CN112545722B

CN112545722B - Knee joint replacement balancer combining osteotomy and gap balance measurement technology

Info

Publication number: CN112545722B
Application number: CN202011391867.6A
Authority: CN
Inventors: 雷鹏飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2023-04-25
Anticipated expiration: 2040-12-01
Also published as: CN112545722A

Abstract

A knee joint replacement balancer for measuring osteotomy and combining gap balancing technology comprises an osteotomy amount and four-in-one osteotomy module setting instrument; the device is characterized in that the setting device of the osteotomy quantity and the four-in-one osteotomy module comprises a handle, a setting platform, an osteotomy quantity measuring structure and the four-in-one osteotomy module setting structure; the handle is connected with the setting platform, the setting platform is provided with a four-in-one osteotomy module setting structure perpendicular to the upper plane of the setting platform, and the length of the setting platform is greater than the width of the four-in-one osteotomy module setting structure; the four-in-one osteotomy module setting structure comprises a part with a notch, wherein an osteotomy measuring structure with a right angle bend is arranged in the notch; the osteotomy measuring structure comprises a vertical section and a horizontal section; the vertical section of the osteotomy quantity measuring structure is arranged in the notch, and the horizontal section is a structure for extending out to find the femur edge so as to measure the osteotomy quantity through the vertical section; the setting structure of the four-in-one osteotomy module comprises a flat plate structure with different four-in-one osteotomy module insertion holes.

Description

Knee joint replacement balancer combining osteotomy and gap balance measurement technology

Technical Field

The invention belongs to the technical field of orthopedic medical instruments, in particular to a balancing instrument used in total knee replacement surgery, and particularly relates to a knee replacement balancer combining osteotomy and gap balancing technologies.

Background

The artificial total knee arthroplasty is a new technology for treating knee joint diseases, which is developed gradually in the modern times, can effectively eradicate the pain of the advanced knee joint diseases, and greatly improves the life quality of patients.

However, total knee arthroplasty is a technically challenging procedure in which osteotomy measurements and soft tissue balancing of the patient's flexion and extension sites are required to achieve equal flexion-extension gaps and good patellar trajectories. In particular, for the measurement of balance clearance and osteotomy in the state of patient flexion, accurate measurement is required to determine the angle of the rotation pair line and how to effectively select a suitable four-in-one osteotomy module. In the prior art, the measurement of the buckling clearance, the measurement of the bone cutting amount, the selection of the four-in-one bone cutting module and the setting of the positioning hole are all needed to be completed in sequence, or the position and the rotation angle of the four-in-one bone cutting module can be determined only through a complex clearance balancer. Especially, when the four-in-one osteotomy module is selected and set, the measuring instrument is firstly fixed on the femur for measurement, the measured osseous structure is cut off after the measurement is completed, the whole process has long operation time, and a plurality of required intraoperative assistant staff are needed.

Therefore, the inventor expects to design an instrument capable of accelerating the speed from the measurement of the buckling clearance to the setting of the four-in-one osteotomy module, improving the precision and the efficiency of the current two ways of measuring the osteotome and the clearance balancer to complete the total knee joint replacement, effectively saving the operation time, facilitating the operation of the minimally invasive myolash access small incision, and increasing the success rate and the postoperative curative effect of the operation.

Aiming at the problems of long time of femoral gap balance and osteotomy measurement steps in the buckling position in the prior art, the invention provides a knee joint replacement balancer for measuring osteotomy and gap balance technology.

Disclosure of Invention

A knee joint replacement balancer for measuring osteotomy and combining gap balancing technology comprises an osteotomy amount and four-in-one osteotomy module setting instrument; the device is characterized in that the setting device of the osteotomy quantity and the four-in-one osteotomy module comprises a handle, a setting platform, an osteotomy quantity measuring structure and the four-in-one osteotomy module setting structure; the handle is connected with the setting platform, the setting platform is provided with a four-in-one osteotomy module setting structure perpendicular to the upper plane of the setting platform, and the length of the setting platform is greater than the width of the four-in-one osteotomy module setting structure; the four-in-one osteotomy module setting structure comprises a part with a notch, wherein an osteotomy measuring structure with a right angle bend is arranged in the notch; the osteotomy measuring structure comprises a vertical section and a horizontal section; the vertical section of the osteotomy quantity measuring structure is arranged in the notch, and the horizontal section is a structure for extending out to find the femur edge so as to measure the osteotomy quantity through the vertical section; the setting structure of the four-in-one osteotomy module comprises a flat plate structure with different four-in-one osteotomy module insertion holes. During the use, through will setting up the platform and stretch into the clearance of femur and tibia buckling position, through stretching each position of femur platform with the level section of osteotomy volume measurement structure, know the volume that needs to osteotomy, paste the condition of understanding femur platform on the femur platform through the flat board structure, confirm model position and the rotation angle of four unification osteotomy modules to in will locating nail the corresponding pilot hole, back handheld handle withdraws from all structures from the femur position and accomplishes the measurement.

Further, the first end of the platform is a connecting handle end; the setting platform is a rectangular platform which is connected with the handle through a triangular connecting structure;

further, the thickness of triangle connection structure is thinner than setting up the platform, and this kind of setting can increase overall structure's layering sense, reduces overall quality.

Further, the handle is a hollow handle, and the hollow arrangement is also a weight reduction arrangement.

Further, a buckling clearance measuring structure is specially arranged and comprises a handle and a buckling clearance measuring platform which is integrally connected with the handle; and setting measuring structures of buckling gap measuring platforms with different thicknesses so as to obtain corresponding equal buckling gaps and good patella track.

Alternatively, different thickness setting platforms are provided, the front of which is used to measure flexion gaps and patella trajectories. When in use, a measuring platform with proper thickness is selected for measurement.

Further, the setting platform is connected with the handle and the four-in-one osteotomy module setting structure in a combined manner, and the setting platform with proper thickness is selected to be combined with the handle and the four-in-one osteotomy module.

Or, set up the unchangeable setting platform of thickness, set up platform and handle and four unification and cut bone module and set for structural grouping and be connected or body coupling, set up the measurement board that measurement buckling clearance and soft tissue of different thickness are balanced on the setting platform, measure the board and set up the platform composite connection, and this kind of setting only need to measure the board when using and change can accomplish the use.

Further, the four-in-one osteotomy module setting structure is integrally a plate-shaped structure perpendicular to the setting platform, and comprises a plate structure arranged on one side or two sides and a notched part connected with the plate structure on one side or two sides; and a connecting plate for connecting the setting platform and the flat plate structure is arranged below the flat plate structure on at least one side. The two sides are provided with the four-in-one osteotomy module which can be better determined from two ends of the femur, and the single side is provided with the functions which are difficult.

Further, a connecting plate groove for accommodating the bottom of the connecting plate is formed in the setting platform, and the shape of the connecting plate groove is consistent with that of the connecting plate. This arrangement can effectively realize the connection.

Further, set up platform and connecting plate composite connection, the connecting plate bottom sets up 2 screw holes, sets up the screw hole that runs through the setting in the bottom of connecting plate groove, connects the screw hole on connecting plate and the connecting plate groove through the screw, and then realizes setting up the combination of platform and connecting plate.

Further, the connecting plate groove comprises a large extending groove and two protruding grooves at the front end, and 1-2 fixing screw holes are arranged in the extending groove; the bottom of the corresponding connecting plate is provided with an extending section and a protruding section; when the screw hole is combined, the extending section is arranged in the extending groove, the protruding section is arranged in the protruding groove, and the screw hole is connected through the screw.

Further, one or two connecting plate grooves are arranged on the setting platform by taking the handle as a symmetry axis. One setting operation is simple, and the two settings increase the setting randomness and are not limited by the direction.

Further, two connecting plate grooves are formed by taking the handle as a symmetry axis; the connecting plates are arranged in one of the connecting plate grooves according to the requirement.

Further, a measuring plate for measuring buckling gaps and soft tissue balance is arranged on the side of the connecting plate groove where the connecting plate is not arranged.

Further, a horizontal groove perpendicular to the direction of the handle is formed in the second end of the setting platform, a screw hole connected with the measuring plate is formed in the horizontal groove, the measuring plate is correspondingly provided with the screw hole, and the buckling gap measuring plate is connected with the setting platform through a screw.

Further, a notch is arranged in the middle of the platform, and the horizontal groove and the connecting plate groove are divided into two by taking the handle as a symmetry axis through the notch.

Further, the horizontal groove is further provided with an arc-shaped protruding portion in a direction away from the handle, and the arc-shaped protruding portion can reduce damage to femur or passing by when the horizontal groove is inserted.

Further, the height of the arc-shaped protruding portion is higher than that of the side wall of the horizontal groove, and the arrangement can effectively prevent the position from moving when the buckling measuring plate is fixed.

Further, the flat plate structure is a circular structure, and the part with the notch is a notched plate;

further, 8 four-in-one osteotomy module model limited insertion holes of different sizes are provided on the unilateral plate structure.

Further, the different jacks are marked with dimension marks, so that the rotation of the insertion needle or the nail can be conveniently finished at the highest speed. The reference numbers set the socket reference numbers according to the size and parameters of the knee prosthesis involved in the clinic. The reference numerals are respectively: 1.5;2;2.5;3, a step of; 4, a step of; 5, a step of; 6.

further, a scale for determining the osteotomy amount is arranged on the vertical section of the osteotomy amount measuring structure.

Further, the horizontal segment of the osteotomy measurement structure comprises two small segments with different thicknesses, wherein the thickness of the front end is smaller than that of the rear end, and the horizontal segment is convenient to extend in, and can maintain certain strength, so that the risk of bending is reduced.

Further, the perpendicular section of osteotomy measurement structure is the movable plate unanimous with notch thickness, and this kind of setting makes things convenient for the scale to set up, conveniently removes.

Or, the vertical section of the osteotomy measurement structure is set to be cylindrical, the diameter of the vertical section is consistent with the thickness of the notch, the vertical section can conveniently rotate in the notch to realize rotation measurement, the amount of the osteotomy required at two ends of the femur can be known as soon as possible through rotation, and the measurement can be realized without moving to the position corresponding to the position of the femur.

Further, the thickness of the position with the maximum thickness of the platform is set to be 3-5mm; the thickness range of the buckling clearance measuring plate is 2-4mm; wherein preferably 2mm is set; 2.5mm;3mm;3.5mm4 measuring plates of different thickness.

Furthermore, the whole instrument is made of medical metal materials or medical plastic materials, the cost of the metal and plastic materials is low, and the manufacturing process is simple.

Compared with the measurement of the quantity of the bone cut at the buckling position, the four-in-one bone cut module is used for selecting and balancing the gap and balancing the soft tissues in the prior art, the use of the device can well reduce the use number of the device, the measurement steps and the measurement time, the measurement accuracy is high, the purpose of reducing the measurement time can be well achieved, the success rate of the operation is increased, the manpower consumption is reduced, the manufacturing cost is low, and the large-scale production can be realized on the premise that the total knee joint replacement operation is more and more common at present.

Drawings

FIG. 1 is a schematic view of the overall structure of an embodiment of the present invention in which two connecting plate slots are provided on a setting platform;

FIG. 2 is a schematic view of the handle and the structure of the platform according to the embodiment of the present invention in which the platform is provided with two connecting plate grooves;

FIG. 3 is a schematic view of a structure of a setting platform with a buckling gap measuring plate according to an embodiment of the setting platform provided with two connecting plate grooves;

FIG. 4 is a schematic view of a structure of a four-in-one structure platform configuration structure according to an embodiment of the present invention in which two connecting plate grooves are provided on the configuration platform, and two protruding sections are provided on the connecting plate;

FIG. 5 is a schematic view of a four-in-one osteotomy module configuration and osteotomy measurement configuration assembly in accordance with the present invention;

FIG. 6 is a schematic view of a four-in-one osteotomy module configuration and osteotomy measurement configuration of the present invention, with two protruding sections of the connecting plate;

FIG. 7 is a schematic view of the overall structure of an embodiment of the present invention in which the installation platform is provided with a connecting plate slot and no horizontal slot is provided;

FIG. 8 is a schematic view of the structure of the platform and the handle in the embodiment of the invention in which the platform is provided with a connecting plate slot and no horizontal slot is provided;

FIG. 9 is a schematic view of the overall structure of an embodiment of the present invention in which the platform is provided with a connecting plate slot and a horizontal slot is provided;

FIG. 10 is a schematic view of a single handled flexion gap measuring structure in accordance with the present invention.

In the figure, 1, a platform is arranged; 11. a connecting plate groove; 111. screw holes; 112. extend into the groove; 113. a protruding groove; 114. a horizontal slot; 115. a notch; 116. an arc-shaped protruding portion; 2. an osteotomy measurement structure; 21. a vertical section; 22. a horizontal section; 23. a scale; 3. setting structure of four-in-one osteotomy module; 31. a notch; 32. a flat plate structure; 33. a connecting plate; 331. a stretch-in section; 332. a protruding section; 4. a buckling clearance measurement structure; 41. a handle; 42. a buckling clearance measurement platform; 43. the plate was measured.

Detailed Description

Example 1A knee replacement balancer for measuring osteotomy and gap balance technique

A knee joint replacement balancer for measuring osteotomy and combining gap balancing technology comprises an osteotomy amount and four-in-one osteotomy module setting instrument; the osteotomy quantity and four-in-one osteotomy module setting instrument comprises a handle 41, a setting platform 1, an osteotomy quantity measuring structure 2 and a four-in-one osteotomy module setting structure 3; the handle 41 is connected with the setting platform 1, the setting platform 1 is provided with a four-in-one osteotomy module setting structure 3 which is perpendicular to the upper plane of the setting platform 1, and the length of the setting platform 1 is larger than the width of the four-in-one osteotomy module setting structure 3; the four-in-one osteotomy module setting structure 3 comprises a part with a notch 31, and an osteotomy measuring structure 2 with a right angle bend is arranged in the notch 31; the osteotomy measurement structure 2 includes a vertical section 21 and a horizontal section 22; the vertical section of the osteotomy amount measuring structure 2 is arranged in the notch 31, and the horizontal section 22 is a structure for extending out to find the femur edge so as to measure the osteotomy amount through the vertical section 21; the four-in-one osteotomy module setting structure 3 includes a plate structure 32 with different four-in-one osteotomy module insertion holes; the vertical section 21 of the osteotomy amount measuring structure 2 is provided with graduations 23 for determining the osteotomy amount. During the use, through will setting up in platform 1 stretches into the clearance of femur and tibia buckling position, through stretching each position of femur platform with the level section 22 of osteotomy volume measurement structure 2, know the volume of needs osteotomy, paste the condition of understanding the femur platform on the femur platform through flat plate structure 32, confirm model position and the rotation angle of four unification osteotomy module to in will the locating nail corresponding pilot hole, back handheld handle 41 withdraws from all structures from the femur position and accomplishes the measurement.

The first end of the setting platform 1 is a connecting handle 41 end; the setting platform 1 is a rectangular platform, and is connected with the handle 41 through a triangular connecting structure; the thickness of triangle connection structure is thinner than setting up platform 1, and this kind of setting can increase overall structure's layering sense, reduces overall quality. The handle 41 is a hollow handle 41, the hollow arrangement being likewise a weight-reducing arrangement.

The setting platforms 1 with different thicknesses are arranged, and the front parts of the setting platforms 1 are used for measuring the buckling gaps and the patella track.

The four-in-one osteotomy module setting structure 3 is a plate-shaped structure which is vertical to the setting platform 1 and comprises a flat plate structure 32 arranged on one side or two sides and a groove 31 part connected with the flat plate structure 32 on one side or two sides; a connecting plate 33 for connecting the setting platform 1 and the flat plate structure 32 is arranged below the flat plate structure 32 on at least one side. The two sides are provided with the four-in-one osteotomy module which can be better determined from two ends of the femur, and the single side is provided with the functions which are difficult.

The flat plate structure 32 is a circular structure, and the part of the slot 31 is a slot 31 plate; the single-sided flat panel structure 32 is provided with 8 four-in-one osteotomy module model-defined insertion holes of different sizes. The different jacks are marked with dimension marks, so that the rotation of the insertion needle or the nail can be finished conveniently at the fastest speed. The reference numbers set the socket reference numbers according to the size and parameters of the knee prosthesis involved in the clinic. The reference numerals are respectively: 1.5;2;2.5;3, a step of; 4, a step of; 5, a step of; 6.

the horizontal segment 22 of the osteotomy measurement structure 2 comprises two small segments with different thicknesses, wherein the front end is smaller than the rear end, and the arrangement facilitates the extension of the horizontal segment 22, maintains a certain strength, and reduces the risk of bending.

The vertical section 21 of the osteotomy measurement structure 2 is a movable plate with the same thickness as the notch 31, and the arrangement is convenient for the graduation 23 to be arranged and the movement is convenient.

Setting the thickness of the maximum position of the thickness of the platform to be 3-5mm; the thickness of the buckling gap measuring plate 43 ranges from 2 to 4mm; wherein preferably 2mm is set; 2.5mm;3mm;3.5mm4 measuring plates 43 of different thickness. The whole instrument is made of medical metal materials or medical plastic materials, the cost of the metal and plastic materials is low, and the manufacturing process is simple.

Example 2A knee replacement balancer for measuring osteotomy and gap balance technique

The setting platform 1 is provided with a connecting plate groove 11 for accommodating the bottom of the connecting plate 33, and the shape of the connecting plate groove 11 is consistent with that of the connecting plate 33. This arrangement can effectively realize the connection. The setting platform 1 is connected with the connecting plate 33 in a combined way, 2 screw holes 111 are formed in the bottom of the connecting plate 33, screw holes 111 penetrating through the setting are formed in the bottom of the connecting plate groove 11, and the connecting plate 33 and the screw holes 111 on the connecting plate groove 11 are connected through screws, so that the combination of the setting platform 1 and the connecting plate 33 is realized.

The connecting plate groove 11 comprises a large extending groove 112 and two protruding grooves 113 at the front end, and 1-2 fixing screw holes 111 are arranged in the extending groove 112; the bottom of the corresponding connecting plate 33 is provided with an extending section 331 and a protruding section 332; in combination, the protruding section 331 is disposed in the protruding groove 112, and the protruding section 332 is disposed in the protruding groove 113 and connects the screw holes 111 by screws.

The setting platform 1 is provided with a connecting plate groove 11. The setting operation of one is simple.

The horizontal slot 114 is further provided with an arcuate projection 116 away from the handle 41, the arcuate projection 116 reducing trauma to the femur or to the approach during extension. The height of the arc-shaped protruding portion 116 is higher than the height of the side wall of the horizontal groove 114, and this arrangement can effectively prevent the movement of the position when the inter-buckling measuring plate 43 is fixed.

The buckling clearance measuring structure 4 is specially arranged and comprises a handle 41 and a buckling clearance measuring platform 42 integrally connected with the handle 41; the measurement structures of the different thickness flexion gap measurement platform 42 are set to obtain corresponding equal flexion-extension gaps and good patella trajectories. The setting platform 1 is connected with the handle 41 and the four-in-one osteotomy module setting structure 3 in a combined way, and the setting platform 1 with proper thickness is selected to be combined with the handle 41 and the four-in-one osteotomy module.

The four-in-one osteotomy module setting structure 3 is a plate-shaped structure perpendicular to the setting platform 1, and comprises a plate structure 32 arranged on one side or two sides, and a slot 31 connecting the plate structures 32 on one side or two sides

A portion; a connecting plate 33 for connecting the setting platform 1 and the flat plate structure 32 is arranged below the flat plate structure 32 on at least one side. The two sides are provided with the four-in-one osteotomy module which can be better determined from two ends of the femur, and the single side is provided with the functions which are difficult.

The flat plate structure 32 is a circular structure, and the part of the slot 31 is a slot 31 plate; the single-sided flat panel structure 32 is provided with 8 four-in-one osteotomy module model-defined insertion holes of different sizes. The different jacks are marked with dimension marks, so that the rotation of the insertion needle or the nail can be finished conveniently at the fastest speed. The reference numbers set the socket reference numbers according to the size and parameters of the knee prosthesis involved in the clinic. The reference numerals are respectively: 1.5;2;2.5;3, a step of; 4, a step of; 5, a step of; 6. the horizontal segment 22 of the osteotomy measurement structure 2 comprises two small segments with different thicknesses, wherein the front end is smaller than the rear end, and the arrangement facilitates the extension of the horizontal segment 22, maintains a certain strength, and reduces the risk of bending.

The vertical section 21 of the osteotomy measurement structure 2 is cylindrical, the diameter of the vertical section is consistent with the thickness of the notch 31, the vertical section 21 can conveniently rotate in the notch 31 to realize rotation measurement, and the amount of osteotomy required at two ends of the femur can be known as soon as possible through rotation without moving to the position corresponding to the position of the femur.

Example 3A knee replacement balancer for measuring osteotomy and gap balance technique

The buckling clearance measuring structure 4 is specially arranged and comprises a handle 41 and a buckling clearance measuring platform 42 integrally connected with the handle 41; the measurement structures of the different thickness flexion gap measurement platform 42 are set to obtain corresponding equal flexion-extension gaps and good patella trajectories.

The setting platform 1 with unchanged thickness is arranged, the setting platform 1 is connected with the handle 41 and the four-in-one osteotomy module setting structure 3 in a combined mode or integrally connected, the setting platform 1 is provided with measuring plates 43 with different thickness for measuring buckling gaps and soft tissue balance, the measuring plates 43 are connected with the setting platform 1 in a combined mode, and the setting can be completed by replacing the measuring plates 43 when the setting platform is used.

The setting platform 1 is provided with two connecting plate grooves 11 taking the handle 41 as a symmetry axis; the connection plate 33 is disposed in one of the connection plate grooves 11 as needed.

The side of the connection plate groove 11 where the connection plate 33 is not provided is provided with a measurement plate 43 for measuring the buckling gap and soft tissue balance. A horizontal groove 114 perpendicular to the direction of the handle 41 is arranged at the second end position of the setting platform 1, a screw hole 111 connected with the measuring plate 43 is arranged in the horizontal groove 114, the measuring plate 43 is correspondingly provided with the screw hole 111, and the buckling gap measuring plate 43 is connected with the setting platform 1 through screws.

Example 4A knee replacement balancer for measuring osteotomy and gap balance technique

A notch 115 is provided in the middle of the installation platform 1, and the horizontal groove 114 and the connecting plate groove 11 are divided into two by the notch 115 with the handle 41 as a symmetry axis.

The above description of embodiments is only for the understanding of the present invention. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present invention without departing from the principles of the invention, and such modifications will fall within the scope of the claims.

Claims

1. A knee joint replacement balancer for measuring osteotomy and combining gap balancing technology comprises an osteotomy amount and four-in-one osteotomy module setting instrument; the device is characterized in that the setting device of the osteotomy quantity and the four-in-one osteotomy module comprises a handle, a setting platform, an osteotomy quantity measuring structure and the four-in-one osteotomy module setting structure; the handle is connected with the setting platform, the setting platform is provided with a four-in-one osteotomy module setting structure perpendicular to the upper plane of the setting platform, and the length of the setting platform is greater than the width of the four-in-one osteotomy module setting structure; the four-in-one osteotomy module setting structure comprises a part with a notch, wherein an osteotomy measuring structure with a right angle bend is arranged in the notch; the osteotomy measuring structure comprises a vertical section and a horizontal section; the vertical section of the osteotomy quantity measuring structure is arranged in the notch, and the horizontal section is a structure for extending out to find the femur edge so as to measure the osteotomy quantity through the vertical section; the setting structure of the four-in-one osteotomy module comprises a flat plate structure with different four-in-one osteotomy module insertion holes, and the first end of the setting platform is a connecting handle end; the setting platform is a rectangular platform which is connected with the handle through a triangle connection structure.

2. The knee replacement balancer of claim 1 wherein the thickness of the delta connection is thinner than the thickness of the platform.

3. The knee replacement balancer for measuring osteotomies and balancing techniques in combination according to claim 1, wherein the flexion gap measuring structure is specially configured and comprises a handle and a flexion gap measuring platform integrally connected with the handle.

4. The knee replacement balancer of claim 1 in combination with a technique of measuring osteotomy and gap balancing, wherein different thickness setting platforms are provided, the front of the setting platforms being used to measure flexion gaps.

5. The knee joint replacement balancer according to claim 1, wherein the platform is provided with a constant thickness, the platform is connected with the handle and the four-in-one osteotomy module setting structure in a combined or integrated manner, the platform is provided with measuring plates with different thickness for measuring buckling gaps and soft tissue balance, and the measuring plates are connected with the platform in a combined manner.

6. The knee replacement balancer according to claim 5, wherein the four-in-one osteotomy module setting structure is a plate-shaped structure perpendicular to the setting platform, and includes a plate structure provided on one side or both sides, and a notched portion connecting the plate structures on one side or both sides; and a connecting plate for connecting the setting platform and the flat plate structure is arranged below the flat plate structure on at least one side.

7. The knee replacement balancer for measuring osteotomy and gap balancing technique as recited in claim 6, wherein the platform is provided with a web slot for receiving a bottom portion of the web, the web slot being shaped to conform to the web.

8. The knee replacement balancer for measuring osteotomy and gap balancing technique according to claim 5, wherein a horizontal slot perpendicular to the direction of the handle is provided at the second end of the setting platform, a screw hole is provided in the horizontal slot for connecting the measuring plate, and the buckling gap measuring plate is correspondingly provided with a screw hole, and is connected with the buckling gap measuring plate and the setting platform by a screw.

9. The knee replacement balancer of any of claims 1-8 in combination with a technique of measuring osteotomy and gap balancing, wherein the horizontal segment of the osteotomy measurement structure includes two small segments of different thickness, wherein the anterior end has a smaller thickness than the posterior end.

10. The knee replacement balancer of claim 9, wherein the vertical section of the osteotomy measurement structure is a moving plate having a thickness corresponding to the thickness of the slot, or wherein the vertical section of the osteotomy measurement structure is formed in a cylindrical shape having a diameter corresponding to the thickness of the slot.