Case ReportsUnusual Osteonecrosis of the Femoral Head Misdiagnosed as a Stress FractureYoon, Taek Rim; Rowe, Sung Man; Song, Eun Kyoo; Mulyadi, Dicky Author Information From the Department of Orthopaedic Surgery, Chonnam National University Hospital, Gwangju, Korea Accepted for publication March 3, 2003. The authors have received nothing of value related to the work on this project. This article does not contain information about medical devices. Reprints: Taek Rim Yoon, MD, Department of Orthopaedic Surgery, Chonnam University Hospital, 8 Hak Dong, Gwangju, 501-757, Korea (e-mail: [email protected]). Journal of Orthopaedic Trauma 18(1):p 43-47, January 2004. Buy Abstract We report a case of femoral head osteonecrosis that originally was misdiagnosed as a femoral neck stress fracture by plain radiography and magnetic resonance imaging. The correct diagnosis was made using pinhole bone scintigraphy, which revealed a completely cold lesion of the entire femoral head, confirmed by histologic examination. The patient was treated with muscle pedicle bone grafting, and 3 months postoperatively, pinhole bone scintigraphy showed improved vascularity of the femoral head. © 2004 Lippincott Williams & Wilkins, Inc.