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.
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.
Entities:
Keywords:
ASR; ASR, articular surface replacement hip system; Arthroplasty; Hip; Metal on metal; MoM, metal on metal; Revision
Authors: Richard N de Steiger; Jacqueline R Hang; Lisa N Miller; Stephen E Graves; David C Davidson Journal: J Bone Joint Surg Am Date: 2011-12-21 Impact factor: 5.284
Authors: Gareth H Prosser; Piers J Yates; David J Wood; Stephen E Graves; Richard N de Steiger; Lisa N Miller Journal: Acta Orthop Date: 2010-02 Impact factor: 3.717