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Failure Analysis of Alumina on Alumina Total Hip Arthroplasty With a Layered Acetabular Component

The Journal of Arthroplasty, ISSN: 0883-5403, Vol: 28, Issue: 10, Page: 1822-1827
2013
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Metric Options:   Counts1 Year3 Year

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Article Description

This prospective study reports the outcome of total hip arthroplasty (THA) performed in a consecutive series of patients using an alumina ceramic on a ceramic-layered component (Alumina-Bearing-Surface system). The cohort consisted of 270 hips in 229 patients. The study evaluated the clinical and radiological results over a mean follow-up of 11.4 years. Revision THA was performed on 58 hips, including alumina alternative failure in 50 hips, loosening in 4 hips, recurrent dislocation in 2 hips, stem neck fracture in 1 hip and hematoma in 1 hip. The survival rate was 68% with revision for any reason as the end point. The risk factors of implant failure are the preoperative range of motion of the hip joint and postoperative dislocation.

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