Mechanical Properties of Human Lumbar Spine Motion Segments—Part I: Responses in Flexion, Extension, Lateral Bending, and Torsion

[+] Author and Article Information
A. B. Schultz, D. N. Warwick

Department of Materials Engineering, University of Illinois at Chicago Circle, Chicago, Ill. 60680

M. H. Berkson

Department of Orthopaedic Surgery, Presbyterian-St. Luke’s Hospital, Chicago, Ill. 60612

A. L. Nachemson

Department of Orthopaedic Surgery I, University of Goteborg, Sahlgren Hospital, Goteborg, Sweden

J Biomech Eng 101(1), 46-52 (Feb 01, 1979) (7 pages) doi:10.1115/1.3426223 History: Received August 29, 1978; Online October 21, 2010


In this first part of a three-part report, the mechanical behavior of 42 fresh human cadaver lumbar motion segments in flexion, extension, lateral bending, and torsion is examined. Motions and intradiskal pressure changes that occurred in response to these loads, with posterior elements both intact and excised, are reported.

Copyright © 1979 by ASME
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