Metal ion levels and functional results after either resurfacing hip arthroplasty or conventional metal-on-metal hip arthroplasty.

The functional results—tested by validated functional scales—showed a highly significant postoperative improvement in both groups, which is in line with other studies ( Pollard et al. 2006 , Vail et al. 2006 , Fowble et al. 2009 , Mont et al. 2009 , Garbuz et al. 2010 , Lavigne et al. 2010 , Stulberg et al. 2010 , Vendittoli et al. 2010 ).

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