A type of hip arthroplasty in which the femoral head is shaped to receive a metal cap or resurfacing, which contrasts to a “total hip” in which the femoral head is excised and a mechanical prosthesis is put in its place.
Although there are only two level 1 clinical studies, there is fair evidence that hip resurfacing tends to produce a lesser degree of serum cobalt ions than metal-on-metal THA procedures.
Extensive acetabular inclination or version has been linked with high rates of polyethylene wear in cases of metal-on-polyethylene THAs (36) and also with high metal ion release in cases of metal-on-metal hip resurfacing.
The hip system, which previously had been available only in Europe, now gives a competitor to Smith & Nephew's Birmingham hip resurfacing system, which was received FDA approval in May 2006.
NEW YORK -- Certain DePuy Hip Implants were recalled in August 2010, owing to an exceptionally high failure rate among those who implanted with the ASR XL Acetabular Hip System or the ASR Hip Resurfacing System.