Department of Orthopaedic Surgery, the Johns Hopkins Hospital and the Good Samaritan Hospital, Baltimore, Maryland.
*Senior Orthopaedic Resident.
**Associate Professor of Orthopaedic Surgery.
Reprint requests to Andrew J. Weiland, M.D., The Good Samaritan Hospital, 5601 Lock Raven Boulevard, Baltimore, MD 21239.
Presented at the 1981 AAOS Meeting in Las Vegas, Nevada.
Received: June 15, 1981.