Abstract
Gait analysis was carried out on 8 non-constrained total knee replacement patients with osteo arthrosis and an age-matched group of normals using the electro-goniometer, foot switch, force plate, foot print, cybex III. The group of patients with bilateral T. K. R. (group C) had a slightly shorter than normal step length. The groups of both side affected patients with unilaleral T. K. R. (group B) had a slightly prolonged support time of the gait cycle. On fllor reaction pattern, the each groups of patients had a decreasing peak 1 and flattening of double peak on the vertical component and the max. restraint A and the max. propulsion F on sagittal ccnnponent were decreased. The value of peak torque of knee extensor muscles was markedly reduced after total knee replacement even asymptomatic patients with excellent clinical results. The range of knee motion during level walking was quite similar to normals.
