Fracture of a cross-linked polyethylene liner: a multifactorial issue.
case_report · Level V
Where this comes from
- Record sourced from PubMed, PMID 20851563.
- Also identified by DOI 10.1016/j.arth.2010.07.009.
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Abstract
A limited number of reports have detailed the cause of fracture of a highly cross-linked polyethylene liner. Typically, the fractures have occurred in a region of thin and/or unsupported polyethylene, in association with superiorly directed edge loading conditions secondary to an excessively inclinated acetabular component. This case report details an unusual fracture mechanism of a 5-mrad cross-linked liner caused by horizontal loading conditions. The report details several factors that were felt to be etiologic including the specific liner locking mechanism. The treatment options are discussed.
Medical subject headings
- Arthroplasty, Replacement, Hip
- Equipment Failure Analysis
- Hip Prosthesis
- Polyethylene
- Prosthesis Failure
Anatomy
- hip