High medial contact forces during gait are associated with radiographic knee oa progression over 3 years

This study examined the association between knee joint contact forces during gait and 3-year radiographic knee osteoarthritis progression. An EMG-driven model was used to obtain muscle and knee joint medial and lateral contact forces for 16 individuals with knee OA at baseline. Our results demonstrated that individuals with increased medial joint space narrowing from baseline to 3-year follow-up had, at baseline, higher medial contact forces and lower vastus lateralis forces compared to those who did not show increased medial JSN.