Suspension Effect of the TSB BK Prosthesis

A Comparison with the PTB BK Prosthesis

Abstract

X-ray measurements were used to compare the suspension effect of a TSB below-knee prosthesis with an ICEROSS system to that of a PTB below-knee prosthesis. The suspension effect was measured as the movement of the tibia between the suspension position and the weight-bearing position. The suspension effect of the TSB prosthesis (2.53±0.90cm) was superior to that of the PTB prosthesis (3.60±0.56cm) (p<0.05). Although the suspension effect of the TSB prosthesis was less effective in reducing tibial movement in cases with stump pain or an abundance of soft tissue, a higher level of satisfaction was obtained by using the TSB prosthesis with stump socks than by using the PTB prosthesis.