J Korean Orthop Assoc.  1994 Aug;29(4):1199-1204. 10.4055/jkoa.1994.29.4.1199.

Disassembly of Polyethylene Liner in Cementless Metal-Backed Cup: A case report

• Kim YI
• Choi CU
• Shin BJ
• Seo YS
• Jin SY
• Yoo JE

• KMID: 2423192
• DOI: http://doi.org/10.4055/jkoa.1994.29.4.1199

Abstract

In 1971, for purpose of reduction of peak stress occuring in cement and trabecular bone of the acetabulum, Harris reported a series of metal-backed acetabular components with removable polyethylene liners that could be replaced if excessive wear occured. Modular designs of hip prostheses have become popular recently, but they introduce the risk of disassembly of the components postoperatively. And introduce of loosening and infection of femoral or acetabular components by debris of polyethylene liner. We report a case of mechanical disassembly of polyethylene liner in cementless metal backed cup, and review previously reported articles.

Keyword

Metal-Backed Cup; Polyethylene Liner; Disassembly

MeSH Terms

Acetabulum
Hip Prosthesis
Polyethylene*
Polyethylene