Revisions of Metal-on-Metal Hip Resurfacing: Lessons Learned and Improved Outcome

Revisions of Metal-on-Metal Hip Resurfacing: Lessons Learned and Improved Outcome Koen A. De Smet, Catherine Van Der Straeten, Maarten Van Orsouw, Rachid Doubi, Katrien Backers, and George Grammatopoulos This retrospective, consecutive case series of a single surgeon performed between 2001 and 2010 assesses the outcome following revision of metal-on-metal hip resurfacing arthroplasties (N = 113). Mean time to revision was 31 months (0-101) after primary hip resurfacing. Malpositioning of the components with associated wear-induced soft tissue fluid collections was the most frequent factor leading to failure of a hip resurfacing arthroplasty. The mid-term outcome of the revisions was satisfactory; complications occurred in 11 patients (9.7%). Six of these patients underwent a re-revision.