Cranial acetabular osteophytes limits the maximal amplitude of hip abduction

摘要: The aim of this study was to establish a relationship between the existence cranial acetabular osteophytes (CAO) in hip joints showing varying degrees degenerative alterations and range maximal abduction. Seventy-six from 38 patients (42–82 years old) expecting joint replacement because primary osteoarthritis (OA) were examined; out those, 50 showed different levels OA according American College Rheumatology criteria. radiological evaluation included measurement length CAO amplitude “free angle” (FA, centered femoral head), remaining lateral extremity point where neck would hit during passive motion (ROPM) for abduction assessed using goniometer. correlation calculated with Pearson coefficient. ROPM negatively correlated (r = −0.50; P < 0.01) positively FA 0.60; 0.01). data suggest that plays key role limit may be useful measures predict function