Inner combined fixing system for acetabular posterior wall

Abstract

The invention discloses an inner combined fixing system for the acetabular posterior wall. The system comprises an upper plate, a T-shaped main plate, a lower plate and a straight plate which are arranged inside the acetabulum, a bone fixation plate is composed of the upper plate, the T-shaped main plate, the lower plate and the straight plate, a hole, an extended stable micro lock screw and an extended stable micro bone screw are arranged on the bone fixation plate, wherein the extended stable micro lock screw and the extended stable micro bone screw are in cooperative use with the bone fixation plate, and the upper plate, the T-shaped main plate, the lower plate and the straight plate are fixed to the acetabulum through the lock screw and the bone screw. According to the provided inner combined fixing system for the acetabular posterior wall, plates of any shape can be combined for fixing according to the fixing need, the plates with the same shape and different length specificationsare selected according to the fixing requirement, tedious steel plate plasticity reconstruction is not needed during the operation, the problems of difficult placement and the like are solved, the anatomic design of steel plates solves the problem of steel plate plasticity, and it can be avoided that the damage to the surfaces of the steel plates is caused, and the mechanical property and corrosion resistance of the steel plates are affected when the plasticity of the steel plates is reconstructed.

Description

Technical field [0001] The invention relates to the technical field of fixation systems, in particular to a combined internal fixation system for the posterior wall of the acetabulum. Background technique [0002] With the development of social transportation and industry, there are more and more high-energy injuries. Most of the posterior wall fractures of the acetabulum are caused by high-energy injuries. The fracture of the posterior wall of the acetabulum is also the most common acetabular fracture, accounting for about 3.76%. At present, the treatment of acetabular posterior wall fractures basically uses reconstruction plates and elastic plate fixation, and cumbersome plate reconstruction is required during the operation. However, the use of reconstruction plates and elastic plate fixation for comminuted acetabular posterior wall fractures has great limitations and prognosis Bad. Therefore, a professional fixation system for the treatment of posterior acetabular fractures i...

AI Technical Summary

Problems solved by technology

At present, reconstruction plates and elastic plates are used for the treatment of fractures of the posterior wall of the acetabulum, and cumbersome plate reconstruction is required during the operation. For comminuted fractures of the posterior wall of the acetabulum, the use of reconstruction plates and elastic plates for fixation has great limitations and poor prognosis. bad

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