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Catastrophic Wear of the Metal-Backed Acetabular Cup in the Uncemented Acetabular Cup System: A Case Report

全人工股關節置換後因嚴重磨損導致金屬髖臼穿孔之病例報告

並列摘要


Failure of the polyethylene liner after uncemented anatomic medullary locking (AML) total hip arthroplasty with acetabular cup system (ACS) was reported in the literature. Catastrophic wear of the metallic acetabular component is extremely uncommon. We report a case that occurred ten years after implantation. Improper design is considered to be the cause of excessive wear of the polyethylene linear followed by wear through of its metal backing.

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