Leeden, M. van der

exion knee fl exion rotation hip fl exion factor radiographic radiographic features osteoarthritis study feature patient measurement participant result range osteophytosi femoral motion cutoff morning stiffness probability table osteophyte value symptom radiograph rom measurements <0.0001 criteria stiffness femoral buttressing rheumatology association hip adduction cohort adduction classi fication degree morning abduction discriminative ability holla accuracy classi fication index model regression articular center femoral head knee oa medial speci arthritis ficient presence test result check regression coef ficient fl attening buttressing change knee rom sensitivity hip motion fidence interval rheum ficity centre hip abduction hip stratum / osteoarthritis hip rom deviation 0.01 cartilage university gender rotation ͻ24°