Plantar Pressures Under the Rheumatoid Foot During Walking

Plantar pressures under the foot of 106 rheumatoid feet were measured with the cooperation of affiliated hospitals. The methods used were by pedograph using foot print apparatus and measurement of plantar pressure with a transducer.1. The types of foot impressions using foot prints were larger in the order of normal type, varus type, hind-foot type, valgus type, fore-foot type, dragging foot type and non-toes type.2. In measurement of plantar pressure using transducer, the number of varus type was the largest from the form of recorded curve, followed by the normal type, and the others were in the same sequence as 1. The largest articular damage roentgenologically was found in the hind foot type and varus type.3. Plantar pressure ratios to the body weight was as follows: pressure under the forefoot was very low in A group, pressure under the heel was very low in B group. Plantar pressures of the C group were closer to the control than the other 2 groups.