Calcar femorale osteotomy positioner

Abstract

A calcar femorale osteotomy positioner belongs to the technical field of bone surgery appliances and is used for playing an auxiliary positioning function for calcar femorale osteotomy in an orthopedic hip-joint displacement operation. The technical scheme is as follows: a guiding table is arranged at the top part of the positioner, a positioning seat is arranged at the lower part of the positioner, the guiding table is circular arc-shaped, a positioning groove is arranged on the inner side of the circular arc of the guiding table, the positioning groove is matched with the circumference of the calcar femorale, a transverse osteotomy guiding slit is arranged at the middle part of the guiding table, a clamping groove is arranged at the lower part of the positioning seat, and the peripheries of the clamping groove are matched with a circumference at the top part of a small rotor. An operator uses a swing saw to carry out osteotomy along the osteotomy guiding slit to enable an osteotomy surface to be smooth and meet the mounting angle of a hip joint false body, so that the problem that femur osteotomy surface and angle in the hip joint displacement operation can not meet an ideal requirement in a long term is solved. The calcar femorale osteotomy positioner has simple structure and excellent osteotomy effect, is convenient to use, shortens the time of an operation, is an ideal auxiliary appliance for osteotomy of the femur in the hip joint displacement operation, and has popularization and application values.

Description

technical field [0001] The invention relates to an auxiliary device for osteotomy of a femoral calcar in an orthopaedic hip joint replacement operation, belonging to the technical field of orthopaedic surgical instruments. Background technique [0002] As my country fully enters an aging society, osteoporotic femoral neck fractures are more and more common in the elderly over 65 years old, and total / hemi hip replacement has become the preferred treatment for patients with displaced femoral neck fractures. In hip replacement surgery, the residual femoral neck needs to be osteotomy to find a suitable hip joint prosthesis installation plane, which has strict requirements on flatness and plane angle. First, the flatness of the plane should be straight, without protrusions or depressions, so that the hip joint prosthesis is in close contact with the installation plane, so that the post-operative connection is firm; It is particularly important that the position and orientation o...

AI Technical Summary

Problems solved by technology

However, due to the limited exposure of the femoral neck that needs osteotomy during the operation, the position is deep, and there is a lack of suitable and special osteotomy positioning tools, it brings great inconvenience to the operation of this type of operation.

Clinicians can only rely on experience to operate, which makes it very difficult for the installation plane of the hip joint prosthesis to meet the ideal surgical requirements, which not only prolongs the operation time, but more importantly, affects the surgical effect, which is not conducive to the patient recover

This situation has not been fundamentally changed so far, and it has become the main factor restricting the ideal effect of orthopedic hip replacement surgery, and it is necessary to take measures to solve it

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