Orthopedic joint osteotomy replacement instrument and auxiliary system thereof

Abstract

The invention relates to the technical field of medical instruments, and discloses an orthopedic joint osteotomy replacement instrument and an auxiliary system thereof. When the adjusting frame and the hoisting binding belt are turned over along the hinged part and the height and the hoisting angle of the hoisting binding belt are further adjusted to be matched with the bending degree of the bone joint of a patient, the adjusting plates on the two sides of the adjusting frame can slide outwards in the positioning plates, the circular guide blocks at the ends of the adjusting plates can slide in the ratchet bars through the connecting blocks, and at the moment, the adjusting frame is fixed; the rotating block can rotate in a reciprocating mode under abutting fit of the elastic clamping hook, so that the circular guide block can jump to a certain position along the ratchet bar to be clamped by the ratchet groove, and a triangular stable structure is formed among the positioning plate, the adjusting plate, the side edge of the adjusting frame and the transverse plate. In this way, fine adjustment of the supporting height and angle of the ribbon hoisted on the adjusting frame is achieved, the ribbon is fixed at the same time, and further bending osteotomy operation adjustment of bone joints is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an orthopedic joint osteotomy and replacement device and an auxiliary system thereof. Background Art

[0002] Currently, during total knee arthroplasty (TKA) surgery, the knee joint needs to be kept flexed during the osteotomy operation in order to expose the required osteotomy surfaces of the femur and tibia. In particular, during the osteotomy of the femur and tibia and the installation of the prosthesis, the patient's knee joint of the affected limb needs to be flexed and perpendicular to the bed surface. During this operation, an assistant is required to manually fix the affected limb throughout the entire process. Due to the long operation time, the bare hands are prone to fatigue, and unreliable fixation of the affected limb is likely to cause deviation of the femoral or tibial osteotomy, thereby affecting the installation of the femoral and tibial prostheses on the knee joint and the correction of the force line of the affected limb, ultimately leading to surgical errors and affecting the postoperative efficacy of the affected limb.

[0003] For example, the Chinese patent authorization publication number CN109223421A discloses a knee replacement stent, comprising a support frame A, a fixing frame, a support frame B, and a fixing rod, wherein: the support frame A and the support frame B are door-shaped frames, and the cross beams A and B are provided with a plurality of slots; the two ends of the fixing rod are respectively clamped on the cross beams A and B, and the fixing frame is sleeved on the fixing rod, wherein; the fixing frame comprises a cross bar A, a clamping ring, a clip A, a cross bar B, a groove plate, a collar A, a bottom plate, a collar B, a clip A, and a clip B, wherein the collar A and the collar B are fixed to both sides of the bottom of the groove plate, and a bottom plate is provided between the bottoms of the collars A and B, one end of the cross bar A is fixed to the collar A, and one end of the cross bar B is fixed to the collar B, and the two ends of the clamping ring are respectively clamped and fixed on the cross bar A and the cross bar B by the clips A and B respectively. The above-cited documents describe a short operation time, less blood loss, fewer medical personnel required, and ease of use.

[0004] However, when the above-mentioned knee replacement brace is used, after the brace is assembled on the operating table, the human bone joint is hoisted with a lifting strap. Since there are certain differences in the curvature of the human limbs, the installed brace needs to be further adjusted in support height and angle after the limb joints are bent, and then re-fixed, which makes the lifting strap less suitable for bone and joint hoisting. Summary of the Invention

[0005] The purpose of the present invention is to provide an orthopedic joint osteotomy and replacement instrument and its auxiliary system, which can realize the hoisting support of the bone joint osteotomy site, and further fine-tune the height and angle of the support site, making it more convenient for further bending and osteotomy operations of the bone joint.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an orthopedic joint osteotomy and replacement instrument and its auxiliary system, comprising an operating table, a bracket, a lifting strap, and further comprising: Adjusting frame, hinged on one side of the top of the support; Positioning plate, movably mounted at the top of the support, a guide slot is formed in the middle of the positioning plate, a ratchet strip is integrally formed on the inner wall of the guide slot at the bottom side, a path convex slot is formed at the top and bottom of the guide slot respectively, a protrusion is integrally formed on the inner wall of the path convex slot at the top and bottom of the guide slot respectively; Adjusting plate, movably mounted at the middle of the two sides of the adjusting frame, a rotating block is rotatably installed at one end of the adjusting plate close to the inner side of the positioning plate, a clamping hook is fixedly installed at the adjusting plate close to the rotating block, a connecting block and a circular guide block are fixedly installed on one side of the outer edge of the rotating block respectively, the adjusting plate slides in the inner wall of the guide slot, and the circular guide block is engaged with the ratchet strip.

[0007] Preferably, positioning buckle plates are fixedly installed on one side of the front and back of the operating bed respectively, the support includes two groups of vertical plates and two groups of horizontal plates, and the two groups of horizontal plates are fixedly installed at the top of the two groups of vertical plates respectively.

[0008] Preferably, positioning holes are formed at equal intervals on the outer side of the two groups of vertical plates, and the bottom end of the vertical plate is inserted into the inner wall of the corresponding positioning buckle plate.

[0009] Preferably, handles are fixedly installed on the two sides of the outer part of the adjusting frame respectively, the adjusting frame is hinged at the top of the connection between the vertical plate and the horizontal plate, the positioning plate is hinged on the inner side of the horizontal plate, and the adjusting plate is hinged at the middle of the two sides of the adjusting frame.

[0010] Preferably, positioning notches and positioning clamping grooves are formed at the top edge of the rotating block respectively, a pin shaft is fixedly installed on one side of the adjusting plate close to the rotating block, and the clamping hook is integrally formed on the pin shaft.

[0011] Preferably, the positioning clamping groove is located at the edge of one end of the positioning notch, the clamping hook is located in the inner wall of the positioning notch, and abuts against the inner wall of the positioning notch.

[0012] Preferably, the circular guide block is fixedly connected with the rotating block through the connecting block, and the side section of the circular guide block is in T-shaped structure.

[0013] Preferably, guide rails are fixedly installed on one side of the inner wall of the operating bed, and a push plate is slidably connected in the two groups of guide rails, and the two ends of the push plate are movably inserted into the front and back of the operating bed respectively.

[0014] Preferably, the push plate is in T-shaped structure, positioning springs are fixedly installed on the two sides of the inner wall of the operating bed respectively, mounting plates are fixedly installed on one end of the front and the back of the push plate respectively, positioning protrusions are fixedly installed on the two sides of the front of the two groups of mounting plates respectively, and the two groups of positioning protrusions are fixedly inserted into the inner part of the corresponding positioning holes respectively.

[0015] Preferably, S1, by performing a preoperative CT / MRI scan, and then performing three-dimensional reconstruction and prosthesis planning through AI; S2, by registering the patient's skeleton with the navigation system; S3, placing the limb to be osteotomized in a lifting strap, adjusting the support with an adjustment frame, and then tightening the limb with a strap through the lifting strap, and then positioning the osteotomy area; S4, real-time monitoring of ligament balance and dynamic calibration of osteotomy path; S5. Install the prosthesis, verify the force alignment, and close the incision.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The adjusting frame of the present invention is hinged on one side of the top of the bracket, and the adjusting frame and the lifting strap are flipped along the hinge part to further adjust the height and lifting angle of the lifting strap to match the patient's bone joint curvature, and the adjusting plates on both sides of the adjusting frame can slide outward in the positioning plates, and the circular guide blocks at the ends of the adjusting plates can slide in the ratchet bars through the connecting blocks. At this time, the rotating blocks can be rotated back and forth under the abutment of the elastic hooks, so that the circular guide blocks can jump along the ratchet bars to a certain position and be clamped by the ratchet grooves, so that a triangular stable structure is formed between the positioning plates, the adjusting plates, the side edges of the adjusting frame and the cross plates, thereby realizing fine-tuning of the support height and angle of the lifting strap on the adjusting frame and fixing it at the same time, which is more convenient for further bending and osteotomy operation of the bone joint; The present invention pushes the push plate to slide along the guide rail, so that the two groups of mounting plates on the push plate can deform the two groups of positioning springs respectively, so that the four groups of vertical plates in the bracket can slide up and down arbitrarily from the corresponding positioning buckle plates to adjust the height. After loosening the push plate, the positioning protrusions on the two groups of mounting plates can be inserted into the corresponding positioning holes under the elastic reset of the positioning springs, thus realizing the synchronous adjustment of the height and positioning of the four groups of vertical plates in the bracket, and the orthopedic joint osteotomy bracket is more convenient to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 Schematic diagram of the side cross-section structure of the operating table in the present invention; Figure 3 This is a schematic diagram of the expanded structure of the bracket and the adjustment frame in the present invention; Figure 4 It is a schematic diagram of the local structure of the adjustment frame in the present invention; Figure 5 This is a schematic diagram of the local structure of the operating table in the present invention; Figure 6 for Figure 4A schematic diagram of the partially enlarged structure at center A; Figure 7 for Figure 5 Schematic diagram of the locally enlarged structure at point B in the middle.

[0018] In the figure: 100, operating table; 200, bracket; 300, lifting strap; 400, adjusting frame; 500, positioning plate; 600, adjusting plate; 700, push plate; 11, positioning buckle plate; 21, vertical plate; 22, horizontal plate; 23, positioning hole; 41, handle; 50, path groove; 51, guide groove; 52, ratchet bar; 501, protrusion; 61, rotating block; 62, pin; 63, hook; 64, connecting block; 65, circular guide block; 611, positioning notch; 612, positioning slot; 70, positioning spring; 71, guide rail; 72, mounting plate; 73, positioning protrusion. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example 1: This embodiment introduces an orthopedic joint osteotomy and replacement device and its auxiliary system, such as Figure 1-Figure 7 As shown, The system includes an operating table 100, a support 200, a lifting strap 300, and further includes: The adjustment frame 400 is hinged to one side of the top of the bracket 200; The positioning plate 500 is movably mounted on the top of the bracket 200. A guide groove 51 is defined in the middle of the positioning plate 500. A ratchet bar 52 is integrally formed on the bottom of the inner wall of the guide groove 51. A path protrusion 50 is defined at the top and bottom of the guide groove 51. Protrusions 501 are integrally formed on the inner walls of the path protrusion 50 at the top and bottom of the guide groove 51. The adjusting plate 600 is movably mounted in the middle of both sides of the adjusting frame 400. A rotating block 61 is rotatably mounted on one end of the adjusting plate 600 near the inner end of the positioning plate 500. A hook 63 is fixedly mounted on the adjusting plate 600 near the rotating block 61. A connecting block 64 and a circular guide block 65 are fixedly mounted on one side of the outer edge of the rotating block 61. The adjusting plate 600 slides in the inner wall of the guide groove 51, and the circular guide block 65 engages with the ratchet bar 52.

[0021] Among them, the front and back sides of the operating bed 100 are respectively fixedly installed with positioning buckle plates 11, and the bracket 200 includes two groups of vertical plates 21 and two groups of horizontal plates 22. The two groups of horizontal plates 22 are respectively fixedly installed at the top of the two groups of vertical plates 21. Positioning holes 23 are opened at equal intervals on the outer sides of the two groups of vertical plates 21. The bottom ends of the vertical plates 21 are inserted into the inner walls of the corresponding positioning buckle plates 11. By pushing the push plate 700 to slide along the guide rail 71, the two groups of mounting plates 72 on the push plate 700 can respectively deform the two groups of positioning springs 70, so that the four groups of vertical plates 21 in the bracket 200 can slide up and down from the corresponding positioning buckle plates 11 to adjust the height. After loosening the push plate 700, the positioning protrusions 73 on the two groups of mounting plates 72 can be inserted into the corresponding positioning holes 23 under the elastic reset of the positioning springs 70.

[0022] Among them, handles 41 are fixedly installed on both sides of the outside of the adjustment frame 400, the adjustment frame 400 is hinged at the junction of the top of the vertical plate 21 and the horizontal plate 22, the positioning plate 500 is hinged on the inner side of the horizontal plate 22, and the adjustment plate 600 is hinged to the middle of both sides of the adjustment frame 400. The adjustment frame 400 is hinged to one side of the top of the bracket 200, and by flipping the adjustment frame 400 and the lifting strap 300 along the hinged part, the height and lifting angle of the lifting strap 300 are further adjusted to match the patient's bone joint curvature.

[0023] Among them, the rotating block 61 is respectively provided with a positioning notch 611 and a positioning slot 612 near the top edge. The adjusting plate 600 is fixedly installed with a pin 62 on one side close to the rotating block 61. The hook 63 is integrally formed on the pin 62. The positioning slot 612 is located at the edge of one end of the positioning notch 611. The hook 63 is located in the inner wall of the positioning notch 611 and conflicts with the inner wall of the positioning notch 611. The circular guide block 65 is fixedly connected to the rotating block 61 through the connecting block 64. The side section of the circular guide block 65 is a T-shaped structure. The adjusting plates 600 on both sides of the adjusting frame 400 can When sliding outward in the positioning plate 500, the circular guide block 65 at the end of the adjusting plate 600 can slide in the ratchet bar 52 through the connecting block 64. At this time, the rotating block 61 can rotate back and forth under the abutment of the elastic hook 63, so that the circular guide block 64 can jump along the ratchet bar 52 to a certain position and be clamped by the ratchet groove, so that a triangular stable structure is formed between the positioning plate 500, the adjusting plate 600 and the side of the adjusting frame 400 and the cross plate 22, thereby realizing fine adjustment of the support height and angle of the hanging strap 300 on the adjusting frame 400.

[0024] In this embodiment, the bracket 200 is installed near the rear end of the operating table 100 and fixed. During the operation, the patient lies flat on one end of the operating table 100, and the bone to be cut can be tied and suspended by the hanging strap 300 above the bracket 200, so that the bone joint can be easily cut and replaced. When the adjusting frame 400 is hinged on the top side of the bracket 200, and the adjusting frame 400 and the lifting strap 300 are flipped along the hinged part to further adjust the height and lifting angle of the lifting strap 300 to match the patient's bone joint curvature, the adjusting plates 600 on both sides of the adjusting frame 400 can slide outward in the positioning plate 500, and the circular guide blocks 65 at the ends of the adjusting plates 600 can slide in the ratchet bar 52 through the connecting block 64. At this time, the rotating block 61 can rotate back and forth under the abutment and cooperation of the elastic hook 63, so that the circular guide blocks 64 can jump along the ratchet bar 52 to a certain position and be clamped by the ratchet groove, so that a triangular stable structure is formed between the positioning plate 500, the adjusting plate 600 and the side of the adjusting frame 400 and the cross plate 22. In this way, the support height and angle of the lifting strap 300 on the adjusting frame 400 can be fine-tuned and fixed at the same time, which is more convenient for further bending and osteotomy operation adjustment of the bone joint. Example 2: Based on Example 1, this example introduces an orthopedic joint osteotomy and replacement instrument and its auxiliary system, such as Figure 2 、 Figure 5 as well as Figure 7 Shown, including: A guide rail 71 is fixedly installed on one side of the inner wall of the operating bed 100. A push plate 700 is slidably connected to the inside of the two sets of guide rails 71. The two ends of the push plate 700 are movable through the front and back of the operating bed 100. The push plate 700 is a T-shaped structure. Positioning springs 70 are fixedly installed on both sides of the push plate 700 and the inner wall of the operating bed 100. Mounting plates 72 are fixedly installed on the front side of the push plate 700 near one end and the back end respectively. Positioning protrusions 73 are fixedly installed on both sides of the front of the two sets of mounting plates 72. The two sets of positioning protrusions 73 are fixedly plugged into the corresponding Inside the positioning hole 23, by pushing the push plate 700 to slide along the guide rail 71, the two groups of mounting plates 72 on the push plate 700 can deform the two groups of positioning springs 70 respectively, so that the four groups of vertical plates 21 in the bracket 200 can slide up and down arbitrarily from the corresponding positioning buckle plates 11 to adjust the height. After loosening the push plate 700, the positioning protrusions 73 on the two groups of mounting plates 72 can be inserted into the corresponding positioning holes 23 under the elastic reset of the positioning springs 70, thereby realizing the synchronous adjustment of the height of the four groups of vertical plates 21 in the bracket 200.

[0025] Among them, S1, through preoperative CT / MRI scanning, and then through AI for three-dimensional reconstruction and prosthesis planning; S2, by registering the patient's skeleton with the navigation system; S3, placing the limb to be osteotomized in the lifting strap 300, adjusting the support through the adjustment frame 400, and then tightening the lifting strap 300 with a strap, and then positioning the osteotomy area; S4, real-time monitoring of ligament balance, and correcting the osteotomy path through dynamic calibration; S5, installing the prosthesis and verifying the force line, closing the incision In this embodiment, by pushing the push plate 700 to slide along the guide rail 71, the two sets of mounting plates 72 on the push plate 700 can deform the two sets of positioning springs 70 respectively, so that the four sets of vertical plates 21 in the support 200 can be adjusted in height up and down at will from the corresponding positioning buckle plates 11, and after the push plate 700 is loosened, the positioning protrusions 73 on the two sets of mounting plates 72 can be inserted into the corresponding positioning holes 23 under the elastic reset of the positioning springs 70, so that the four sets of vertical plates 21 in the support 200 are adjusted in height synchronously and positioned, and the adjustment of the orthopedic joint osteotomy support is more convenient; Working principle: when the orthopedic joint osteotomy replacement instrument support is used, first, the four sets of vertical plates 21 in the support 200 are inserted into the corresponding positioning buckle plates 11 on the side of the operating bed 100, and then the push plate 700 is pushed to slide along the guide rail 71, so that the two sets of mounting plates 72 on the push plate 700 can deform the two sets of positioning springs 70 respectively, so that the four sets of vertical plates 21 in the support 200 can be adjusted in height up and down at will from the corresponding positioning buckle plates 11, and after the push plate 700 is loosened, the positioning protrusions 73 on the two sets of mounting plates 72 can be inserted into the corresponding positioning holes 23 under the elastic reset of the positioning springs 70, so that the four sets of vertical plates 21 in the support 200 are adjusted in height synchronously; Then, the knee bone leg to be operated is placed in the hoisting strap 300, which is supported by adjusting the frame 400, and when the bending degree and height of the knee joint are further adjusted, the adjusting plate 600 on both sides of the adjusting frame 400 can slide outwards in the positioning plate 500, and the circular guide block 65 at the end of the adjusting plate 600 can slide in the ratchet bar 52 through the connecting block 64, at this time, the rotating block 61 can reciprocating rotate under the abutting cooperation of the elastic clamping hook 63, so that the circular guide block 64 can jump along the ratchet bar 52 to a certain position and be clamped by the ratchet groove, so that the positioning plate 500, the adjusting plate 600 and the adjusting frame 400 side and the cross plate 22 form a triangular stable structure, which realizes the support height and angle adjustment of the hoisting strap 300 on the adjusting frame 400, and at the same time fixes it; Finally, when the replacement instrument bracket is reset, the lifting strap 300 and the bone joint can be released from the lifting positioning, and the adjustment frame 400 can be reversed to the maximum angle. At this time, the circular guide block 65 moves to the top of the ratchet bar 52, and then contacts and lifts up the protrusion 501 in the path convex groove 50 in the guide groove 51. At this time, the positioning groove 612 on the rotating block 61 can be clamped by the elastic hook 63. When the adjusting frame 400 and the top of the bracket 200 are reset clockwise, the adjusting plate 600 can slide down from the positioning plate 500 to the bottom of the guide groove 51. The rotating block 61 is pressed again by the protrusion 501 through the bottom path convex groove 50 and rotates counterclockwise, so that the positioning groove 612 on the circular guide block 65 is disengaged from the hook 63.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An orthopedic joint osteotomy and replacement device and its auxiliary system, comprising an operating table (100), a bracket (200), and a lifting strap (300), characterized in that: Also includes: An adjustment frame (400) is hinged to one side of the top of the bracket (200); A positioning plate (500) is movably mounted on the top of the bracket (200), a guide groove (51) is provided in the middle of the positioning plate (500), a ratchet bar (52) is integrally formed on the bottom side of the inner wall of the guide groove (51), a path convex groove (50) is provided at the top and bottom of the guide groove (51), and protrusions (501) are integrally formed on the inner walls of the path convex groove (50) at the top and bottom of the guide groove (51); An adjusting plate (600) is movably mounted at the middle of both sides of the adjusting frame (400), and a rotating block (61) is rotatably mounted on one end of the adjusting plate (600) close to the inner side of the positioning plate (500). A hook (63) is fixedly mounted on the adjusting plate (600) close to the rotating block (61). A connecting block (64) and a circular guide block (65) are fixedly mounted on one side of the outer edge of the rotating block (61). The adjusting plate (600) slides in the inner wall of the guide groove (51), and the circular guide block (65) is engaged with the ratchet bar (52).

2. The orthopedic joint osteotomy and replacement instrument and its auxiliary system according to claim 1, characterized in that: Positioning buckle plates (11) are fixedly mounted on the front and back sides of the operating bed (100), respectively. The bracket (200) comprises two groups of vertical plates (21) and two groups of horizontal plates (22), and the two groups of horizontal plates (22) are fixedly mounted on the tops of the two groups of vertical plates (21).

3. The orthopedic joint osteotomy and replacement instrument and its auxiliary system according to claim 2, characterized in that: Positioning holes (23) are formed through the outer side surfaces of the two groups of vertical plates (21) at equal intervals, and the bottom ends of the vertical plates (21) are inserted into the inner walls of the corresponding positioning buckle plates (11).

4. The orthopedic joint osteotomy and replacement instrument and its auxiliary system according to claim 3, characterized in that: Handles (41) are fixedly mounted on both sides of the outside of the adjustment frame (400). The adjustment frame (400) is hinged to the top connection point of the vertical plate (21) and the horizontal plate (22). The positioning plate (500) is hinged to the inner side of the horizontal plate (22). The adjustment plate (600) is hinged to the middle of both sides of the adjustment frame (400).

5. The orthopedic joint osteotomy and replacement instrument and its auxiliary system according to claim 4, characterized in that: The rotating block (61) is provided with a positioning notch (611) and a positioning slot (612) near the top edge thereof, and a pin shaft (62) is fixedly mounted on one side of the adjusting plate (600) near the rotating block (61), and the hook (63) is integrally formed on the pin shaft (62).

6. The orthopedic joint osteotomy and replacement instrument and its auxiliary system according to claim 5, characterized in that: The positioning slot (612) is located at an edge of one end of the positioning notch (611), and the hook (63) is located in the inner wall of the positioning notch (611) and abuts against the inner wall of the positioning notch (611).

7. The orthopedic joint osteotomy and replacement instrument and its auxiliary system according to claim 6, characterized in that: The circular guide block (65) is fixedly connected to the rotating block (61) via a connecting block (64), and the side section of the circular guide block (65) is a T-shaped structure.

8. The orthopedic joint osteotomy and replacement instrument and its auxiliary system according to claim 7, characterized in that: A guide rail (71) is fixedly mounted on one side of the inner wall of the operating bed (100), and push plates (700) are slidably connected inside two sets of the guide rails (71). The two ends of the push plates (700) are movable and extend through the front and back of the operating bed (100).

9. The orthopedic joint osteotomy and replacement instrument and its auxiliary system according to claim 8, characterized in that: The push plate (700) is a T-shaped structure. Positioning springs (70) are fixedly installed on both sides of the push plate (700) and the inner wall of the operating table (100). Mounting plates (72) are fixedly installed on the front side of the push plate (700) near one end and the back side, respectively. Positioning protrusions (73) are fixedly installed on both sides of the front side of two groups of the mounting plates (72). The two groups of positioning protrusions (73) are fixedly inserted into the corresponding positioning holes (23).

10. The orthopedic joint osteotomy and replacement auxiliary system according to claim 9, characterized in that: S1: Perform preoperative CT / MRI scans, followed by 3D reconstruction and prosthesis planning using AI. S2, by registering the patient's skeleton with the navigation system; S3, placing the limb to be osteotomized in the lifting strap (300), adjusting the support through the adjustment frame (400), and then tightening the lifting strap (300) with a strap, and then positioning the osteotomy area; S4, real-time monitoring of ligament balance and dynamic calibration of osteotomy path; S5. Install the prosthesis, verify the force alignment, and close the incision.

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