From the Department of Orthopaedics, Duke University, Durham, NC (Dickens), the Department of Orthopaedics, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden (Dickens), the Department of Surgery, USU-WRNMMC, Bethesda, MD (Dickens, Hoyt, Kilcoyne, and LeClere), the Department of Orthopaedics, James A Lovell Federal Health Care Center, North Chicago, IL (Hoyt), and the Department of Orthopaedic Sports Medicine, US Naval Academy, Annapolis, MD (LeClere).
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