Stiffness of the ligaments of the human wrist joint

H.H.C.M. Savelberg, J.G.M. Kooloos, H.W.J. Huiskes, J.M.G. Kauer

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Abstract

The stiffnesses of the superficial ligaments of 14 human cadaver wrist joints have been determined. In these experiments the tested, fresh-frozen carpal joints are divided into a number of bone-ligament-bone complexes, which are loaded in a tensile testing machine at a rate of 66% of the ligaments' initial length per second to a maximal strain of 15%. From the force-elongation curves and ligament dimensions the tangent moduli for the ligament-bone strips are derived. The results show that, with regard to the tangent modulus, there is not a clear differentiation among ligament strips. Only the dorsal radiotriquetrum ligament (RTD) and the palmar radiocapitate ligament (RCP) appear to consist of a material of a relatively high tangent modulus, about 93 and 83 MPa, respectively. The other seven ligaments tested have similar tangent moduli, ranging from 25 to about 50 Mpa
Original languageEnglish
Pages (from-to)369-376
JournalJournal of Biomechanics
Volume25
Issue number4
DOIs
Publication statusPublished - 1992

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