The Journal of Bone and Joint Surgery (American). 2009;91:150-163.
doi:10.2106/JBJS.I.00498
© 2009 The Journal of Bone and Joint Surgery, Inc.
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An Experimental Model for Kinematic Analysis of the Knee

Jan Victor, MD, PhD1, Francis Van Glabbeek, MD, PhD2, Jos Vander Sloten, Ir, PhD3, Paul M. Parizel, MD, PhD2, Johan Somville, MD, Ir, PhD2 and Johan Bellemans, MD, PhD4

1 Department of Orthopedics, AZ St-Lucas, St-Lucaslaan, 8310 Brugge, Belgium. E-mail address: j.victor@skynet.be
2 Departments of Orthopedics (F.V.G. and J.S.) and Radiology (P.M.P.), Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium
3 Department of Mechanical Engineering, Catholic University Leuven, Celestijnenlaan 300c – bus 02419, 3001 Heverlee, Belgium
4 Department of Orthopedics, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium

The first 150 words of the full text of this article appear below.


   Introduction
 
The description of the relative motion between rigid bodies is called kinematics. The knee joint is the largest joint of the human body and has an intricate anatomy, and thus its kinematics have intrigued researchers for a long time1. Apart from direct visual observation, the most popular tool for studying the joint has been radiography. Historically, the knee has been treated as if it were a planar mechanism2. In other words, the movement of the knee was reduced to a two-dimensional projection of a three-dimensional reality. In recent years, the limitations of this methodology have become clear, with the major flaw being the inability to ascertain the location of the axes of rotation before performing kinematic analyses3. In 1983, Grood and Suntay presented a joint coordinate system that provided a geometric description of the three-dimensional rotational and translational motion between two rigid bodies, and they applied this . . . [Full Text of this Article]


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