Wedge-shaped osteotomy operation guider for high-position inner side opening of tibia

Abstract

The invention discloses a tibia high-position inner side open wedge-shaped osteotomy operation guider, and belongs to the technical field of medical instruments, the tibia high-position inner side open wedge-shaped osteotomy operation guider comprises a fibula tip positioning frame, a tibia positioning frame is arranged on the right side of the outer side wall of the fibula tip positioning frame, and an adjusting groove is formed in the front surface of the tibia positioning frame; the outer side wall of the fibula tip positioning frame is slidably connected with the interior of the adjusting groove. In the prior art, fluoroscopic examination and guide needle positioning adjustment need to be conducted frequently by means of imaging equipment, the operation time is prolonged, radiation exposure of patients and medical staff is increased, the extension distance of a telescopic sleeve is observed through two first scale marks, and therefore the total length of the cut tibia is calculated, and the total length of the cut tibia is calculated. The guide needle can be accurately positioned at a time, the number of times of repeated adjustment and fluoroscopy in an operation is greatly reduced, the operation time is remarkably shortened, and the anesthesia time of a patient and the risk in the operation can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a surgical guide for high medial tibial open wedge osteotomy. Background Art

[0002] High medial tibial opening wedge osteotomy (HTO) surgery is an effective method for treating genu varum (genu valgum) and related osteoarthritis. Genu varum is usually caused by abnormal tibial axis, which increases the medial load of the knee joint, thereby inducing or aggravating osteoarthritis. HTO surgery aims to redistribute the load of the knee joint by adjusting the force line of the tibia, thereby reducing the pressure on the medial joint surface, improving joint function, and slowing the progression of osteoarthritis. In recent years, the introduction of arthroscopic technology has made HTO surgery more minimally invasive. Through arthroscopic technology, doctors can operate under smaller incisions, which not only reduces trauma to patients, but also shortens postoperative recovery time. Despite this, arthroscopic surgery still faces some technical challenges, especially in the accurate positioning of the guide pin and the control of osteotomy depth; During HTO surgery, accurate positioning of the guide pin is crucial to the success of the operation. Traditional manual positioning methods are easily affected by the operator's experience and may lead to deviations in the position and angle of the guide pin. At the same time, due to the difficulty in controlling the guide pin positioning and osteotomy depth, traditional HTO surgery often requires a longer operation time, which increases the patient's risk and the possibility of postoperative complications. Although minimally invasive technology can shorten the recovery time, how to further improve surgical accuracy and reduce the number of intraoperative adjustments remains a key direction for current technological development. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a solution to the problem that the traditional method of manually positioning the guide pin is easily affected by the operator's experience and may cause deviations in the position and angle of the guide pin; another purpose of the present invention is to provide a solution to the problem that due to the difficulty in controlling the positioning of the guide pin and the depth of osteotomy, traditional HTO surgery often requires a long operation time, which increases the risk to the patient and the possibility of postoperative complications.

[0004] Technical solution: A surgical guide for high medial tibial open wedge osteotomy, comprising a fibula tip positioning frame, a tibial positioning frame is arranged on the right side of the outer wall of the fibula tip positioning frame, an adjustment groove is arranged on the front surface of the tibial positioning frame, and the outer wall of the fibula tip positioning frame is slidably connected to the inside of the adjustment groove; The bottom end of the tibial positioning frame is fixedly connected with a positioning sleeve 1, the lower surface of the positioning sleeve 1 is fixedly connected with an adjustment box, a positioning sleeve 2 is arranged below the adjustment box, the right sides of the positioning sleeve 1 and the positioning sleeve 2 are provided with a through-type threaded hole, the interiors of the two threaded holes are threadedly connected with a telescopic sleeve, the left sides of the two telescopic sleeves are fixedly connected with a tibial positioning head, the right ends of the two telescopic sleeves are fixedly connected with an adjustment handle 1, and the left tip of the fibula tip positioning frame is fixedly connected with a fibula tip positioning head.

[0005] Furthermore, two brackets are fixedly connected to the upper surface of the fibula tip positioning frame, and the top ends of the two brackets are commonly fixedly connected to a guide fixture, a sliding cavity is provided inside the guide fixture, a guide needle fixing arm is slidably connected inside the sliding cavity, the right side of the guide needle fixing arm extends to the right side of the fibula tip positioning frame and is fixedly connected to an adjustment sleeve, and a guide needle fixing box is provided below the adjustment sleeve.

[0006] Furthermore, a through circular hole is provided on the right side of the guide needle fixing box, an adjustment handle 2 is provided on the lower surface of the guide needle fixing box, a screw rod 1 is fixedly connected at the center of the upper surface of the adjustment handle 2, the top end of the screw rod 1 extends to the inside of the circular hole, and an arc-shaped pressure plate is provided, the outer wall of the screw rod 1 is threadedly connected to the inside of the guide needle fixing box, and through needle entry holes are provided on the right sides of the two adjustment handles 1 and the left sides of the two tibial positioning heads respectively.

[0007] Furthermore, the outer side walls of the two telescopic sleeves are both provided with a scale line one.

[0008] Furthermore, an adjusting handle three is provided above the adjusting sleeve, a screw rod two is fixedly connected at the center of the lower surface of the adjusting handle three, a movable plate is slidably connected inside the adjusting sleeve, an extension rod is fixedly connected to the lower surface of the movable plate, the bottom end of the extension rod extends to the bottom of the adjusting sleeve and is fixedly connected to the upper surface of the guide needle fixing box, and the bottom end of the screw rod two is rotatably connected to the center of the upper surface of the movable plate via a rotating shaft.

[0009] Furthermore, the inner upper surface and the inner lower surface of the adjusting box are rotatably connected with a screw rod three through a rotating shaft, the outer wall of the screw rod three is threadedly connected with a sliding plate, the lower surface of the sliding plate is fixedly connected with a hollow support tube, the lower surface of the hollow support tube is fixedly connected to the upper surface of the positioning sleeve two, an adjusting handle four is provided above the front surface of the adjusting box, a transmission rod is fixedly connected at the center of the rear surface of the adjusting handle four, the rear end of the transmission rod extends to the interior of the adjusting box and is fixedly connected with a bevel gear one, a bevel gear two is fixedly connected above the outer wall of the screw rod three, and the outer wall of the bevel gear one is meshingly connected with the outer wall of the bevel gear two.

[0010] Furthermore, a through transverse groove is provided on the inner upper surface of the sliding cavity, a second scale line is provided on the upper surface of the guide fixture and located behind the transverse groove, a pointer is fixedly connected to the upper surface of the guide needle fixing arm and located inside the sliding cavity, and the upper surface of the pointer passes through the transverse groove.

[0011] Furthermore, a limiting plate is fixedly connected to the inner side wall of the regulating box and is located above the sliding plate.

[0012] Furthermore, the left sides of the two tibia positioning heads and the right side of the fibula tip positioning head are both thorn-shaped structures.

[0013] Beneficial effects: The prior art requires frequent fluoroscopic examination and guide needle positioning adjustment by imaging equipment, which not only prolongs the operation time, but also increases the radiation exposure of patients and medical staff. The present invention uses two scale lines to observe the extension distance of the telescopic sleeve, thereby calculating the total length of the cut tibia, so that the guide needle can be accurately positioned at one time, greatly reducing the number of repeated adjustments and fluoroscopy during the operation, thereby significantly shortening the operation time, helping to reduce the patient's anesthesia time and intraoperative risks, reducing the probability of postoperative complications, and improving the overall surgical effect; The present invention ensures that the two guide needles are inserted in parallel by setting the positioning sleeve 1, the positioning sleeve 2 and the guide needle fixing arm to be parallel to each other. The precision machining of the parallel needle holes and the sliding flexibility of the guide needle fixing arm enable the doctor to accurately adjust the insertion points and angles of the two guide needles, thereby ensuring the parallelism between the two guide needles, thereby effectively avoiding the uneven osteotomy surface caused by the non-parallel guide needles, ensuring the postoperative force line adjustment effect, and reducing the occurrence of postoperative complications. The present invention controls the movement of the pointer by moving the guide needle fixing arm and coordinating with the second scale line, so that the doctor can accurately control the depth of the guide needle during the insertion process. Through the accurate depth reading of the second scale line, the doctor can ensure that the depth of the guide needle insertion is consistent with the preoperative plan, avoiding the problem of the guide needle being inserted too deep or not deep enough, thereby reducing human errors in the operation, improving the accuracy of osteotomy and the safety of the operation, and further reducing the time of postoperative recovery and the risk of complications. The guide in the present invention has a flexible adjustment structure design, which can adapt to the anatomical structure and surgical needs of different patients. The various parts of the guide can be quickly adjusted according to surgical needs, including the adjustment of the guide needle direction, angle and depth, making it suitable for a variety of surgical scenarios, thereby improving the scope of application of the guide, making it a highly versatile surgical tool suitable for various complex HTO surgical situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall front section structure of the present invention; Figure 2 is a schematic diagram of the top view of the guide fixture of the present invention; Figure 3 It is a schematic side sectional structure diagram of the guide needle fixing box of the present invention; Figure 4 It is a schematic diagram of the side section structure of the regulating box of the present invention; Figure 5 It is a schematic diagram of the front cross-section structure of the adjusting sleeve of the present invention; Figure 6 The present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0015] In the figure: 1, fibular tip positioning frame; 2, tibial positioning frame; 3, adjustment slot; 4, positioning sleeve 1; 5, adjustment box; 6, positioning sleeve 2; 7, threaded hole; 8, telescopic sleeve; 9, tibial positioning head; 10, adjustment handle 1; 11, fibular tip positioning head; 12, bracket; 13, guide fixture; 14, sliding cavity; 15, guide needle fixing arm; 16, adjustment sleeve; 17, guide needle fixing box; 18, round hole; 19, adjustment 1. Adjustment handle two; 20. Screw rod one; 21. Arc pressure plate; 22. Needle hole; 23. Scale line one; 24. Adjustment handle three; 25. Screw rod two; 26. Moving plate; 27. Extending rod; 28. Screw rod three; 29. ​​Sliding plate; 30. Hollow support tube; 31. Adjustment handle four; 32. Transmission rod; 33. Bevel gear one; 34. Bevel gear two; 35. Horizontal groove; 36. Scale line two; 37. Pointer; 38. Limit plate. DETAILED DESCRIPTION

[0016] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0017] like Figure 1 , Figure 4 and Figure 6 As shown, a surgical guide for high medial tibial open wedge osteotomy is provided, comprising a fibula tip positioning frame 1, a tibial positioning frame 2 is arranged on the right side of the outer wall of the fibula tip positioning frame 1, an adjustment groove 3 is arranged on the front surface of the tibial positioning frame 2, the outer wall of the fibula tip positioning frame 1 is slidably connected to the inside of the adjustment groove 3, a positioning sleeve 1 4 is fixedly connected to the bottom end of the tibial positioning frame 2, an adjustment box 5 is fixedly connected to the lower surface of the positioning sleeve 1 4, a positioning sleeve 2 6 is arranged below the adjustment box 5, a through-type threaded hole 7 is arranged on the right side of the positioning sleeve 1 4 and the positioning sleeve 2 6, telescopic sleeves 8 are threadedly connected to the inside of the two threaded holes 7, tibial positioning heads 9 are fixedly connected to the left sides of the two telescopic sleeves 8, and adjustment handles 10 are fixedly connected to the right ends of the two telescopic sleeves 8, a fibula tip positioning head 11 is fixedly connected to the left tip of the fibula tip positioning frame 1, and scale lines 23 are arranged on the outer walls of the two telescopic sleeves 8; When performing HTO surgery, the doctor aligns the front end fibula tip positioning head 11 of the fibula tip positioning frame 1 with the patient's fibula tip, and then adjusts the position of the tibial positioning frame 2 according to the patient's tibia width through the adjustment slot 3, so as to facilitate operation on tibias of different sizes. Then, by rotating the two adjustment handles 10, the two telescopic sleeves 8 are rotated inside the two threaded holes 7, and the two telescopic sleeves 8 can be controlled to extend outward, so that the inner sides of the patient's tibia are fixed by the two tibial positioning heads 9, so that the tibial guide device can be fixed to the patient's tibia. Since the distance between the fibula tip positioning head 11 of the device and the tibial positioning frame 2 is known, when the two telescopic sleeves 8 are extended, the doctor can observe the extended distance of the two telescopic sleeves 8 according to the scale line 23 set on the outside thereof, so as to calculate the total length of the cut tibia, without the need for auxiliary calculation by other auxiliary tools. Then, the doctor can judge whether the osteotomy depth is consistent with the preoperative plan based on the measurement results.

[0018] like Figure 1 and Figure 6 As shown, the left side of the two tibial positioning heads 9 and the right side of the fibula tip positioning head 11 are both thorn-shaped knots; The left side of the two tibial positioning heads 9 and the right side of the fibula tip positioning head 11 are both thorn-shaped knots that can increase the friction between the tibia and the tibia when fixing the patient's tibia, preventing the device from shifting when inserting the guide needle, causing the two guide needles to be out of parallel state, thereby affecting the progress of the operation and reducing the efficiency of the operation.

[0019] like Figure 1-Figure 3 As shown, the upper surface of the fibula tip positioning frame 1 is fixedly connected to two brackets 12, and the tops of the two brackets 12 are commonly fixedly connected to a guide fixture 13, a sliding cavity 14 is provided inside the guide fixture 13, and a guide needle fixing arm 15 is slidably connected inside the sliding cavity 14. The right side of the guide needle fixing arm 15 extends to the right side of the fibula tip positioning frame 1 and is fixedly connected to an adjustment sleeve 16. A guide needle fixing box 17 is provided below the adjustment sleeve 16. A through-type transverse groove 35 is provided on the inner upper surface of the sliding cavity 14, and a scale line 36 is provided on the upper surface of the guide fixture 13 and located behind the transverse groove 35. The guide needle fixing arm 15 is provided with a guide needle fixing box 17. The upper surface of the guide pin fixing box 17 is fixedly connected with a pointer 37 located inside the sliding cavity 14, and the upper surface of the pointer 37 is penetrated with multiple transverse grooves 35. A through-type circular hole 18 is opened on the right side of the guide pin fixing box 17, and an adjustment handle 19 is provided on the lower surface of the guide pin fixing box 17. A screw rod 20 is fixedly connected to the center of the upper surface of the adjustment handle 19. The top of the screw rod 20 extends to the inside of the circular hole 18, and an arc-shaped pressing plate 21 is provided. The outer wall of the screw rod 20 is threadedly connected to the inside of the guide pin fixing box 17. A through-type needle entry hole 22 is opened on the right side of the two adjustment handles 10 and the left side of the two tibial positioning heads 9 respectively; After the osteotomy depth is determined, the guide needle is raised and passed through the upper circular hole 18 and then inserted into the interior of the needle insertion hole 22 of the corresponding height until it contacts the patient's tibial end. Then, the screw rod 20 is controlled to rotate by turning the adjustment handle 19. The rotation of the screw rod 20 can move the arc pressure plate 21 upward, so that the guide needle is firmly fixed inside the circular hole 18 through the arc pressure plate 21 and the inner side of the circular hole 18. In the initial state, the pointer 37 above the guide needle fixing arm 15 points to the initial position of the scale line 36. Then, the guide needle fixing box 17 can be controlled to move horizontally by pushing the guide needle fixing arm 15. The movement of the guide needle fixing box 17 can insert the guide needle into the interior of the tibia. The insertion distance can be judged according to the indicated position of the pointer 37. There is no need to frequently rely on imaging equipment for fluoroscopic inspection of the insertion depth of the guide needle, which not only reduces the operation time, but also prevents patients and medical staff from being exposed to radiation. When the first guide needle is inserted, the fixation of the upper first guide needle is canceled, and the guide needle fixing arm 15 is pulled back to its original position, and then the vertical distance of the guide needle fixing box 17 is adjusted by adjusting the sleeve 16, and then the second guide needle is fixed to the guide needle fixing box 17. Repeating the above operation can make the insertion depth of the second guide needle consistent with the insertion depth of the first guide needle, and the first guide needle and the second guide needle are in a parallel state, so that the uneven osteotomy surface caused by the non-parallel guide needles can be effectively avoided, ensuring the postoperative force line adjustment effect and reducing the occurrence of postoperative complications.

[0020] like Figure 5As shown, an adjusting handle 3 24 is provided above the adjusting sleeve 16, a screw 25 is fixedly connected at the center of the lower surface of the adjusting handle 3 24, a moving plate 26 is slidably connected inside the adjusting sleeve 16, a protruding rod 27 is fixedly connected to the lower surface of the moving plate 26, the bottom end of the protruding rod 27 extends to the bottom of the adjusting sleeve 16, and is fixedly connected to the upper surface of the guide needle fixing box 17, and the bottom end of the screw 25 is rotatably connected to the center of the upper surface of the moving plate 26 through a rotating shaft; After the first guide needle is inserted, the screw rod 25 is controlled to rotate by turning the adjustment handle 3 24, so that the movable plate 26 can be controlled to slide downward by the movement of the screw rod 25. When the movable plate 26 slides, the extending rod 27 can be controlled to move downward, so that the guide needle fixing box 17 can be vertically controlled to move by the extending rod 27, thereby ensuring the parallelism between the two guide needles.

[0021] like Figure 4 As shown, the inner upper surface and the inner lower surface of the adjustment box 5 are rotatably connected with a screw rod 3 28 through a rotating shaft, the outer wall of the screw rod 3 28 is threadedly connected with a sliding plate 29, the lower surface of the sliding plate 29 is fixedly connected with a hollow support tube 30, and the lower surface of the hollow support tube 30 is fixedly connected with the upper surface of the positioning sleeve 2 6, an adjustment handle 4 31 is arranged above the front surface of the adjustment box 5, a transmission rod 32 is fixedly connected at the center of the rear surface of the adjustment handle 4 31, the rear end of the transmission rod 32 extends to the inside of the adjustment box 5, and is fixedly connected with a bevel gear 1 33, a bevel gear 2 34 is fixedly connected above the outer wall of the screw rod 3 28, and the outer wall of the bevel gear 1 33 is meshed with the outer wall of the bevel gear 2 34; The transmission rod 32 is controlled to rotate by rotating the adjustment handle four 31, and the transmission rod 32 controls the rotation of the bevel gear two 34 through the bevel gear one 33, so that the screw three 28 can be rotated through the bevel gear two 34, and the rotation of the screw three 28 can control the sliding plate 29 to slide downward, so that the sliding plate 29 moves the positioning sleeve two 6 downward through the hollow support tube 30, so that the relative distance between the positioning sleeve two 6 and the positioning sleeve one 4 can be adjusted according to actual use, which is convenient for adjustment according to the required osteotomy size, thereby improving the flexibility of the device and making it suitable for a variety of surgical scenarios. This flexibility improves the scope of application of the guide, making it a highly versatile surgical tool suitable for various complex HTO surgical situations.

[0022] like Figure 4 As shown, the inner wall of the regulating box 5 is fixedly connected to a limiting plate 38 located above the sliding plate 29; The setting of the limiting plate 38 can ensure the sliding range of the sliding plate 29 and the safety of the transmission device inside the regulating box 5, thereby increasing the service life of the device.

[0023] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A surgical guide for high medial tibial open wedge osteotomy, comprising a fibula tip positioning frame (1), characterized in that: A tibial positioning frame (2) is arranged on the right side of the outer side wall of the fibular tip positioning frame (1), an adjustment groove (3) is provided on the front surface of the tibial positioning frame (2), and the outer side wall of the fibular tip positioning frame (1) is slidably connected to the inside of the adjustment groove (3); The bottom end of the tibial positioning frame (2) is fixedly connected to a positioning sleeve 1 (4), the lower surface of the positioning sleeve 1 (4) is fixedly connected to an adjustment box (5), a positioning sleeve 2 (6) is arranged below the adjustment box (5), the right sides of the positioning sleeve 1 (4) and the positioning sleeve 2 (6) are both provided with through-type threaded holes (7), the interiors of the two threaded holes (7) are both threadedly connected to telescopic sleeves (8), the left sides of the two telescopic sleeves (8) are both fixedly connected to tibial positioning heads (9), the right ends of the two telescopic sleeves (8) are both fixedly connected to an adjustment handle 1 (10), and the left tip of the fibula tip positioning frame (1) is fixedly connected to a fibula tip positioning head (11).

2. The surgical guide for high medial tibial open wedge osteotomy according to claim 1, characterized in that: Two brackets (12) are fixedly connected to the upper surface of the fibula tip positioning frame (1), and the top ends of the two brackets (12) are fixedly connected to a guide fixture (13). A sliding cavity (14) is provided inside the guide fixture (13), and a guide needle fixing arm (15) is slidably connected inside the sliding cavity (14). The right side of the guide needle fixing arm (15) extends to the right side of the fibula tip positioning frame (1) and is fixedly connected to an adjustment sleeve (16). A guide needle fixing box (17) is provided below the adjustment sleeve (16).

3. The surgical guide for high medial tibial open wedge osteotomy according to claim 2, characterized in that: A through circular hole (18) is provided on the right side of the guide needle fixing box (17), and an adjustment handle 2 (19) is provided on the lower surface of the guide needle fixing box (17). A screw rod 1 (20) is fixedly connected to the center of the upper surface of the adjustment handle 2 (19), and the top end of the screw rod 1 (20) extends to the inside of the circular hole (18) and is provided with an arc-shaped pressure plate (21). The outer wall of the screw rod 1 (20) is threadedly connected to the inside of the guide needle fixing box (17), and through needle insertion holes (22) are provided on the right sides of the two adjustment handles 1 (10) and the left sides of the two tibial positioning heads (9), respectively.

4. The surgical guide for high medial tibial open wedge osteotomy according to claim 1, characterized in that: The outer side walls of the two telescopic sleeves (8) are both provided with a scale line 1 (23).

5. The surgical guide for high medial tibial open wedge osteotomy according to claim 2, characterized in that: An adjusting handle three (24) is arranged above the adjusting sleeve (16), a screw rod two (25) is fixedly connected to the center of the lower surface of the adjusting handle three (24), a movable plate (26) is slidably connected inside the adjusting sleeve (16), a protruding rod (27) is fixedly connected to the lower surface of the movable plate (26), the bottom end of the protruding rod (27) extends to the bottom of the adjusting sleeve (16) and is fixedly connected to the upper surface of the guide needle fixing box (17), and the bottom end of the screw rod two (25) is rotatably connected to the center of the upper surface of the movable plate (26) via a rotating shaft.

6. The surgical guide for high medial tibial opening wedge osteotomy according to claim 1, characterized in that: The inner upper surface and the inner lower surface of the adjustment box (5) are rotatably connected to a screw rod 3 (28) via a rotating shaft. The outer wall of the screw rod 3 (28) is threadedly connected to a sliding plate (29). The lower surface of the sliding plate (29) is fixedly connected to a hollow support tube (30). The lower surface of the hollow support tube (30) is fixedly connected to the upper surface of the positioning sleeve 2 (6). An adjustment handle 4 (31) is provided above the front surface of the adjustment box (5). A transmission rod (32) is fixedly connected to the center of the rear surface of the adjustment handle 4 (31). The rear end of the transmission rod (32) extends to the interior of the adjustment box (5) and is fixedly connected to a bevel gear 1 (33). A bevel gear 2 (34) is fixedly connected to the upper side wall of the screw rod 3 (28). The outer wall of the bevel gear 1 (33) is meshingly connected to the outer wall of the bevel gear 2 (34).

7. The surgical guide for high medial tibial open wedge osteotomy according to claim 2, characterized in that: The inner upper surface of the sliding cavity (14) is provided with a through-type transverse groove (35), the upper surface of the guide fixer (13) and located behind the transverse groove (35) is provided with a second scale line (36), the upper surface of the guide needle fixing arm (15) and located inside the sliding cavity (14) is fixedly connected with a pointer (37), and the upper surface of the pointer (37) passes through the transverse groove (35).

8. The surgical guide for high medial tibial opening wedge osteotomy according to claim 6, characterized in that: A limiting plate (38) is fixedly connected to the inner side wall of the regulating box (5) and is located above the sliding plate (29).

9. The surgical guide for high medial tibial opening wedge osteotomy according to claim 1, characterized in that: The left sides of the two tibial positioning heads (9) and the right side of the fibular tip positioning head (11) are both thorn-shaped structures.

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