View Full Version : Question about knee motion

01-04-2002, 09:20 AM
My name is Prashant Komdeur. I'm a medical student from the Netherlands and
I'm doing a research project at Baylor University Medical Center in Dallas
in the Orthopaedic Department. . I'm working on a project involving
kinematics of the knee during walking. I work with an Instrumented Spatial
Linkage Device, which is used to quantify knee motion in all six degrees-of
freedom during dynamic activities. Lafortune et al did a similar study with
bone pins in 1991 (Three-dimensional kinematics of the human knee during
walking). We seem to be getting the same knee motion patterns as they did in
their study. We also get a posterior drawer of the tibia during knee
flexion. I was taught however, that when the knee is flexed, the tibia
should experience an anterior drawer due to the femoral rollback. In the
literature we also get different views about how the femur and tibia
translate in respect to eachother. I would appreciate if someone could tell
me what the consensus is about this theory and explain to me why our data
did not support this theory? Could it be the way we fixed our coordinate
systems to the knee? Thank you for any assistance.


Prashant Komdeur
Baylor University Medical Center
Department of Orthopaedic Surgery
3500 Gaston Avenue
Dallas, Texas 75246

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