Tibia unicompartmental osteotomy device

An osteotomy and tibia technology, applied in the field of unicondylar replacement, can solve the problems of easily broken template, deviation of osteotomy position, and wrong osteotomy, and achieve the effect of good accuracy and precise positioning.

Pending Publication Date: 2017-08-04
聂宇 +1
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Problems solved by technology

However, on the one hand, when the osteotomy template prepared by using the patient's preoperative image data is used during the operation, due to the soft tissue on the patient's bone surface that has not been cleaned, there will be deviations in the osteotomy position of the osteotomy plate, which will affect the quality of the osteotomy. bone accuracy
[0005] On the other hand, the osteotom

Method used

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  • Tibia unicompartmental osteotomy device
  • Tibia unicompartmental osteotomy device
  • Tibia unicompartmental osteotomy device

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Embodiment Construction

[0042] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0043]According to one aspect of the present invention, a tibial unicondylar osteotomy device is provided. The tibial unicondylar osteotomy device includes an osteotomy plate 1, a guide plate 2 and a connecting structure, wherein the connecting structure includes a joint fixed to the guide plate 2 and the osteotomy plate 1 respectively. The first connecting piece and the second connecting piece on the top, by setting the first...

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Abstract

The invention discloses a tibia unicompartmental osteotomy device. The tibia unicompartmental osteotomy device comprises an osteotomy plate, a guiding plate and a connecting structure, and osteotomy grooves are formed in the osteotomy plate. The guiding plate comprises a first surface, and the first surface is matched with a tibia platform and used for positioning the tibia unicompartmental osteotomy device; the connecting structure comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged on the second connecting piece in a sliding mode, the first connecting piece is fixed on the guiding plate, and the second connecting piece is fixedly arranged on the osteotomy plate. The first connecting piece is arranged on the second connecting piece in a sliding mode, the osteotomy plate can move relative to the guiding plate to achieve position adjustment of the osteotomy plate, and therefore accurate positioning of the osteotomy plate is achieved.

Description

technical field [0001] The invention relates to the technical field of unicondylar replacement, in particular to a tibial unicondylar osteotomy device for unicondylar replacement. Background technique [0002] Currently, in the procedure of tibial osteotomy for unicondylar knee arthroplasty (UKA), the usual way of osteotomy is to first vertically and then horizontally. Traditional unicompartmental replacement uses a mechanical guide to perform extramedullary positioning osteotomy. The operator uses the naked eye, feel and experience to locate the anatomical landmarks, the line of force of the lower limbs, and the axis of rotation of the prosthesis, and then manually marks the osteotomy and places the prosthesis. In the traditional unicompartmental replacement surgery, the operator completes the alignment and alignment subjectively, which affects the reliability of the positioning method and the accuracy of the operation, and even leads to the failure of the operation. [00...

Claims

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Application Information

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IPC IPC(8): A61B17/15A61B17/17
CPCA61B17/157A61B17/1732A61B17/1739
Inventor 聂宇樊宗庆付明俊董骧
Owner 聂宇
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