基于生物力学探讨恐动症对膝骨关节炎患者姿势稳定性的影响OA

Objective:To observe the difference in postural stability and lower limb joint angle between patients with different severity of Knee Osteo-arthritis(KOA,low KOA kinesiophobia and high KOA kinesiophobia)and age-matched non-KOA symptomatic patients during stairs negotiation by using three-dimensional motion analysis system.Methods:Three-dimensional motion analysis system was used to detect the differences of biome-chanical factors such as postural stability(MoS)and joint angle among 78 patients with low KOA kinesiophobia,high KOA kinesiophobia and non-KOA symptoms during stairs negotiation.Results:The sagittal and coronal MoS of patients with low and high KOA kinesiophobia were worse than those of asymptomatic people.Compared with asymptomatic people,the maximum angle of hip flexion,maximum angle of hip adduction and range of knee flexion and extension in patients with low and high KOA kinesiophobia increased.Maximum angle of ankle dorsiflexion and maximum angle of knee flexion in patients with low KOA kinesiophobia decreased;the maximum angle of knee flexion decreased in patients with low KOA ki-nesiophobia.Compared with asymptomatic people,the maximum angle of hip flexion increased in low and high KOA kinesiophobia patients,the range of motion of ankle varus increased in low KOA kinesiophobia patients,and the maximum angle of hip adduction increased in high KOA kine-siophobia patients.Conclusion:The sagittal and coronal stability of KOA patients with low and high KOA is poor,but no significant effect of KOA patients is found.