CN115778476A - Complete set of device for adjusting osteotomy on femoral side in knee joint replacement - Google Patents
Complete set of device for adjusting osteotomy on femoral side in knee joint replacement Download PDFInfo
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- CN115778476A CN115778476A CN202211212682.3A CN202211212682A CN115778476A CN 115778476 A CN115778476 A CN 115778476A CN 202211212682 A CN202211212682 A CN 202211212682A CN 115778476 A CN115778476 A CN 115778476A
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- osteotomy
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- 210000000629 knee joint Anatomy 0.000 title abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 13
- 210000000988 bone and bone Anatomy 0.000 claims description 103
- 238000011882 arthroplasty Methods 0.000 claims description 14
- 210000003127 knee Anatomy 0.000 claims description 14
- 238000013150 knee replacement Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000002861 polymer material Substances 0.000 claims description 2
- 210000000689 upper leg Anatomy 0.000 abstract description 29
- 210000003141 lower extremity Anatomy 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000002271 resection Methods 0.000 description 3
- 241000469816 Varus Species 0.000 description 2
- 210000003423 ankle Anatomy 0.000 description 2
- 241001227561 Valgus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 210000001694 thigh bone Anatomy 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Abstract
The invention discloses a complete set of device for adjusting osteotomy at the femoral side in knee joint replacement, which comprises an osteotomy plate body and a fixing device for fixing the osteotomy plate body, wherein the osteotomy plate body comprises an integrally formed reference plate and an osteotomy guide plate, the bottom surface of the reference plate is jointed with a formed osteotomy plane to be used as a reference plane during osteotomy, an osteotomy groove is formed in the osteotomy guide plate in a penetrating manner, the osteotomy guide plate is provided with a plurality of specifications, and the osteotomy guide plate of each specification and the reference plate correspondingly form different included angles so as to meet the requirements of osteotomy under different conditions. In the knee joint replacement, after 5 osteotomy surfaces of the femur are finished, a reliable and accurate method is provided for adjusting the distal osteotomy of the femur, the osteotomy amount can be adjusted, the osteotomy angle can be adjusted, and the adjustment of balance of flexion-extension gaps, force lines of lower limbs and balance of inner and outer sides is more convenient, rapid and accurate.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a complete set of device for adjusting osteotomy at the femoral side in knee joint replacement.
Background
The osteotomy is a main step of knee joint replacement, and the osteotomy obtains a gap for accommodating a prosthesis, a neutral position force line, a balanced flexion-extension gap and a balanced soft tissue, so that not only certain accuracy is required, but also corresponding adjustment can be performed according to the condition of a patient, for example, when the distal end of the femur is insufficient in osteotomy amount and the osteotomy angle is wrong, or because the left and right diameters and the front and back diameters of the femur of the patient are not matched, the prosthesis of the corresponding model cannot be used, only a small-sized prosthesis can be used so that the flexion-extension gap is unbalanced, and when the prosthesis needs to be placed at a slightly bent position, the distal end of the femur needs to be adjusted. However, with current conventional surgical tools, adjustments are often not made quickly and efficiently.
Currently, the method for adjusting the distal femur osteotomy comprises the following steps: 1. if the amount of the distal femur osteotomy needs to be increased, the fixing nail of the distal osteotomy guide is not pulled out, and the osteotomy can be performed again through the +2mm nail hole on the osteotomy plate. 2. If the staple is removed, there is no reliable way to supplement osteotomy; if the adjustment is performed manually, the method depends on the experience of an operator, the accuracy and the stability of the operation, and is not suitable for most doctors. 3. At present, no proper method exists for adjusting the distal femur varus and flexion angle, only manual trimming can be performed by depending on the experience of an operator, and no tool is relied on.
Disclosure of Invention
In order to solve the above problems, the present application provides a complete set of devices for adjusting the osteotomy at the femoral side in knee replacement to accurately adjust the distal femur osteotomy.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a complete sets of device that bone was cut in adjustment of knee joint replacement thighbone side, includes cuts the bone plate body and is used for the fixed fixing device who cuts the bone plate body, cut the bone plate body and include integrated into one piece's reference board and cut the bone baffle, the bottom surface of reference board and the reference plane when cutting the bone that has formed laminate mutually, cut and run through on the bone baffle and seted up the osteotomy groove, cut the bone baffle and be provided with multiple specification, the bone baffle that cuts of each specification corresponds with the reference board and forms different contained angles to satisfy the bone of cutting of different situations.
As an improvement of the scheme, the osteotomy groove is arranged in parallel with the bottom surface of the reference plate so as to realize parallel osteotomy of the osteotomy plane.
As an improvement of the scheme, the angle between the osteotomy groove and the bottom surface of the reference plate is 1-5 degrees on the sagittal plane, so that the bending osteotomy of the osteotomy plane is realized.
As an improvement of the scheme, the included angle of 1-3 degrees is formed between the coronal plane of the osteotomy groove and the bottom surface of the reference plate, so that the osteotomy plane is cut by the internal and external turning.
As an improvement of the scheme, the fixing device comprises a plurality of fixing nail holes which are formed on two sides of the reference plate and can be used for mounting fixing nails.
As an improvement of the scheme, the fixing device comprises a plurality of fixing handles arranged at two sides of the reference plate, each fixing handle is obliquely and upwards arranged towards the outer side of the reference plate and penetrates through a fixing nail hole for mounting a fixing nail.
As a refinement of the above solution, the number of fixing lugs on each side of the reference plate is at least one.
As an improvement of the scheme, the osteotomy plate body is made of metal or high polymer materials.
The present application also provides a method for knee arthroplasty femoral side adjustment osteotomy, the method being applied to any one of the above knee arthroplasty femoral side adjustment osteotomy alignment sets, the method comprising:
(1) When the osteotomy is carried out in parallel, the osteotomy groove and the adjusting osteotomy device arranged in parallel on the bottom surface of the reference plate are used for attaching the bottom surface of the reference plate to the osteotomy plane to be osteotomy, the fixing handle is held by hand, the fixing osteotomy plate body is pressed and fixed, or a fixing nail is used, a fixing nail hole is drilled into the bone fixing osteotomy plate body, and the bone is osteotomy is carried out in the osteotomy groove so as to increase the parallel osteotomy of the osteotomy plane;
(2) When the bone is cut in a buckling mode, the bone cutting groove is used for forming an included angle of 1-5 degrees with the bottom surface of the reference plate on the sagittal plane, the bottom surface of the reference plate is attached to a bone cutting plane to be cut, fixing nails are used, the bone fixing bone cutting plate body is drilled into the fixing nail holes, and the bone is cut in the bone cutting groove so as to increase the buckling bone cutting of the bone cutting plane;
(3) When the bone is cut by internal and external turning, the bone cutting groove is used for adjusting the bone cutting device which forms an included angle of 1-3 degrees with the bottom surface of the reference plate on the coronal plane, the bottom surface of the reference plate is attached to the bone cutting plane to be cut, the fixing nail is used, the bone fixing bone cutting plate body is drilled into the fixing nail hole, and the bone is cut in the bone cutting groove so as to increase the internal and external turning bone cutting of the bone cutting plane.
The invention has the following beneficial effects:
in the knee joint replacement, after 5 osteotomy surfaces of the femur are finished, a reliable and accurate method is provided for adjusting the distal osteotomy of the femur, the osteotomy amount can be adjusted, the osteotomy angle can be adjusted, and the adjustment of balance of flexion-extension gaps, force lines of lower limbs and balance of inner and outer sides is more convenient, rapid and accurate.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments,
FIG. 1 is a top view of the kit for a femoral side adjustment osteotomy of the knee arthroplasty of the present application;
FIG. 2 is a front view of the complete set of apparatus for a femoral side adjustment osteotomy of the knee arthroplasty of the present application;
FIG. 3 is a right side view of the kit for a femoral side adjustment osteotomy of the knee arthroplasty of the present application.
In the figure: 1: a reference plate; 2: a bone cutting guide plate; 21: a osteotomy slot; 3: a fixed handle; 31: and fixing the nail holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper side", "lower side", "upper end", "both ends", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the whole set of devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "communicating" are to be construed broadly and can include, for example, fixed and removable connections; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
Referring to fig. 1-3, a kit for knee replacement femoral side adjustment osteotomy includes an osteotomy plate body and a fixation device for securing the osteotomy plate body.
The osteotomy plate body comprises an integrally formed reference plate 1 and osteotomy guide plate 2 made of a polymeric material to achieve stability thereof. The bottom surface of the reference plate 1 is attached to a formed osteotomy plane to serve as a reference plane during osteotomy, the fixing device comprises two fixing handles 3 which are symmetrically arranged on two sides of the reference plate 1, each fixing handle 3 is obliquely and upwards arranged towards the outer side of the reference plate 1, a worker can conveniently fix the osteotomy plate body by grasping the fixing handles 3 during osteotomy, each fixing handle 3 is provided with a fixing nail hole 31 through which a fixing nail can be installed, and the fixing nail is driven into a bone to fix the osteotomy groove 21 body. The bone cutting guide plate 2 is provided with a bone cutting groove 21 in a penetrating mode, the bone cutting guide plate 2 is provided with multiple specifications, and the bone cutting guide plate 2 of each specification and the reference plate 1 correspondingly form different included angles to meet the requirements of bone cutting under different conditions.
The osteotomy groove 21 of one gauge is arranged parallel to the bottom surface of the reference plate 1 to achieve parallel osteotomy to the osteotomy plane.
The osteotomy slot 21 of another gauge is angled at 2 ° to the bottom surface of the reference plate 1 in the sagittal plane for flexion osteotomy in the osteotomy plane. The size of the angle can be adjusted according to the actual situation.
There is also a standard osteotomy slot 21 in the coronal plane at an angle of 1 ° to the bottom surface of the reference plate 1 for the anteroposterior osteotomy of the osteotomy plane. The size of the angle can be adjusted according to the actual situation.
Example 2
The present application also provides a method for knee replacement femoral side adjustment osteotomy, which is applied to the knee replacement femoral side adjustment osteotomy setting device of the above embodiment 1, and the method includes:
(1) When cutting bones in parallel, the bottom surface of the reference plate 1 is attached to a bone cutting plane to be cut by using the adjustment bone cutting device which is arranged in parallel between the bone cutting groove 21 and the bottom surface of the reference plate 1, the fixing handle 3 is held by hand, the bone cutting plate body is pressed and fixed, or a fixing nail is used, a bone fixing bone cutting plate body is drilled into a fixing nail hole 31, and the bones are cut in the bone cutting groove 21 to increase the parallel bone cutting of the bone cutting plane;
(2) When the bone is cut in a buckling mode, the bone cutting groove 21 is used for adjusting the bone cutting device to form an included angle of 2 degrees with the bottom surface of the reference plate 1 on the sagittal plane, the bottom surface of the reference plate 1 is attached to a bone cutting plane to be cut, fixing nails are used, the bone fixing bone cutting plate body is drilled into the fixing nail holes 31, and the bone is cut in the bone cutting groove 21 so that the buckling bone cutting of the bone cutting plane is increased;
(3) When the bone is cut by internal and external turning, the bone cutting groove 21 is used for adjusting the bone cutting device which forms an included angle of 1 degree with the bottom surface of the reference plate 1 on the coronal plane, the bottom surface of the reference plate 1 is attached to the bone cutting plane to be cut, the fixing nail is used, the bone fixing bone cutting plate body is drilled into the fixing nail hole 31, and the bone is cut in the bone cutting groove 21, so that the internal and external turning bone cutting of the bone cutting plane is increased.
Application examples
The first situation is as follows: when the distal femur osteotomy is balanced and straightened, the insufficient distal femur osteotomy amount is judged according to the lateral femur osteotomy amount and the straightened gap size, and the distal femur osteotomy is increased by using the adjusting osteotomy device arranged in parallel of the osteotomy groove 21 and the bottom surface of the reference plate 1. The reference plate 1 is attached to the distal end osteotomy surface of the femur, the fixing handle 3 is held by hand, the fixing osteotomy plate body is pressed, or the fixing nail is used, the fixing nail hole 31 is drilled into the bone fixing osteotomy plate body, and the osteotomy groove 21 is used for osteotomy so as to increase the distal end osteotomy of the femur.
Case two: when 5 osteotomy surfaces (a distal femur osteotomy surface, a front ankle osteotomy surface, a rear ankle osteotomy surface, an upper oblique osteotomy surface and a lower oblique osteotomy surface) on the femur side are all finished, when the installation trial die finds that extension is limited (extension clearance is small), the distal femur osteotomy surface, the upper oblique osteotomy surface and the lower oblique osteotomy surface are required to be osteotomy, and the osteotomy surface adjustment at the moment is finished. The distal femoral resection is now increased using an adjusted osteotomy device with the resection slot 21 in parallel arrangement with the bottom surface of the reference plate 1. The reference plate 1 is attached to the distal femur osteotomy surface, the fixing handle 3 is held by hand, the fixing osteotomy plate body is pressed, or fixing nails are used, the fixing nail holes 31 are drilled into the bone fixing osteotomy plate body, and the osteotomy groove 21 is used for osteotomy, so that the distal femur osteotomy is increased. The reference plate 1 is then placed on the superior and inferior oblique osteotomies, respectively, to increase the osteotomy volume of the corresponding osteotomy. At the moment, under the condition that 5 osteotomy surfaces are all finished, the distal femur osteotomy surface, the upper oblique osteotomy surface and the lower oblique osteotomy surface are all uniformly adjusted, so that the prosthesis can move upwards to increase the straightening gap.
Case three: after the distal femur osteotomy is completed, the model of the femur is measured to be No. 5 (anterior-posterior diameter), but the left-right diameter of the femur can only be provided with No. 4 prosthesis, so that only No. 4 prosthesis can be selected, and in order to avoid excessive osteotomy of the anterior cortex of the femur, the consequence of selecting No. 4 prosthesis is that the posterior condyle of the femur increases the osteotomy amount, which can result in increased flexion gap and unbalanced flexion-extension gap. A strategy for slightly flexing the femoral prosthesis may be employed, requiring adjustment of the distal femoral resection surface to slight flexion. The osteotomy is selected to be performed using an adjusted osteotomy device having an osteotomy slot 21 at a 2 ° angle to the bottom surface of the reference plate 1 in the sagittal plane. The trimmed femoral osteotomy surface shows certain flexion, and when the No. 4 prosthesis is used, the anterior femoral cortical osteotomy is ensured not to have incisura, the postcondylar osteotomy is avoided too much, and the imbalance of flexion-extension gaps is avoided.
And fourthly, when the initial osteotomy of the distal femur surface is bent too much and needs to be adjusted, selecting an adjusting osteotomy device which uses the osteotomy groove 21 to form an included angle of-2 degrees with the bottom surface of the reference plate 1 on the sagittal plane for osteotomy.
Case five: when adjusting the varus/valgus of the osteotomy plane, the osteotomy is performed using an adjustment osteotomy device having an osteotomy slot 21 at an angle of 2 ° to the bottom surface of the reference plate 1 on the coronal plane.
It should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. A complete set of device for femoral side adjustment osteotomy in knee replacement is characterized in that: including cutting the bone plate body and being used for fixed fixing device who cuts the bone plate body, cut the bone plate body including integrated into one piece's reference plate and cut the bone baffle, the bottom surface of reference plate and the reference plane when cutting the bone that has formed laminate mutually, cut and run through on the bone baffle and seted up the osteotomy groove, cut the bone baffle and be provided with multiple specification, the bone baffle that cuts of every specification corresponds with the reference plate and forms different contained angles to satisfy the osteotomy of different situations.
2. The kit for knee arthroplasty femoral side adjustment osteotomy of claim 1, wherein: the osteotomy groove is parallel to the bottom surface of the reference plate so as to realize parallel osteotomy of the osteotomy plane.
3. The kit for knee arthroplasty femoral side adjustment osteotomy of claim 1, wherein: the bone cutting groove and the bottom surface of the reference plate form an included angle of 1-5 degrees on the sagittal plane so as to realize the bending bone cutting of the bone cutting plane.
4. The kit for knee arthroplasty femoral side adjustment osteotomy of claim 1, wherein: the included angle between the coronal plane of the osteotomy groove and the bottom surface of the reference plate is 1-3 degrees, so that the internal and external osteotomy of the osteotomy plane is realized.
5. The kit for knee arthroplasty femoral side adjustment osteotomy of claim 1, wherein: the fixing device comprises a plurality of fixing nail holes which are arranged on two sides of the reference plate and can be provided with fixing nails.
6. The kit for knee arthroplasty femoral side adjustment osteotomy of claim 1, wherein: the fixing device comprises a plurality of fixing handles arranged on two sides of the reference plate, each fixing handle is obliquely and upwards arranged towards the outer side of the reference plate and penetrates through a fixing nail hole capable of being provided with a fixing nail.
7. The kit for knee arthroplasty femoral side adjustment osteotomy of claim 6, wherein: the number of fixing handles on each side of the reference plate is at least one.
8. The kit for knee arthroplasty femoral side adjustment osteotomy of claim 1, wherein: the osteotomy plate body is made of metal or high polymer material.
9. A method of knee arthroplasty femoral side adjustment osteotomy applied to the set of knee arthroplasty femoral side adjustment osteotomies of any one of claims 1-8, the method comprising: the method comprises the following steps:
(1) When the osteotomy is carried out in parallel, the osteotomy groove and the adjusting osteotomy device arranged in parallel on the bottom surface of the reference plate are used for attaching the bottom surface of the reference plate to the osteotomy plane to be osteotomy, the fixing handle is held by hand, the fixing osteotomy plate body is pressed and fixed, or a fixing nail is used, a fixing nail hole is drilled into the bone fixing osteotomy plate body, and the bone is osteotomy is carried out in the osteotomy groove so as to increase the parallel osteotomy of the osteotomy plane;
(2) When the bone is cut in a buckling mode, the bone cutting groove is used for forming an included angle of 1-5 degrees with the bottom surface of the reference plate on the sagittal plane, the bottom surface of the reference plate is attached to a bone cutting plane to be cut, fixing nails are used, the bone fixing bone cutting plate body is drilled into the fixing nail holes, and the bone is cut in the bone cutting groove so as to increase the buckling bone cutting of the bone cutting plane;
(3) When the bone is cut by internal and external turning, the bone cutting groove is used for adjusting the bone cutting device which forms an included angle of 1-3 degrees with the bottom surface of the reference plate on the coronal plane, the bottom surface of the reference plate is attached to the bone cutting plane to be cut, the fixing nail is used, the bone fixing bone cutting plate body is drilled into the fixing nail hole, and the bone is cut in the bone cutting groove so as to increase the internal and external turning bone cutting of the bone cutting plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211212682.3A CN115778476A (en) | 2022-09-30 | 2022-09-30 | Complete set of device for adjusting osteotomy on femoral side in knee joint replacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211212682.3A CN115778476A (en) | 2022-09-30 | 2022-09-30 | Complete set of device for adjusting osteotomy on femoral side in knee joint replacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115778476A true CN115778476A (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211212682.3A Pending CN115778476A (en) | 2022-09-30 | 2022-09-30 | Complete set of device for adjusting osteotomy on femoral side in knee joint replacement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115778476A (en) |
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2022
- 2022-09-30 CN CN202211212682.3A patent/CN115778476A/en active Pending
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