Steel plate for acetabulum

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an anatomic steel plate for acetabulum, which consists of a plate body and two end wings. The plate body is in the shape of a 'top hat', the middle arch has a radian and is matched with the anatomic shape of the acetabulum, and the two end wings are tilted slightly so as to be matched with the anatomic shape of the nodule extension positions between the acetabulum and the upper ilium bone and between the acetabulum and the lower ischium. The plate body of the steel plate is uneven in width, and at the joints of the sides of the plate body with the edge of a back wall of the acetabulum, one side of the plate body contacts with the posterior column of the acetabulum, the middle of the plate body is in transition gradually, and the other side of the plate body contacts with the ilium. The integral design of the width of the plate body is consistent with variation of the thickness of the bone mass of the acetabulum, and the middle of the steel plate for the acetabulum is slightly wider than the two end wings, and is provided with multi-angle lock screw holes, dual-purpose screw holes and Kirschner wire holes. The anatomic steel plate for the acetabulum can be used after being adjusted slightly according to fracture condition during surgery, is fit with local bone mass well, free of forming larger slots and capable of preventing screws entering an articular cavity when in implanting of the screws.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an internally fixed anatomical bone plate for acetabular fractures. Background technique [0002] With the rapid development of my country's social economy, accidents in the construction and transportation industries occur frequently, and many patients often have acetabular fractures at the same time. According to the classification of acetabular fractures, posterior acetabular wall fractures and posterior column fractures account for the highest proportion of all acetabular fractures, accounting for about half. Because acetabular fractures often involve the hip joint surface and are often combined with posterior dislocation of the femoral head, most of them require surgical treatment, requiring anatomical reduction of the articular surface and adequate internal fixation support to obtain early functional exercise and avoid hip joint instability and trauma Ar...

AI Technical Summary

Problems solved by technology

[0005] To sum up, the current internal fixation plates for the posterior wall of the acetabular wall are not convenient to use due to design defects.

Not only does it not conform to the shape of the posterior wall of the acetabulum, but the bending needs to be temporarily adjusted during the operation, which will reduce the quality of the steel plate; moreover, the thickness of the steel plate is uniform, and the fixation does not fit snugly, which may easily cause internal fixation failure, affecting the quality of the entire operation and postoperative patients. recovery

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