Resurfacing hip arthroplasty: High chromium concentrations observed at 24 months .
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Metal ion levels and functional results after either resurfacing hip arthroplasty or conventional metal-on-metal hip arthroplasty
Acta Orthop. 2011 Oct;82(5):559-66Exclusive Author Interview
Dr. Van Susante discusses metal ion concentrations following hip resurfacing and conventional metal-on-metal arthroplasty
82 patients requiring a total hip replacement were randomized to receive a resurfacing hip arthroplasty or a conventional uncemented metal-on-metal total hip arthroplasty. The objective of this trial was to compare both functional outcomes and cobalt and chromium blood levels. The results indicate that patients who underwent resurfacing arthroplasty had higher chromium concentrations for up to 24 months post-surgery. Additionally, cobalt concentrations were higher in the blood for 6 months. Both groups demonstrated improvements in functional outcome measurements 24 month postoperatively.
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