* Associate Professor, Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Head, Section of Children's Orthopaedics, Arkansas Children's Hospital, 804 Wolfe Street, Little Rock, Arkansas 72201.
** Bayside Orthopaedic Center, P.A., 150 South Ingleside Street, Suite B, Fairhope, Alabama 36532.
† Orthopaedic-Neurological Clinic, 2907 East Joyce Street, Fayetteville, Arkansas 72701.
‡ TCS Orthopaedic Clinic, P.A., 30 Evergreen Place, 1100 North University Avenue, Little Rock, Arkansas 72207.
Reprint requests to Raymond T. Morrissy, M.D.
Received: May 7, 1980.