2001 Volume 50 Issue 4 Pages 1168-1171
In order to clarify characteristics of anatomic configuration of the lower extermity in patients with medial femorotibial osteoarthritis (OA), nine parameters were measured on anteroposterior radiographs of the lower extremities in the supine position in 135 Japanese female patients with OA and in 43 normal young female subjects. The results showed that the characteristics of the lower extermities in knees with OA are bowing of the femoral shaft and proximal tibia vara, with lateral offset of the tibial shaft with respect to the center of the tibial plateau. The length of the tibia was also significantly shorter in patients with OA compared with that in young normal subjects.
In younge subjects, four subjects (9%) had varus deformity, which was thought to be a risk factor of medial OA. Prophyractic treatments may be necessary in oder to prevent medial OA in such subject.
