From the *Orthopaedic Biomechanics Laboratory, Minneapolis Medical Research Foundation, †University of Minnesota Medical School, and ‡Department of Orthopaedic Surgery, University of Minnesota, Minneapolis, MN; §Center for Diagnostic Imaging, St. Louis Park, MN; and ¶Midwest Spine Institute, Stillwater, MN.
Acknowledgment date: February 13, 2003. First revision date: June 20, 2003. Acceptance date: August 26, 2003.
Supported by the Midwest Orthopaedic Research Foundation and grants from AO North America and the Minnesota Medical Foundation.
The manuscript submitted does not contain information about medical device(s)/drug(s).
Foundation funds were received in support of this work. No benefits in any form have been or will be received from a commercial party related directly or indirectly to the subject of this manuscript.
Address correspondence to Brian P. Beaubien, BME, Orthopaedic Biomechanics Laboratory, Minneapolis Medical Research Foundation, 914 S. 8th Street, Minneapolis, MN 55404; e-mail: [email protected].