The Research on Kinetic Parameters of Gait Analysis in Patients with Knee Osteoarthritis / 中国运动医学杂志

ABSTRACT

Objective To investigate the changes in kinetic parameters of the major joints of the lower extremity during walking in patients with knee osteoarthritis(KOA),and explore its mechanism for clinical treatment.Methods Sixty patients with KOA in tibia-femoral joint and 30 healthy persons as control group(CON) were recruited.Patients were divided into less severe KOA group(LKOA)and more severe KOA group(MKOA)in accordance to K/L radiological grade,then the kinetic data by 3D-gait analysis system were collect.Results LKOA had more knee maximal abduction movement than MKOA and CON after heel strike(P<0.001);the knee first peak adduction movement of MKOA was significantly greater than LKOA(P<0.05)and CON(P<0.001)during medial stance phase;the knee second peak adduction movement of LKOA was significantly less than CON(P<0.05);the hip first peak adduction movement of MKOA was significantly greater than CON(P<0.05).Conclusion The more severe level of KOA in tibia-femoral joint,the more load on medial compartment of patient's knees was seen,comparing with CON,patients with KOA have greater hip abduction movement and more severe patients have less hip adduction movement.