Replacement equipment for artificial ilium

Abstract

An artificial bone displacing equipment for treating the pelvis major defect is composed of femur-ischium connector, ilium displacing unit and sacrum connector with angle regulator between connection plate and bone supporting plate.

Description

Technical field [0001] The invention relates to the medical field of iliac bone defect reconstruction after human pelvic tumor resection, in particular to the design of an artificial iliac bone replacement device used after pelvic tumor resection. Background technique [0002] The human pelvis is composed of left and right hip bones (including ilium, pubis, and ischia), sacrum, coccyx and their ligaments. It can be divided into two parts: large pelvis and small pelvis. The pelvis is an important part of the connection between the trunk and the lower extremities. Its main features are: (1) The pelvis is the largest flat bone group in the human body, containing a large amount of cancellous bone, which is filled with functional bone marrow. (2) There are many important organs, blood vessels and nerve plexus in the pelvic ring. (3) The pelvis is one of the main weight-bearing parts of the human body and accepts body weight from the sacrum. [0003] In addition to the difference in si...

AI Technical Summary

Problems solved by technology

The disadvantage of this kind of operation is that when the tumor and tumor bone are resected, the iliac bone defect and the hip joint are absent, and the patient is prone to complications such as limb shortening, joint displacement, and claudication

However, there are also limitations. First, the existing prosthesis is developed for the reconstruction of bone defects around the acetabulum. When the tumor invades the large pelvis and the ilium is resected, this prosthesis cannot be effectively connected and fixed with the sacrum to achieve transmission of force

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