From *The Hip Surgery Unit, Institute of Orthopaedics Carlos E. Ottolenghi, Italian Hospital in Buenos Aires, Buenos Aires, Argentina; and the †Departments of Pathology and Orthopaedic Surgery, State University of New York Health Science Center at Brooklyn, Brooklyn, NY.

Received: February 1, 2007

Revised: April 21, 2007; May 24, 2007

Accepted: June 13, 2007

Each author certifies that he or she has no commercial associations (eg, consultancies, stock ownership, equity interest, patent/licensing arrangements, etc) that might pose a conflict of interest in connection with the submitted article.

Each author certifies that his or her institution has approved the human protocol for this case report and that all investigations were conducted in conformity with ethical principles of research.

Correspondence to: Martin A. Buttaro, MD, The Hip Surgery Unit, Institute of Orthopaedics Carlos E. Ottolenghi, Italian Hospital in Buenos Aires, Potosí 4215 (C1199ACK), Buenos Aires, Argentina. Phone/Fax: 54-11-4959-0200, ext 8314; E-mail: [email protected].