Introduction: Both ASR hip resurfacings and stemmed ASR XL arthroplasties have failed at high rates in several published series. We assessed a single surgeon series of these arthroplasties looking to identify factors associated with their failure.
Methods: All surgeries were performed by one surgeon. Patients were evaluated clinically, radiologically and with serial cobalt and chromium ion analysis.
Results: 274 implants were analysed - 152 ASR resurfacings and 122 ASR XL implants. Thirty revisions were performed.
Conclusion: The failure rate of the ASR implant in our series is unacceptably high - its use in routine hip arthroplasty cannot be supported.
Keywords: ASR; ASR, articular surface replacement hip system; Arthroplasty; Hip; Metal on metal; MoM, metal on metal; Revision.