ABSTRACT
Objective To explore the lower limbs joints movement of patients with unilateral and primary artificial hip replacement in convalescence. Methods 100 cases of patients with unilateral and primary artificial hip replacement in convalescence were chosen as the ob-servation group,while 100 cases of matched healthy subjects were included as the control groups. The three-dimensional kinematics and mo-tion of lower extremities were monitored. Results The difference in operated knee flexion,operated ankle planter flexion and operated hip flexion of the observation group and the observation group were statistically significant(P<0. 05). The difference in the joint angle peak of hip backward extension of sagittal section,hip adduction of frontal plane,knee adduction of frontal plane,ankle adduction and outreach of frontal plane,hip internal rotation and extorsion of horizontal plane,ankle rotation and extorsion of horizontal plane in two groups were statisti-cally significant(P<0. 05). Conclusion There are abnormal prosthetic joint movement,limited range of operated movement in patients with unilateral and primary artificial hip replacement in convalescence,and coterminous kinematic chains appear compensatory changes,it should strengthen the muscle exercises of operated hip.