| Objective: To investigate the kinematics of the knee on the uninjured side in the hemiplegic stroke patients during abnormal gait and provide basis for rehabilitation evaluation and clinical treatment. Methods: Gait analysis was performed on 60 cases of stroke hemiplegica, and 60 cases of healthy people who matched their basic conditions by a portable Opti_Knee motion analysis system. The 6 degree of freedom kinematics of the knee on the healthy side (flexion and extension, internal and external rotation, varus and valgus rotation, front and rear displacement, upper and lower displacement, medial and lateral displacement), maximum extension angle in the stance phase and maximum flexion angle in the swing phase were evaluated. Results: As compared with the control group, the range of motion of the knee (flexion-extension, internal-external rotation and varus-valgus rotation) on the healthy side in the observation group was significantly reduced (P<0.01, 0.05). As compared with the control group, maximum extension angle and maximum flexion angle of of the knee on the uninjured side in the observation group were significantly reduced (P<0.05, 0.01). Conclusion: The analysis of the knee motion angle on the healthy side of hemiplegic patients by the opti knee motor function parameter detector can help determine the basic characteristics of hemiplegic gait and provide clinical basis for the next step of rehabilitation training. |
