Large-diameter metal-on-metal THAs may have high revision rates

By Terry Stanton

Is metal allergy to blame for pseudotumor?

Large-diameter head, metal-on-metal devices for total hip arthroplasty (THA) have gained favor for providing greater range of motion and lower rates of dislocation, but their use may incur an unacceptably high rate of early revisions, according to a study conducted in Belgium and presented by Patrick Deprez, MD, at the 2010 Annual Meeting.

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