The envelope of passive knee joint motion

L. Blankevoort, H.W.J. Huiskes, A. Lange, de

Research output: Contribution to journalArticleAcademicpeer-review

285 Citations (Scopus)
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Abstract

The authors' purpose is to create an accurate experimental database for the passive (in vitro) freedom-of-motion characteristics of the human knee joint on a subject to subject basis, suitable for the verification and enhancement of mathematical knee-joint models. Knee-joint specimens in a six degree-of-freedom motion rig are moved through flexion under several combinations of external loads, including tibial torques, axial forces and AP-forces. Euler rotation angles and translation vectors, describing the relative, spatial motions of the joint are measured using an accurate Roentgen Stereo Photogrammetric system. Anatomical differences notwithstanding, the inter-individual discrepancies in the motion patterns of the four specimens tested, showed to be relatively small in a qualitative sense. Quantitative differences can be explained by small differences in the alignment of the coordinate systems relative to the joint anatomy and by differences in rotatory laxity.
Original languageEnglish
Pages (from-to)705-720
Number of pages16
JournalJournal of Biomechanics
Volume21
Issue number9
DOIs
Publication statusPublished - 1988

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