Abstract
Copyright c 2012 by Korean Hip Society 148 A ceramic femoral head articulating with a polyethylene (PE) liner is one of the bearing surface options available for total hip arthroplasty (THA). The wear rates of acetabular PE in ceramic-on-PE articulations have been reported in hip simulation and clinical studies to be lower than those of metal-on-PE implants. Although, femoral metal heads have been associated with complete wear-through of the PE liner and metal shell, extensive wear resulting in the penetration of a femoral head through an acetabular cup is rare for ceramic-on-PE THA. Nevertheless, several reports have been issued on the complete or even the catastrophic PE failure of ceramic-on-PE systems. However, no report has yet described catastrophic bilateral PE failure after ceramic-on-PE THA. Here, we present a case of bilateral complete PE wear with acetabular cup perforation after ceramic-on-PE THA. The patient was informed that case data would be submitted for publication, and provided consent.
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