Acute Liner Disassociation of a Pinnacle Acetabular Component

Abstract A primary total hip arthroplasty using a cementless Pinnacle cup and neutral Marathon polyethylene liner mated via a 32-mm cobalt chrome head to a Summit pore coated stem (Depuy, Warsaw, IN). At 23 months postoperative an acute disassociation occurred. This was resolved with a liner exchang...

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Bibliographic Details
Published in:The Journal of arthroplasty 2009-08, Vol.24 (5), p.815-818
Main Author: Mesko, J. Wesley, MD
Format: Article
Language:English
Subjects:
Acetabulum - surgery
Aged
Arthroplasty, Replacement, Hip - adverse effects
cross-linked poly
disassociation
Equipment Failure Analysis
Hip Joint - surgery
Hip Prosthesis - adverse effects
Humans
Male
Orthopedics
Osteoarthritis, Hip - surgery
Pinnacle cup
Prosthesis Design
Prosthesis Failure
Reoperation
total hip arthroplasty
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Summary:Abstract A primary total hip arthroplasty using a cementless Pinnacle cup and neutral Marathon polyethylene liner mated via a 32-mm cobalt chrome head to a Summit pore coated stem (Depuy, Warsaw, IN). At 23 months postoperative an acute disassociation occurred. This was resolved with a liner exchange to a 36-mm metal liner with a 36-mm metal head. The retrieved polyethylene liner was noted to have 3 of the 6 peripheral locking tabs sheared off.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2008.03.010