From the *Orthopedic Biomechanics Laboratory, Department of Orthopedic Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, and †Orthopaedic Biomechanics Laboratory, Department of Mechanical Engineering, University of California, Berkeley, California, and the Department of Orthopaedic Surgery, University of California, San Francisco, California.
Supported by a grant from the National Institutes of Health (NIH AR41481), by the Maurice E. Mueller Professorship in Biomechanics at Harvard Medical School, and the Harry and Evelyn Indursky and family orthopedic Biomechanics Laboratory at Beth Israel Hospital.
Acknowledgment date: June 19, 1995.
First revision date: March 18, 1996.
Second revision date: July 22, 1996.
Acceptance date: July 31, 1996.
Device status category: 1.
Address reprint requests to: Matthew J. Silva, PhD; Orthopedic Research Laboratory; Dept. of Orthopaedic Surgery; Washington University School of Medicine; One Barnes Hospital Plaza; St. Louis, MO 63110
