Catastrophic Failure of the Polyethylene Liner of Uncemented Acetabular Components

Overview

Journal J Bone Joint Surg Br

Specialties General Surgery
Orthopedics

Date 1994 Jul 1

PMID 8027143

Citations 17

Authors

D J Berry

C L Barnes

R D Scott

M E Cabanela

R Poss

Affiliations

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Abstract

Ten cases are described of catastrophic failure of the polyethylene liner of three different designs of uncemented acetabular component. Failure occurred as a result of either 'wearthrough' to the metal backing, liner fracture or a combination of both, at a mean of 4.6 years after implantation (2 to 7.6). At revision there was metallosis in all hips and osteolysis of the femur or the pelvis in six. Catastrophic failure was seen only in cups with a minimum polyethylene thickness of less than 5 mm.

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