Stiffness of Canine Stifle Joint Ligaments at Relatively High Rates of Elongation

[+] Author and Article Information
Kiyoshi Mabuchi, Kazunori Hayatsu, Hiromichi Fujie

Department of Biomedical Engineering, School of Medicine, Kitasato University, Kanagawa, Japan 228

Makoto Yamamoto

Department of Orthopaedic Surgery, School of Medicine, Kitasato University, Kanagawa, Japan 228

J Biomech Eng 113(4), 404-409 (Nov 01, 1991) (6 pages) doi:10.1115/1.2895419 History: Received September 20, 1989; Revised May 07, 1991; Online March 17, 2008


A falling-weight impact tester was developed specifically to evaluate the tensile characteristics of animal joints at high elongation rates. The tensile force and elongation in the ligaments of the canine stifle joint were measured using a force transducer, a linear variable displacement transducer, and a digital storage oscilloscope. Stiffness and elongation rates were determined at 1 mm and at 2 mm elongation. The stiffness was calculated as the slope of the force-elongation curve, and the elongation rate was calculated as the slope of the elongation-time curve. Results demonstrated that stiffness in the canine stifle joints was not affected by the rate of elongation in the 0.1 to 1.0 m/s range.

Copyright © 1991 by The American Society of Mechanical Engineers
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