* Chief, Orthopaedic Section, Albuquerque Veterans Administration Medical Center; Assistant Professor of Orthopaedic Surgery, University of New Mexico School of Medicine, 2100 Ridgecrest Drive, S. E., Albuquerque, New Mexico 87108.
** Professor of Radiology, Cornell University Medical College; Director, Department of Radiology, Hospital for Special Surgery, 535 East 70th Street, New York, New York 10021.
† Director, Combined Fracture Service, The New York Hospital-Hospital for Special Surgery; Clinical Professor of Surgery (Orthopaedics) Cornell Medical College. Director of Hemophiliac Clinic, Hospital for Special Surgery, 525 East 68th Street, New York, New York 10021.
Reprint requests to William B. Pratt, M.D.
Received: January 5, 1981.