Physical Function, Gait, and Dynamic Balance of Transfemoral Amputees Using Two Mechanical Passive Prosthetic Knee Devices

Abstract

OBJECTIVE: To investigate the effect of the 3R90 and 3R92 (Otto Bock Healthcare) mechanical passive prosthetic knee devices on the physical function, gait, and dynamic balance (sudden stop and turn) of transfemoral amputees. DESIGN: Intervention study with crossover design. SETTING: University research center. PARTICIPANTS: Men (N=5; mean age ± SD, 58.8±11.9y) with unilateral transfemoral amputation. INTERVENTION: Prosthetic knee joints (N=2; 3R90 and 3R92). Acclimatization ranged from 14 to 47 days (25.5±9.3d). MAIN OUTCOME MEASURES: Physical function, gait, dynamic balance. RESULTS: The Timed Up and Go Test, 6-Minute Walk Test, and Four Square Step Test measures improved with the 3R92. Tot..