery (covering the biomechanics, anatomy, and surgical techniques of the foot and ankle), it cannot be installed correctly. Those who can carry out the operation Hospitals are few and far between worldwide.

For conventional artificial ankle prosthesis replacement surgery, intraoperative positioning is the most difficult and complicated, often requiring a special external fixator for the ankle, and then repeated adjustments under the C-arm X-ray equipment to complete the surgical positioning. Hundreds of repeated adjustments are often required to achieve accurate ankle and guide pin positions, and the operation lasted more than 3 hours.

Contents of the invention

The present invention aims to provide a guide device for ankle osteotomy surgery and a method for determining the position of ankle osteotomy, so as to solve the problems in the prior art that the operation is difficult and time-consuming due to the difficulty in positioning the osteotomy.

In order to achieve the above object, according to one aspect of the present invention, a guide device for ankle osteotomy is provided, comprising: a base having a tibial mating surface and a connecting surface, a first positioning part is arranged on the connecting surface, and a The first fixing hole is provided; the positioning frame has a center frame body and a first positioning arm and a second positioning arm extending from the center frame body to both sides, the first positioning arm is provided with a second fixing hole, and the second positioning arm A third fixing hole is provided on the center frame body, and a second positioning part that cooperates with the first positioning part is provided on the center frame body; the positioning structure cooperates with the positioning frame, and the axis of the tibia is determined by the positioning frame and the positioning structure, and along the axis of the tibia The shaft rod is passed through the tibia in the direction; the inserting plate is detachably plugged and fitted with the center frame body, and the inserting direction of the inserting plate is parallel to the axis of the tibia, and the surface of the inserting plate away from the base is provided with a shaft parallel to the axis of the tibia. Positioning groove; osteotomy template, the osteotomy template is lapped on the side of the insertion plate away from the base, the osteotomy template is provided with a positioning plate, a fourth fixing hole, an alignment groove and an osteotomy groove, and the positioning plate cooperates with the positioning groove , the osteotomy template is in the position to be osteotomized when the alignment groove is opposite to the position of the shaft.

Further, the end of the first positioning arm is provided with a first through hole, and the end of the second positioning arm is provided with a second through hole, the axes of the first through hole and the second through hole are parallel to the axis of the tibia, positioning The structure includes a first locating fork, a first locating pin, and a bottom plate that is inserted into both the first locating fork and the first locating pin, the first locating fork is penetrated in the first through hole, and the first locating pin is penetrated in the second In the through hole, a first positioning hole is arranged on the bottom plate, and the shaft rod is penetrated in the tibia through the first positioning hole.

Further, the side wall of the first positioning fork is provided with at least one positioning plane, the bottom plate is provided with a first socket for passing through the first positioning fork, and the hole wall of the first socket is provided with a hole that matches the positioning plane. The limiting plane is also provided with a second jack for passing through the first positioning pin on the bottom plate.

Further, the center frame body is provided with a third through hole, and the positioning frame also includes an extension vertical plate matched with the center frame body, and a fourth through hole is arranged on the extension vertical plate, and the axes of the third through hole and the fourth through hole Both are parallel to the axis of the tibia, and the positioning structure further includes a second positioning fork and a second positioning pin, the second positioning fork is penetrated in the third through hole, and the second positioning pin is penetrated in the fourth through hole.

Further, a stopper is provided at the end of the board, and the stopper stops at one side of the center frame.

Further, the first positioning portion includes a plurality of second positioning holes arranged at intervals, and the second positioning portion includes a plurality of positioning columns corresponding to the plurality of second positioning holes.

Furthermore, the axis of the first fixing hole forms an included angle with an acute angle with the axis of the base, and the included angle with the axis of the second fixing hole forms an acute angle with the axis of the center frame.

Further, avoidance holes extending along its length are also provided on the board.

Further, the osteotomy templates are multiple sets with different sizes.

According to another aspect of the present invention, a method for determining the position of an ankle osteotomy operation is provided, which is realized by the above-mentioned guide device for ankle osteotomy surgery. The determination method includes: obtaining a base, a positioning frame and The insert plate; the base will be connected to the predetermined position of the tibia through the first fixing hole; the positioning frame will be arranged on the base through the cooperation of the first positioning part and the second positioning part, and the positioning frame will be set on the base through the second fixing hole and the third fixing hole. The positioning frame is connected to the tibia; the axis of the tibia is determined through the cooperation of the positioning structure with the positioning frame and X-ray equipment, and a shaft is inserted in the tibia along the axial direction of the tibia; the inserting plate is inserted into the center frame of the positioning frame, and the inserting plate The insertion direction of the osteotomy template is parallel to the axis of the tibia; the osteotomy template is lapped on the side of the inserting plate away from the base, and the positioning plate is inserted into the positioning groove, and the osteotomy template is moved along the positioning groove so that the alignment groove is aligned with the shaft. The positions of the rods are opposite, and the position of the osteotomy template is fixed through the fourth fixing hole, and the position corresponding to the osteotomy groove of the osteotomy template is the position to be osteotomized.

Applying the technical solution of the present invention, the customized design is based on the patient's skeletal anatomy, and the specific structure of the base, positioning frame and inserting plate is obtained according to the patient's CT data, so as to ensure the positioning through their cooperation. Specifically, the base will be connected to a predetermined position of the tibia through the first fixing hole. The positioning frame is arranged on the base through the cooperation of the first positioning part and the second positioning part, and the positioning frame is connected to the tibia through the second fixing hole and the third fixing hole. The axis of the tibia is determined through the cooperation of the positioning structure with the positioning frame and the X-ray equipment, and a shaft rod is inserted in the tibia along the axial direction of the tibia. The inserting plate is inserted into the center frame body of the positioning frame, and the inserting direction of the inserting plate is parallel to the axis of the tibia. Lap the osteotomy template on the side of the insertion plate away from the base, insert the positioning plate into the positioning groove, move the osteotomy template along the positioning groove so that the alignment groove is opposite to the position of the shaft, and pass through the fourth fixing hole The position of the osteotomy template is fixed, and the position corresponding to the osteotomy groove of the osteotomy template is the position to be osteotomized. By utilizing the guiding device of this embodiment, repeated adjustments are not required, and only one or two X-ray equipment confirmations are required. This can solve the problem of difficult osteotomy positioning, and can improve the operation speed and quality.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 shows the structure diagram except the osteotomy template of the embodiment of the ankle joint osteotomy operation guiding device according to the present invention;

Fig. 2 shows a partial schematic view of the ankle osteotomy operation guide device of Fig. 1;

Fig. 3 shows the structural schematic view of the positioning frame, inserting plate and base plate of the ankle joint osteotomy operation guiding device of Fig. 1;

Fig. 4 shows a schematic side view of the positioning frame, the insert plate and the bottom plate of Fig. 3;

Fig. 5 shows a schematic top view of the positioning frame, the insert board and the bottom plate of Fig. 3;

Fig. 6 shows the schematic diagram of the cooperation structure of the positioning frame, inserting plate and osteotomy template of Fig. 3;

Fig. 7 shows the structural representation of another angle of the positioning frame, inserting plate and osteotomy template of Fig. 6;

Figure 8 shows a schematic structural view of the positioning frame of Figure 6;

Fig. 9 shows another perspective structural schematic diagram of the positioning frame of Fig. 8;

Fig. 10 shows a schematic structural view of the base of the ankle osteotomy guide device of Fig. 1; and

FIG. 11 shows a schematic structural diagram of the board in FIG. 6 .

Wherein, the above-mentioned accompanying drawings include the following reference signs:

1, tibia; 10, base; 11, first positioning part; 12, first fixing hole; 20, positioning frame; 21, center frame body; 211, second positioning part; 212, third through hole; 22, The first positioning arm; 221, the second fixing hole; 222, the first through hole; 23, the second positioning arm; 231, the third fixing hole; 232, the second through hole; 24, the extension vertical plate; 241, the fourth Through hole; 30, shaft; 40, inserting plate; 41, positioning groove; 42, stopper; 43, avoidance hole; 50, osteotomy template; 51, positioning plate; 52, fourth fixing hole; 53, opposite Position slot; 54, osteotomy slot; 61, first positioning fork; 611, positioning plane; 62, first positioning pin; 63, bottom plate; 631, first positioning hole; 632, first jack; 633, second Jack; 64, the second positioning fork; 65, the second positioning pin; 71, the fixing nail.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

The relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authorized Specification. In all examples shown and discussed herein, any specific values should be construed as illustrative only, and not as limiting. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

As shown in FIG. 1 , FIG. 2 and FIG. 6 , the guiding device for ankle joint osteotomy in this embodiment includes: a base 10 , a positioning frame 20 , an inserting plate 40 and an osteotomy template 50 . Wherein, the base 10 has a tibial mating surface and a connecting surface, the connecting surface is provided with a first positioning portion 11 , and the base 10 is provided with a first fixing hole 12 . The positioning frame 20 has a central frame body 21 and a first positioning arm 22 and a second positioning arm 23 extending from the central frame body 21 to both sides. The first positioning arm 22 is provided with a second fixing hole 221, and the second positioning arm 23 A third fixing hole 231 is disposed on the center frame body 21 , and a second positioning portion 211 that cooperates with the first positioning portion 11 is disposed on the center frame body 21 . The positioning structure cooperates with the positioning frame 20, the axis of the tibia 1 is determined by the positioning frame 20 and the positioning structure, and the shaft 30 is passed through the tibia along the axial direction of the tibia. The inserting plate 40 is removably mated with the center frame body 21 , and the inserting direction of the inserting plate 40 is parallel to the axis of the tibia 1 . The surface of the inserting plate 40 away from the base 10 is provided with a positioning groove 41 parallel to the axis of the tibia. The osteotomy template 50 is overlapped on the side of the insertion plate 40 away from the base 10, and the osteotomy template 50 is provided with a positioning plate 51, a fourth fixing hole 52, an alignment groove 53 and an osteotomy groove 54, and the positioning plate 51 and the positioning The groove 41 cooperates, and the osteotomy template 50 is in the position to be osteotomized when the position of the alignment groove 53 is opposite to the position of the shaft rod 30 .

Applying the technical solution of this embodiment, based on the customized design of the patient's skeletal anatomy, the specific structures of the base 10, the positioning frame 20 and the inserting plate 40 can be designed to ensure the positioning through their cooperation, and finally determine the position on the osteotomy template 50. The accurate position of the osteotomy groove 54 realizes the osteotomy of the distal end of the tibia and prepares the bone for the implantation of the prosthesis. Specifically, the tibia 1 is obtained through 3D reconstruction according to the CT data of the patient, and the anatomical axis of the tibia 1 (that is, the position of the shaft rod 30 ), and the transverse plane where the anatomical axis is located (that is, the axis of the first positioning fork 61 and the first positioning pin 62 ) are found. plane) and the longitudinal plane where the anatomical axis is located (i.e. the plane where the axes of the second positioning fork 64 and the second positioning pin 65 are located) and the central plane of the ankle joint (i.e. the central plane of the positioning groove 41, which is perpendicular to the central axis of the tibia 1 ), after the osteotomy template 50 is embedded in the positioning groove 41, the position of the osteotomy template 50 can be determined, thereby realizing the positioning of the osteotomy groove 54, and finally completing the osteotomy.

After obtaining the anatomical data of the tibia 1 , the base 10 is obtained through inverse design, the base 10 will be located on the bone surface of the distal end of the tibia, and the base 10 will be connected to the predetermined position of the tibia 1 through the first fixing hole 12 . The positioning frame 20 is arranged on the base 10 through the cooperation of the first positioning part 11 and the second positioning part 211, and the positioning frame 20 is connected to the tibia 1 through the second fixing hole 221 and the third fixing hole 231. The second positioning part 211 is a stepped structure, which can limit the insertion depth of the second positioning part 211 into the first positioning part 11, thereby determining the height of the positioning frame 20 relative to the axis of the tibia. The operation is complicated, so a C-arm X-ray machine is routinely used to perform X-ray fluoroscopy during the operation to assist positioning. Although a customized design mode is used in the present invention, in order to ensure the smooth implementation of the operation, a C-arm X-ray machine is also used to confirm the position, so as to ensure that the axis plane of the first positioning fork 61 and the first positioning pin 62 is in the same plane as the first positioning pin 62. The planes where the axes of the second positioning fork 64 and the second positioning pin 65 are located intersect with the central axis of the tibia 1 , that is, where the shaft 30 is located. That is to say, it is observed by X-ray equipment that if the first positioning pin 62 overlaps with the central axis of the shaft rod 30, and the projections of the two are simultaneously located between the two forks of the first positioning fork 61 (as shown in FIG. 4 state), at this moment, the first positioning fork 61, the first positioning pin 62 and the shaft rod 30 are in the same plane; after the X-ray equipment is rotated 90 degrees, it is projected again, if the second positioning pin 65 overlaps with the central axis of the shaft rod 30, And the two projections are located between the two forks of the second positioning fork 64 at the same time, and at this time the second positioning fork 64 , the second positioning pin 65 and the shaft rod 30 are in the same plane.

During the operation, the position of the bottom plate 63 can be determined by cooperating with the positioning structure and the positioning frame 20. There is a through hole in the center of the bottom plate 63. The shaft 30 will be inserted through this through hole and run through the tibia 1. The C-arm X-ray equipment is irradiated to ensure The plane where the axes of the first positioning fork 61 and the first positioning pin 62 are located and the plane where the axes of the second positioning fork 64 and the second positioning pin 65 are located intersect with the anatomical axis of the tibia 1 , that is, where the shaft rod 30 is located. The insertion plate 40 is inserted into the center frame body 21 of the positioning frame 20 , and the insertion direction of the insertion plate 40 is parallel to the axis of the tibia 1 . The osteotomy template 50 is overlapped on the side of the insertion plate 40 away from the base 10, and the positioning plate 51 is inserted into the positioning groove 41, and the osteotomy template 50 is moved along the positioning groove 41, so that the alignment groove 53 and the shaft 30, the position of the osteotomy template 50 is fixed through the fourth fixing hole 52, and the position corresponding to the osteotomy groove 54 of the osteotomy template 50 is the position to be osteotomized. By utilizing the guiding device of this embodiment, repeated adjustments are not required, and only one or two X-ray equipment confirmations are required. This can solve the problem of difficult osteotomy positioning, and can improve the operation speed and quality.

It should be noted that: the tibial mating surface of the base 10 is designed based on the bone shape of the patient, and can achieve a perfect fit with the bone shape. The X-ray equipment preferably adopts a C-arm X-ray machine, which can realize X-ray transmission in different directions and angles during the operation. The guiding device for ankle joint osteotomy also includes a fixing nail 71 penetrated in the first fixing hole 12 , and the base 10 can be fixed by the fixing nail 71 .

As shown in FIGS. 2 to 9 , a first through hole 222 is formed at the end of the first positioning arm 22 , and a second through hole 232 is formed at the end of the second positioning arm 23 . The positions of the first through hole 222 and the second through hole 232 are obtained according to the CT data of the patient. The axes of the first through hole 222 and the second through hole 232 are parallel to the axis of the tibia 1, and the positioning structure includes the first positioning fork 61, the first positioning pin 62 and the first positioning fork 61 and the first positioning pin 62. connected to the bottom plate 63, the first positioning fork 61 is set in the first through hole 222, the first positioning pin 62 is set in the second through hole 232, the bottom plate 63 is provided with a first positioning hole 631, and the shaft 30 passes through The first positioning hole 631 is pierced in the tibia 1 . It can be confirmed by X-ray equipment that the projection of the first positioning pin 62 is between the two forks of the first positioning fork 61 (as shown in FIG. 4 ), at this time, the lateral position of the shaft 30 can be confirmed.

In order to facilitate the installation of the bottom plate 63, in this embodiment, as shown in Figure 1, Figure 2 to Figure 4, at least one positioning plane 611 is provided on the side wall of the first positioning fork 61, and a positioning plane 611 is provided on the bottom plate 63 for piercing. The first insertion hole 632 of the first positioning fork 61, the hole wall of the first insertion hole 632 is provided with a limit plane that cooperates with the positioning plane 611, and the bottom plate 63 is also provided with a second hole for passing through the first positioning pin 62. Jack 633.

As shown in Figure 1, in this embodiment, the center frame body 21 is provided with a third through hole 212, and the positioning frame 20 also includes an extension vertical plate 24 that cooperates with the center frame body 21, and the extension vertical plate 24 is provided with a third through hole 212. Four through holes 241 . The positions of the third through hole 212 and the fourth through hole 241 are obtained according to the CT data of the patient. The axes of the third through hole 212 and the fourth through hole 241 are parallel to the axis of the tibia, and the positioning structure further includes a second positioning fork 64 and a second positioning pin 65, and the second positioning fork 64 is passed through the third through hole 212 , the second positioning pin 65 passes through the fourth through hole 241 . It can be confirmed by X-ray equipment that the projection of the second positioning pin 65 is between the two forks of the second positioning fork 64 , and at this time the longitudinal position of the shaft 30 can be confirmed.

In order to further facilitate the positioning of the board 40 , as shown in FIG. 11 , a stop portion 42 is provided at the end of the board 40 , and the stop portion 42 stops against one side of the center frame body 21 .

As shown in FIG. 10 , the first positioning portion 11 includes a plurality of second positioning holes arranged at intervals, and the second positioning portion 211 includes a plurality of positioning columns corresponding to the plurality of second positioning holes.

In order to make the fixing more firm, the axis of the first fixing hole 12 forms an acute angle with the axis of the base 10 , and the second fixing hole 221 forms an acute angle with the axis of the center frame body 21 .

In order to facilitate the alignment between the osteotomy template 50 and the shaft 30 (confirmed by X-ray equipment), the insertion plate 40 is also provided with an avoidance hole 43 extending along its length. In addition, after the position of the osteotomy template 50 is confirmed, in order to facilitate the osteotomy operation, the inserting plate 40 will be disassembled from the positioning frame 20 .

In order to better adapt to different patients, the osteotomy template 50 has multiple sets of different sizes, seven sets can be set from small to large.

According to another aspect of the present invention, a method for determining the operation position of ankle joint osteotomy is also provided. Realized by the above-mentioned guide device for ankle osteotomy operation, the determination method includes the following steps:

According to the CT data of the patient, the base 10, the positioning frame 20 and the inserting plate 40 are obtained; the base 10 is connected to the predetermined position of the tibia 1 through the first fixing hole 12; the first positioning part 11 and the second positioning part 211 are matched The positioning frame 20 is arranged on the base 10, and the positioning frame 20 is connected to the tibia 1 through the second fixing hole 221 and the third fixing hole 231; the axis of the tibia 1 is determined through the positioning structure and the positioning frame 20 and X-ray equipment , and along the axial direction of the tibia, the shaft rod 30 is penetrated in the tibia; the inserting plate 40 is inserted into the center frame body 21 of the positioning frame 20, and the inserting direction of the inserting plate 40 is parallel to the axis of the tibia 1; the osteotomy template 50 is overlapped Connect to the side of the insertion plate 40 away from the base 10, and insert the positioning plate 51 into the positioning groove 41, move the osteotomy template 50 along the positioning groove 41, so that the alignment groove 53 is opposite to the shaft rod 30, and pass through the second The four fixing holes 52 fix the position of the osteotomy template 50, and the position corresponding to the osteotomy groove 54 of the osteotomy template 50 is the position to be osteotomized.

In the description of the present invention, it should be understood that orientation words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. indicate the orientation Or positional relationship is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. In the absence of a contrary description, these orientation words do not indicate or imply the device or element referred to. It must have a specific orientation or be constructed and operated in a specific orientation, so it should not be construed as limiting the protection scope of the present invention; the orientation words "inner and outer" refer to the inner and outer relative to the outline of each component itself.

For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "above" other devices or configurations would then be oriented "beneath" or "above" the other devices or configurations. under other devices or configurations”. Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. To limit the protection scope of the present invention.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A kind of 1. ankle-joint bone-culting operation guider, it is characterised in that including：

   Pedestal (10), there is shin bone mating surface and joint face, the first location division (11), the pedestal are provided with the joint face (10) the first fixing hole (12) is provided with；

   Locating rack (20), there is central frame body (21) and the first registration arm (22) extended from the central frame body (21) to both sides With the second registration arm (23), the second fixing hole (221), second registration arm (23) are provided with first registration arm (22) On be provided with the 3rd fixing hole (231), the coordinated with first location division (11) is provided with the central frame body (21) Two location divisions (211)；

   Location structure, coordinate with the locating rack (20), shin bone (1) is determined by the locating rack (20) and the location structure Axis, and axostylus axostyle (30) is worn in shin bone along the axis direction of the shin bone；

   Plate (40), with the central frame body (21) removably grafting coordinate, and the direction of insertion of the plate (40) with The diameter parallel of the shin bone (1), surface of the plate (40) away from the pedestal (10) are provided with parallel to the shin bone Axis locating slot (41)；

   Osteotomy template (50), the osteotomy template (50) are overlapped on side of the plate (40) away from the pedestal (10), institute State and location-plate (51), the 4th fixing hole (52), alignment grooves (53) and osteotomy groove (54) are provided with osteotomy template (50), it is described fixed Position plate (51) coordinates with the locating slot (41), the osteotomy mould when alignment grooves (53) are relative with the axostylus axostyle (30) position Plate (50) is in and treats osteotomy site.
2. 2. ankle-joint bone-culting operation guider according to claim 1, it is characterised in that first registration arm (22) End set have a first through hole (222), the end set of second registration arm (23) has the second through hole (232), described The axis of one through hole (222) and second through hole (232) is each parallel to the axis of the shin bone (1), the location structure bag Include the first locating fork (61), the first pilot pin (62) and with first locating fork (61), the first pilot pin (62) equal grafting Bottom plate (63), first locating fork (61) is located in the first through hole (222), and first pilot pin (62) wears In second through hole (232), the first positioning hole (631) is provided with the bottom plate (63), the axostylus axostyle (30) passes through institute The first positioning hole (631) is stated to be located in the shin bone (1).
3. 3. ankle-joint bone-culting operation guider according to claim 2, it is characterised in that first locating fork (61) Side wall on be provided with least one positioning plane (611), be provided with the bottom plate (63) for wearing first positioning First jack (632) of (61) is pitched, is provided with the hole wall of first jack (632) and coordinates with the positioning plane (611) Spacing plane, the second jack (633) for wearing first pilot pin (62) is additionally provided with the bottom plate (63).
4. 4. ankle-joint bone-culting operation guider according to claim 1, it is characterised in that on the central frame body (21) Third through-hole (212) is provided with, the locating rack (20) also includes the extension riser (24) coordinated with the central frame body (21), It is provided with fourth hole (241) on extension riser (24), the third through-hole (212) and the fourth hole (241) For axis each parallel to the axis of the shin bone, the location structure also includes the second locating fork (64) and the second pilot pin (65), Second locating fork (64) is located in the third through-hole (212), and second pilot pin (65) is located in the described 4th In through hole (241).
5. 5. ankle-joint bone-culting operation guider according to claim 1, it is characterised in that the end of the plate (40) Stopper section (42) is provided with, stopper section (42) backstop is in the side of the central frame body (21).
6. 6. ankle-joint bone-culting operation guider according to claim 1, it is characterised in that first location division (11) Including spaced multiple second positioning holes, second location division (211) is included with multiple second positioning holes one by one The multiple locating dowels being correspondingly arranged.
7. 7. ankle-joint bone-culting operation guider according to claim 1, it is characterised in that first fixing hole (12) Axis and the pedestal (10) axis angle at an acute angle, second fixing hole (221) and the central frame body (21) Axis angle at an acute angle.
8. 8. ankle-joint bone-culting operation guider according to claim 1, it is characterised in that also set on the plate (40) It is equipped with the avoid holes (43) extended along its length.
9. 9. ankle-joint bone-culting operation guider according to claim 1, it is characterised in that the osteotomy template (50) is The different more sets of size.
10. A kind of 10. determination method of ankle-joint osteotomy site, it is characterised in that by any one of claim 1 to 9 Ankle-joint bone-culting operation guider realizes that the determination method includes：

    Pedestal (10), locating rack (20) and plate (40) are obtained according to the CT data of patient；

    The pedestal (10) will be connected to the precalculated position of shin bone (1) by the first fixing hole (12)；

    Coordinated by the first location division (11) and the second location division (211) and the locating rack (20) is arranged on the pedestal (10) On, the locating rack (20) is connected on the shin bone (1) by the second fixing hole (221) and the 3rd fixing hole (231)；

    Coordinated by location structure and the locating rack (20) and X-ray equipment determines the axis of the shin bone (1), and along described The axis direction of shin bone wears axostylus axostyle (30) in shin bone；

    The central frame body (21) of plate (40) insertion locating rack (20) is interior, direction of insertion and the shin bone of the plate (40) (1) diameter parallel；

    Osteotomy template (50) is overlapped on side of the plate (40) away from the pedestal (10), and inserts location-plate (51) To in locating slot (41), along the mobile osteotomy template (50) of the locating slot (41) so that the alignment grooves (53) with it is described Axostylus axostyle (30) position is relative, fixes osteotomy template (50) position by the 4th fixing hole (52), the osteotomy template (50) position corresponding to osteotomy groove (54) is to treat osteotomy site.