JBJS, December 1, 2001, Volume 83, Issue 12

In Vivo Three-Dimensional Determination of Kinematics for Subjects with a Normal Knee or a Unicompartmental or Total Knee Replacement

Douglas Dennis, MD Richard Komistek, PhD Giles Scuderi, MD Jean-Noel Argenson, MD John Insall, MD Mohamed Mahfouz, MS Jean-Manuel Aubaniac, MD Brian Haas, MD

Knee

Understanding the in vivo motions of human joints has become increasingly important. Researchers have used in vitro (cadavers), noninvasive (gait laboratories), and in vivo (fluoroscopy) approaches to assess human knee motion. Unfortunately, previous attempts have been unable to track the in vivo bearing-surface motion of the medial and lateral condyles of the normal knee in three dimensions. The objective of this study was to use fluoroscopy and computed tomography to accurately determine the three-dimensional, in vivo, weight-bearing motion of the normal knee.

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