Failure of larger-diameter metal-on-metal total hip arthroplasty resulting from anterior iliopsoas impingement.
Anterior 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.
Department of Orthopaedics, University of Virginia, Charlottesville, VA 22908, USA.
James A
JA
Browne
David J
DJ
Polga
Rafael J
RJ
Sierra
Robert T
RT
Trousdale
Miguel E
ME
Cabanela
D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D005260:Female; D057925:Femoracetabular Impingement / Q000150:complications*; D006119:Groin; D006621:Hip Joint / Q000601:surgery; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008670:Metals; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000601:surgery; D010149:Postoperative Pain / Q000209:etiology; D011474:Prosthesis Design / Q000009:adverse effects*; D011475:Prosthesis Failure / Q000209:etiology*; D016658:Psoas Muscles / Q000503:physiopathology*; D012086:Reoperation; D016896:Treatment Outcome
D008670:Metals