Femoral and tibial bone torsions associated with medial femoro-tibial osteoarthritis. Index of cumulative torsions.
Frontal plane varus deviation is one of the mechanisms hypothesized to be involved in the pathogenesis of medial compartment osteoarthritis of the knee. But only a few authors have suggested a role for tibial and femoral torsion. In the current study, CT scan was used to measure bone torsion. The torsional morphology of the lower limb was defined by the "index of cumulative torsions" (ICT). The resulting values were compared to the frontal angular deviation data. The effects of tibial and femoral torsion on the position of the lower limb during the stance phase of walking and the consequences for the knee are discussed.
Clinique chirurgicale orthopédique et traumatologique, hôpital Charles-Nicolle, 1, rue de Germont, 76031 Rouen cedex, France. Electronic address: rcot@sofcot.fr.
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Duparc
Clinique chirurgicale orthopédique et traumatologique, hôpital Charles-Nicolle, 1, rue de Germont, 76031 Rouen cedex, France.
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Thomine
Service de radiologie centrale, hôpital Charles-Nicolle, 1, rue de Germont, 76031 Rouen cedex, France.
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J
Simonet
Clinique chirurgicale orthopédique et traumatologique, hôpital Charles-Nicolle, 1, rue de Germont, 76031 Rouen cedex, France.
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Biga
D000368:Aged; D001847:Bone Diseases / Q000150:complications*; D005260:Female; D005269:Femur; D006801:Humans; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000209:etiology*; D013977:Tibia; D014102:Torsion Abnormality / Q000150:complications*
Bone torsion; CT scan; Knee; Knee osteoarthritis