Objective: To analyze the gait characteristics of lower limbs in children with spastic cerebral palsy by three-dimensional gait analysis and provide quantitative evaluation basis for rehabilitation of lower limb function in children with cerebral palsy. Methods: Ten children with cerebral palsy in our hospital were selected as the treatment group, and 12 healthy children as the control group. The gait time and space parameters and kinematics parameters of the 2 groups were collected by three-dimensional motion capture system. Before and after training for 1 month, the treatment group was assessed by gross motor function measure (GMFM), Berg balance scale (BBS), modified Ashworth Scales scores (MAS) and three-dimensional gait analysis system. Result: After one month of treatment, GMFM and BBS scores in the treatment group were significantly higher than those before treatment (both P<0.01), and MAS scores were significantly lower than those before treatment (P<0.01). The gait cycle and stride time in the treatment group were significantly lower than those before treatment (both P<0.05), and the stride frequency, stride length, stride length, joint mobility and maximum flexion angle of hip and knee joint and joint mobility of ankle joint were significantly increased as compared with those before treatment (P<0.05, 0.01). As compared with the control group before and after treatment, the step frequency, pace, stride length and step length in the treatment group were significantly reduced (all P<0.01). Except for the maximum angle difference of knee joint flexion, the remaining kinematic parameters of the hips, knees and ankle joints were significantly increased (all P<0.01). Conclusion: Three-dimensional gait analysis can quantify the function of lower limb movement in children with cerebral palsy, and can provide objective scientific basis for the precise formulation of rehabilitation treatment and the evaluation of efficacy. |