Correlation between Lower Extremity Extensor Muscle Strength and Pain or Physical Function in Knee Osteoarthritis

Objective To investigate the relationship of lower extremity muscle strength and the pain or physical function in patients with knee osteoarthritis.Methods 25 patients with knee osteoarthritis diagnosed with have radiological and clinical data were assessed with Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and isokinetic muscle strength testing.Results The lower extremity extensor muscle strength correlated with WOMAC pain scores,WOMAC activity of daily life scores,and WOMAC total scores (P0.05).Conclusion The lower extremity extensor muscle strength correlated with the pain and physical function in patients with knee osteoarthritis.