Tuesday, March 12, 2013

The Results of Metal-On-Metal Hip Resurfacing in Patients Under 30 Years of Age.

    2013 Feb 20. pii: S0883-5403(13)00020-X. doi: 10.1016/j.arth.2012.07.043. [Epub ahead of print]



    Children's Hospital Los Angeles, Los Angeles, California.


    Degenerative hip conditions most commonly affect older patients. However, many cases occur in younger patients. Total hip arthroplasty is the conventional approach; however, hip resurfacing is a viable option. Fifty-three metal-on-metal resurfacings in 46 patients under age 30 were performed. Patients had a variety of etiologies, and were followed clinically and radiographically with mean follow-up of 98.2months. Clinical scores and x-rays were compared pre-operatively and post-operatively. The last follow-up SF-12 and UCLA scores significantly improved post-operatively (P<0.0001). Range of motion scores also improved (P<0.001), and the mean Harris Hip Score was 88. There were 6 revisions. The Kaplan-Meier survivorship estimate at 8years was 95%. Metal-on-metal hip resurfacing appears to be an effective procedure for younger patients. Longer-term data are needed for confirmation.

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