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Case Reports
Failure of larger-diameter metal-on-metal total hip arthroplasty resulting from anterior iliopsoas impingement.
- James A Browne, David J Polga, Rafael J Sierra, Robert T Trousdale, and Miguel E Cabanela.
- Department of Orthopaedics, University of Virginia, Charlottesville, VA 22908, USA.
- J Arthroplasty. 2011 Sep 1; 26 (6): 978.e5-8.
AbstractAnterior iliopsoas impingement is a recognized cause of persistent groin pain after total hip arthroplasty. We report 3 patients with failed total hip arthroplasties resulting from anterior iliopsoas and capsular impingement secondary to a metal femoral ball with a diameter larger than the native femoral head. All patients had the same implant design. Resolution of symptoms occurred in all patients after revision surgery. To our knowledge, this is the first report of this potential failure mechanism with these large-diameter implant designs and should be considered in the appropriate clinical scenario.Copyright © 2011 Elsevier Inc. All rights reserved.
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