A Motion Transducer for Use in the Intact In-Vitro Human Lumbar Spine

[+] Author and Article Information
T. A. Koogle, R. L. Piziali

Department of Mechanical Engineering, Stanford University, Stanford, Calif.

D. A. Nagel

Division of Orthopaedics, Stanford University, Stanford, Calif.

I. Perkash

Spinal Cord Injury Unit, Veterans Hospital, Palo Alto, Calif.

J Biomech Eng 99(3), 160-165 (Aug 01, 1977) (6 pages) doi:10.1115/1.3426284 History: Received March 22, 1977; Online October 21, 2010


An electromechanical transducer was developed to enable measurement of the general six degree-of-freedom relative motion between lumbar vertebrae of the in-vitro human spine. The transducer system is to be used in the evaluation of various spinal fixation devices in studies of fracture dislocated spines. Preliminary testing of the system has shown it to be an accurate and general means of measuring relative spatial motion between two bodies over a limited range.

Copyright © 1977 by ASME
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