CN112842494A

CN112842494A - Fibula transverse bone carrying external fixing frame device and using method thereof

Info

Publication number: CN112842494A
Application number: CN202110201281.7A
Authority: CN
Inventors: 崔邦胜
Original assignee: Shunde Hospital Of Guangzhou University Of Traditional Chinese Medicine
Current assignee: Shunde Hospital Of Guangzhou University Of Traditional Chinese Medicine
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-05-28

Abstract

The invention provides a fibula transverse bone carrying external fixing frame device which comprises a fibula carrying device, a tibia fixing device and a connecting device, wherein the fibula carrying device drives a fibula carrying frame to move synchronously through movement of an adjusting device, so that position deviation of bone blocks of a fibula cutting section is realized, the tibia fixing device comprises a tibia fixing frame and a deviation-correcting adjusting device, the deviation-correcting adjusting device can adjust the fixing positions of the tibia fixing frame and the connecting device, and the connecting device connects the fibula carrying device with the tibia fixing device. The invention also provides a using method of the fibula transverse bone carrying external fixation frame device. The invention only arranges the fixed supporting points on the tibia, reduces the number of wound surfaces on the tibia side, does not influence the bearing capacity after the tibia operation, and simultaneously arranges the bone carrying operation on the fibula side to realize transverse bone carrying of the fibula, the fibula is positioned at the deep layer of a skin fascia, the front and rear muscle groups of the fibula are wrapped, the bone carrying at the fibula end has richer capillary bases, and the effect of repairing blood circulation is better.

Description

Fibula transverse bone carrying external fixing frame device and using method thereof

Technical Field

The invention relates to the technical field of medical orthopedic instruments, in particular to a transverse fibula carrying external fixation frame device and a using method thereof.

Background

The diabetic foot has the characteristics of poor local blood circulation, low immune function and easy infection and diffusion, so the wound surface of the diabetic foot is repaired slowly and is usually not healed for a long time. The etiology of the development of diabetic foot is mainly the result of the combined action of microangiopathy and peripheral nerve entrapment. With the aging population, the incidence of diabetic foot is continuously increased, and the non-healing rate of the wound surface is higher and higher; this will develop into a serious social problem due to the lack of effective treatment. Based on the current diabetic foot treatment status, debridement and necrotic tissue removal treatment, trigeminal lysis, stem cell transplantation, lower limb vascular bypass, transverse tibia transportation technology and the like are common methods for treating the diabetes, but the above treatment modes have great difficulty in professional technical operation, high treatment cost needs to be paid, and the disease treatment requirements of all patients cannot be met fundamentally.

In recent years, the transverse tibia transportation technology is widely used for wound treatment in clinic, and particularly has unique curative effect on intractable wound and ulcer surfaces with diabetes. The transverse tibial bone transport technology is a therapy developed on the basis of the Ilizarov tension-stress method, and the therapy can slowly and continuously stretch bones, so that the cell proliferation and the biosynthesis functions are stimulated to a certain extent, the positive influence on promoting the tissue regeneration is achieved, the metabolism of new tissues is promoted to a certain extent, and the recovery of normal tissue functions is promoted.

For example, CN210056111U discloses a lateral bone transportation device, which is suitable for the actual fixation area of various patients by adjusting the horizontal spacing of the bone nails on the upper bracket, and uses the lower bracket moving up and down to perform stimulation treatment, thereby improving blood supply of lower limbs and having a simple structure. But the transverse tibia carrying technology by using the tibia external fixing device has the following defects: on one hand, the prior art transverse bone carrying device usually arranges all the fixed bone nails on the tibia, so that a plurality of wound surfaces are caused, and simultaneously intercepts a part of the tibia for transverse bone carrying; on the other hand, the tibia is positioned below the skin tissue, the coverage of the inner side skin tissue is less, and the surrounding capillaries are less, so that the angiogenesis generated by the transverse carrying of the tibia has certain limitation, and the blood circulation improvement condition of the diabetic foot is poor.

Disclosure of Invention

The invention aims to solve the problems that postoperative fracture is easy to occur, sequelae such as skin cracking and necrosis and exposed bones in a carrying area are more and blood circulation conditions are limited due to the fact that transverse bones of tibias are carried, and provides an external fixing frame device for carrying transverse bones of fibulas and a using method thereof. The fixing end is arranged on the tibia, so that the number of openings of the wound surface on the tibia side is reduced, the bearing capacity of the tibia after operation is not affected, and the bone carrying operation is arranged on the fibula side, so that transverse bone carrying of the fibula is realized. The invention can complete fibula osteotomy only by a minimally invasive incision within 5mm, further reduces the area of the wound surface, reduces wound surface infection at the fibula, reduces complications, simultaneously has richer capillary base for carrying bones at the fibula end, and has better effect of repairing blood circulation.

In order to solve the technical problems, the invention adopts the technical scheme that:

the utility model provides a horizontal bone transport external fixation frame device of fibula, includes fibula transport device, shin bone fixing device and connecting device, fibula transport device with shin bone fixing device passes through connecting device connects.

The fibula carrying device comprises a fixed seat arranged on the connecting device, a fibula carrying frame movably arranged on the fixed seat in a penetrating mode, and an adjusting device arranged on the fixed seat and used for adjusting the fibula carrying frame to move relative to the fixed seat.

Further, the fibula carrying frame comprises an adjusting screw rod vertically penetrating through the fixed seat, a moving block fixedly connected to the adjusting screw rod, and a fibula fixing rod arranged on the moving block; the adjusting device comprises an adjusting nut, the adjusting nut is sleeved on the adjusting screw rod and movably connected with the fixing seat, and the adjusting nut is provided with threads matched with the adjusting screw rod.

Like this, adjusting screw and movable block are connected and are formed firm T shape structure, and rotation through adjusting nut drives adjusting screw and moves along the axis and drive the movable block and be close to perpendicularly or keep away from along adjusting screw's direction for the fixing base, and the fibula dead lever is being fixed connection the bone block of fibula osteotomy section, and the removal of movable block drives the synchronous translation of fibula dead lever to realize the horizontal handling process of bone block of fibula osteotomy section.

Furthermore, the fibula fixing rod comprises two fibula fixing spicules, the diameter of each fibula fixing spicule is 1.7mm-2.5mm, threads are arranged at one end of each fibula fixing spicule, and the fibula fixing spicules are parallel to the adjusting screw rods. Therefore, the diameter of the fibula fixing spicule is small, fibula osteotomy can be completed only through a minimally invasive incision within 5mm, the generated wound surface is small, and postoperative wound surface sequelae can be greatly reduced.

Furthermore, the position on the fixed seat corresponding to the adjusting screw rod is also provided with a fastening bolt for locking the adjusting screw rod.

It should be noted that the fibula fixing spicule may also penetrate through the fixing seat and be slidably connected with the fixing seat, the number of the fastening bolts may be one or more, and the fastening bolts are respectively used for fixing the adjusting screw and the fibula fixing spicule, which does not affect the achievement of the object of the present invention.

Like this, fastening bolt is at the in-process of the horizontal transport position adjustment of fibula, because patient can produce vibrations and collide with when daily activity, and fastening bolt can confirm that the relative position of each adapting unit on the fixing base is stable, and the precision that the bone piece transport of fibula osteotomy section was pull and is removed can not receive the influence.

Furthermore, the tibia fixing device comprises a tibia fixing frame and a deviation rectifying and adjusting device arranged on the tibia fixing frame, and the deviation rectifying and adjusting device is connected with the connecting device.

Furthermore, the tibia fixing frame comprises two tibia fixing spicules, the diameter of each tibia fixing spicule is 3.0mm-3.5mm, one end of each tibia fixing spicule is provided with a thread, and the two tibia fixing spicules are parallel to each other; the correcting and adjusting device comprises a connecting rod and a plurality of fixing clamps movably arranged on the connecting rod, and the fixing clamps are respectively connected with the tibia fixing spicules and the connecting device. Therefore, the tibia fixing bone needle is locked into a proper position of the tibia through one end with threads, the diameter of the tibia fixing bone needle can generate enough supporting force, the tibia fixing bone needle is connected through the deviation rectifying adjusting device to form a tibia end rigid supporting bracket, the tibia can provide enough supporting force, and a stress supporting point is provided for the fibula carrying device; meanwhile, the correcting device can adjust the fixing positions of the tibia fixing bone needle and the connecting device according to actual operation requirements, and the optimal installation position is determined through correcting fine adjustment.

Further, the connecting device comprises two arc-shaped round rods, and the central angle of each arc-shaped round rod is 70-95 degrees. Like this, the one end of two arc pole is fixed in the fixing base both ends among the fibula handling device, and the other end of two arc pole is fixed on the connecting rod through deviation correcting device's fixed clamp, forms arc space support, and on the certain angle of arc pole can be better transmits the holding power of shin end to the handling device of fibula end, simultaneously, different angles can be applicable to the shank situation of different diseases.

It should be noted that, the position of the tibia end that is provided with the tibia fixing device, which generates the wound surface, is only the locking inlet of the tibia fixing frame, the tibia end supporting force extends to the bone block upper side of the fibula osteotomy section on the other side through the connecting device, the tibia fixing device is used as the fulcrum of the traction support of the fibula transverse bone carrying device, the fibula carrying frame is used as the carrying device, the problem that the operation wound surface and the osteotomy section are all located on the tibia side in the past is avoided, and the bearing capacity of the postoperative tibia is not affected.

The invention also provides a using method of the fibula transverse bone carrying external fixing frame device, which specifically comprises the following steps:

and S1 device installation: firstly, selecting a proper fibula position at one end with threads of a fibula fixing rod to be vertically locked into the surface of the fibula, adopting a micro osteotome to perform fibula osteotomy at the outer side ends of the upper end and the lower end of the fibula fixing rod locking position, then fixedly connecting the fibula fixing rod and an adjusting screw rod with a moving block in sequence, generally adopting a flat head pin to fixedly connect the adjusting screw rod and the moving block to form a fibula conveying frame, and then sleeving a fixed seat and an adjusting nut on the adjusting screw rod in sequence to finish the assembly of the fibula conveying device; then, vertically locking the threaded end of the tibia fixing frame into the surface of the tibia by selecting a proper position of the tibia, and adjusting a proper position of the other end of the tibia fixing frame by a fixing clamp to be fixed on a connecting rod to complete the assembly of the tibia fixing device; finally, one end of the connecting device is fixedly connected to the fixed seat, and the other end of the connecting device is adjusted to be in a proper position through the fixing clamp and is fixed on the connecting rod, so that a final transverse fibula carrying external fixing frame device is formed;

s2 bone block carrying: rotating the adjusting nut to enable the fibula conveying frame to move a certain distance towards the direction far away from the fibula to finish one-time offset, fixing the offset position of the adjusting screw by adopting a fastening bolt, repeating conveying operation for a plurality of times at fixed time intervals, enabling the offset distance to be the same each time, enabling bone blocks of the fibula osteotomy section to be outwards pulled relative to the fibula along with the fibula conveying frame, stopping conveying when blood transportation repair is finished, and maintaining for a certain number of days;

s3 bone block removal: moving the bone blocks of the fibula osteotomy section back to the original position according to the reverse operation step of the step S2;

and S4, disassembling the device: the fibula transverse bone carrying external fixing frame device is disassembled, and the fibula transverse bone carrying external fixing frame device is stored for next use.

It should be noted that, because the fibula is located the deep layer of skin fascia, muscle crowd parcel around the fibula, fibula department bone transport has abundanter capillary base, and it is better to restore the blood circulation effect, is difficult to appear the infection simultaneously, and on the other hand fibula is only bearing 1/7's limbs weight under the heavy burden condition, is not main heavy burden skeleton, does not influence heavy burden walking function after the fibula cuts off, can go about the activity in the lower reaches in early stage, has very strong practicality.

Compared with the prior art, the invention has the beneficial effects that:

(1) compared with the conventional transverse bone carrying device on the tibia side, the transverse bone carrying device only implants two tibia fixing bone pins as supporting points on the tibia side, and the transverse bone carrying external fixing frame of the tibia extends to the fibula side to provide traction support, so that the tibia of a main bearing bone is less damaged, and the wound surface of skin tissues on the surface of the tibia is less;

(2) according to the invention, transverse bone carrying is carried out at the fibula side, the fibula carrying device acts on the cut bone of the fibula, the fibula fixing rod on the moving block is driven to move synchronously through the rotation of the adjusting nut, the carrying distance of the fibula cut bone is adjusted, the control is accurate, and the operation is convenient;

(3) the fibula is cut at the fibula side, the diameter of the adopted fibula fixing spicule is small, the fibula cutting can be completed only through a minimally invasive incision within 5mm, the wound surface area is further reduced, wound surface infection at the fibula is reduced, and complications are reduced.

Drawings

FIG. 1 is a schematic structural view of a transverse fibula-carrying external fixator apparatus according to the present invention;

FIG. 2 is a schematic structural view of a fibula handling device of the present invention;

fig. 3 is a schematic diagram of the application of the present invention.

The graphic symbols are illustrated as follows:

1-arc round bar, 2-connecting rod, 3-tibia fixing spicule, 4-fibula fixing spicule, 5-fixing clamp, 6-fixing seat, 7-moving block, 8-adjusting nut, 9-adjusting screw, 10-flat head pin, 11-nut and 12-fastening bolt.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only, and not in the form of actual drawings, and should not be construed as limiting the invention; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the present invention, unless otherwise explicitly specified or limited, the terms "assembled", "connected" and "connected" should be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The following detailed description of specific embodiments of the invention refers to the accompanying drawings.

Example 1

As shown in fig. 1 and 2, the fibula transverse bone carrying external fixing frame device comprises a fibula carrying device, a tibia fixing device and a connecting device, wherein the fibula carrying device is connected with the tibia fixing device through the connecting device.

In this embodiment, the fibula carrying device includes a fixing base 6 disposed on the connecting device, a fibula carrying frame movably disposed on the fixing base 6, and an adjusting device disposed on the fixing base 6 and used for adjusting the fibula carrying frame to move relative to the fixing base 6.

In this embodiment, the fibula carrying frame comprises an adjusting screw 9 vertically penetrating through the fixed seat 6, a moving block 7 fixedly connected to the adjusting screw 9, and a fibula fixing rod arranged on the moving block 7;

the adjusting device of this embodiment includes adjusting nut 8, and adjusting nut 8 runs through adjusting screw 9 and swing joint is on fixing base 6, and adjusting nut 8 is equipped with the screw thread with adjusting screw 9 matched with.

Like this, adjusting screw 9 is connected with movable block 7 and forms firm T shape structure, and rotation through adjusting nut 8 drives adjusting screw 9 and removes along the axis, drives movable block 7 simultaneously and is close to or keeps away from along adjusting screw 9's direction perpendicularly for fixing base 6, and fibula dead lever fixed connection is the bone block of fibula osteotomy section, and the removal of movable block 7 drives the synchronous translation of fibula dead lever to realize the horizontal handling process of bone block of fibula osteotomy section.

In this embodiment, the fibula dead lever is two fixed spicules of fibula 4, and the diameter of the fixed spicule of fibula 4 is 2.0mm, and the one end of the fixed spicule of fibula 4 is equipped with the screw thread and the fixed spicule of fibula 4 is on a parallel with adjusting screw 9, and two fixed spicules of fibula 4 run through fixing base 6 simultaneously, with 6 sliding connection of fixing base. Therefore, the diameter of the fibula fixing spicule 4 is small, fibula osteotomy can be completed only through a minimally invasive incision within 5mm, the generated wound surface is small, and postoperative wound surface sequelae can be greatly reduced.

In this embodiment, three fastening bolts 12 are further disposed on the fixing base 6 at positions corresponding to the adjusting screw 9 and the fibula fixing spicule 4. Like this, fastening bolt 12 is at the in-process of the horizontal transport position adjustment of fibula, because patient can produce vibrations and collide with when daily activity, and fastening bolt 12 can confirm that the relative position of each adapting unit on fixing base 6 is stable, and the precision that the bone piece transport of fibula osteotomy section was pull and is removed can not receive the influence.

In this embodiment, the tibia fixing device includes a tibia fixing frame and a deviation-correcting adjusting device disposed on the tibia fixing frame, and the deviation-correcting adjusting device is connected to the connecting device. The tibia fixing frame comprises two tibia fixing spicules 3, the diameter of each tibia fixing spicule 3 is 3.3mm, and one end of each tibia fixing spicule 3 is provided with threads and is parallel to each other; the deviation rectifying and adjusting device comprises a connecting rod 2 and a plurality of fixing clamps 5 movably arranged on the connecting rod 2, and the fixing clamps 5 are respectively connected with a tibia fixing spicule 3 and a connecting device.

Therefore, the tibia fixing bone needle 3 is locked into a proper position of the tibia through one end with threads, the diameter of the tibia fixing bone needle 3 can generate enough supporting force, the tibia fixing bone needle 3 is connected through the deviation rectifying adjusting device to form a tibia end rigid supporting bracket, the tibia can provide enough supporting force, and a stress supporting point is provided for the tibia carrying device; meanwhile, the correcting device can adjust the fixed positions of the tibia fixing frame and the connecting device according to actual operation requirements, and the optimal installation position can be determined through correcting fine adjustment.

In this embodiment, the connecting device comprises two arc-shaped round rods 1, and the central angle of the arc-shaped round rods 1 is 90 degrees.

Like this, the one end of two arc round bars 1 is fixed in 6 both ends of fixing base among the fibula handling device, and the other end of two arc round bars 2 is fixed in connecting rod 2 on through deviation correcting device's fixation clamp 5, forms the arc space support, and certain angle of arc round bar 2 can be better transmit the holding power of shin end to the handling device of fibula end on, simultaneously, different angles can be applicable to the shank situation of different diseases.

It should be noted that, the tibia fixing device that the tibia end set up, the surface of a wound are only the lock entry of tibia mount, the tibia end supporting force extends to the opposite side fibula osteotomy section top through connecting device, as the traction support of the horizontal fibula bone handling device, the problem that the operation surface of a wound and the osteotomy section are all located on the tibia side in the past is avoided, and the bearing capacity of the operation tibia will not be influenced.

Example 2

The embodiment is similar to embodiment 1, and is different from embodiment 1 in that the diameter of the fibula fixing bone needle 4 is 1.7mm, the diameter of the tibia fixing bone needle 3 is 3.0mm, the central angle of the arc-shaped round rod 1 is 70 °, and the structure and the working principle of other parts of the embodiment are the same as those of embodiment 1.

Example 3

The embodiment is similar to embodiment 1, and is different from embodiment 1 in that the diameter of the fibula fixing bone needle 4 is 2.5mm, the diameter of the tibia fixing bone needle 3 is 3.5mm, the central angle of the arc-shaped round rod 1 is 95 °, and the structure and the working principle of other parts of the embodiment are the same as those of embodiment 1.

Example 4

As shown in fig. 3, this embodiment provides a method for using the fibula transverse bone transportation external fixation frame device according to any one of embodiments 1 to 3, which includes the following specific steps:

and S1 device installation: firstly, vertically locking a fibula at a proper position of a threaded end of a fibula fixing bone needle 4 into the surface of the fibula, adopting a miniature osteotomy device to perform fibula osteotomy at the outer side ends of the upper end and the lower end of the locked position of the fibula fixing bone needle 4, generally, the distance between two osteotomy lines is 8cm, fixedly connecting one end of an adjusting screw 9 to a moving block 7 through a flat-head pin 10, then fixedly connecting the fibula fixing bone needle 4 and the moving block 7 to form a fibula carrying frame, and sequentially sleeving a fixed seat 6 and an adjusting nut 8 on the adjusting screw 9 to complete the assembly of the fibula carrying device;

then, vertically locking the threaded end of the tibia fixing spicule 3 into the surface of the tibia by selecting a proper position of the tibia, adjusting the proper position of the other end of the tibia fixing spicule 3 by a fixing clamp 5, and fixing the other end of the tibia fixing spicule on a connecting rod 2 to complete the assembly of the tibia fixing device;

finally, one ends of the two arc-shaped round rods 1 are fixedly connected to the two ends of the fixed seat 6 through nuts 11, and the other ends of the two arc-shaped round rods 1 are adjusted to be proper positions through fixing clamps 5 and fixed on the connecting rods 2, so that a final transverse fibula bone carrying external fixing frame device is formed;

s2 bone block carrying: the adjustment nut 9 is rotated to enable the fibula conveying frame to move a certain distance towards the direction far away from the fibula to finish one-time offset, the fastening bolt 12 is adopted to fix the offset position of the adjustment screw 9, conveying operation is repeated for multiple times at fixed time intervals, the offset distance of each time is the same, generally speaking, the repeated operation is needed for 3-5 times, the offset distance of each time is 0.25-0.30 mm, bone blocks of the fibula osteotomy section are outwards pulled relative to the fibula along with the fibula conveying frame, when blood transportation repair is finished, conveying is stopped, certain days are maintained, and generally 5-7 days are maintained;

s3 bone block removal: moving the bone blocks of the fibula osteotomy section back to the original position according to the reverse operation step of the step S2 to complete a moving period;

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a horizontal bone transport external fixation frame device of fibula, its characterized in that includes fibula transport device, shin bone fixing device and connecting device, fibula transport device with shin bone fixing device passes through connecting device connects.

2. The fibula transverse bone carrying external fixing frame device according to claim 1, wherein the fibula carrying device comprises a fixing seat (6) disposed on the connecting device, a fibula carrying frame movably disposed on the fixing seat (6), and an adjusting device disposed on the fixing seat (6) and used for adjusting the fibula carrying frame to move relative to the fixing seat.

3. The fibula transverse bone carrying external fixation frame device according to claim 2, wherein the fibula carrying frame comprises an adjusting screw (9) vertically penetrating through the fixed seat (6), a moving block (7) fixedly connected to the adjusting screw (9), and a fibula fixing rod arranged on the moving block (7);

the adjusting device comprises an adjusting nut (8), the adjusting nut (8) is sleeved on the adjusting screw rod (9) and movably connected with the fixing seat (6), and the adjusting nut (8) is provided with threads matched with the adjusting screw rod (9).

4. The fibula transverse bone carrying external fixation frame device according to claim 3, wherein the fibula fixation rod comprises two fibula fixation spicules (4), the diameter of the fibula fixation spicules (4) is 1.7mm-2.5mm, one end of the fibula fixation spicules (4) is provided with a thread and the fibula fixation spicules (4) are parallel to the adjusting screw (9).

5. The fibular transverse bone carrying external fixation frame device according to claim 4, wherein a fastening bolt (12) for locking the adjusting screw (9) is further arranged on the fixed seat (6) at a position corresponding to the adjusting screw (9).

6. The fibula transverse bone carrying external fixator apparatus according to claim 1, wherein the tibia fixing apparatus comprises a tibia fixing frame and a deviation-correcting adjusting apparatus arranged on the tibia fixing frame, and the deviation-correcting adjusting apparatus is connected to the connecting apparatus.

7. The fibular transverse bone handling external fixator apparatus according to claim 6, wherein the tibial fixator comprises two tibial fixation spicules (3), the diameter of the tibial fixation spicules (3) is 3.0mm-3.5mm, one end of the tibial fixation spicules (3) is provided with a thread and the two tibial fixation spicules (3) are parallel to each other.

8. The fibula transverse bone carrying external fixation frame device according to claim 7, wherein the deviation correcting and adjusting device comprises a connecting rod (2) and a plurality of fixing clamps (5) movably arranged on the connecting rod, and the fixing clamps (5) are respectively connected with the tibia fixing spicules (3) and the connecting device.

9. A fibular transverse bone handling external fixator apparatus as claimed in claim 1 wherein said connection means comprises two arcuate bars (1), said arcuate bars (1) having a central angle of 70 ° to 95 °.

10. The use method of the fibula transverse bone carrying external fixing frame device is characterized by comprising the following steps:

and S1 device installation: firstly, selecting a proper fibula position at one end with threads of a fibula fixing rod to be vertically locked into the surface of the fibula, adopting a micro osteotome to perform fibula osteotomy at the outer side ends of the upper end and the lower end of the fibula fixing rod locking position, then fixedly connecting the fibula fixing rod and an adjusting screw rod (9) with a moving block (7) in sequence to form a fibula conveying frame, and then sleeving a fixing seat (6) and an adjusting nut (8) on the adjusting screw rod (9) in sequence to complete the assembly of the fibula conveying device; then, vertically locking the threaded end of the tibia fixing frame into the surface of the tibia by selecting a proper position of the tibia, adjusting the proper position of the other end of the tibia fixing frame through a fixing clamp (5) and fixing the other end of the tibia fixing frame on a connecting rod (2) to complete the assembly of the tibia fixing device; finally, one end of the connecting device is fixedly connected to the fixed seat (6), and the other end of the connecting device is adjusted to be in a proper position through the fixing clamp (5) and is fixed on the connecting rod (2), so that a final fibula transverse bone carrying external fixing frame device is formed;

s2 bone block carrying: rotating the adjusting nut (8) to enable the fibula conveying frame to move a certain distance towards the direction far away from the fibula, so that one-time offset is completed, fixing the offset position of the adjusting screw (9) by adopting a fastening bolt (12), repeating conveying operation for multiple times at fixed time intervals, wherein the offset distance is the same every time, bone blocks of the fibula osteotomy section are outwards pulled along with the fibula conveying frame relative to the position of the fibula, and when the blood circulation repair is completed, stopping conveying and maintaining for a certain number of days;