Prevalence of femoroacetabular impingement in asymptomatic contralateral hips in patients with unilateral idiopathic osteoarthritis
Date
2011
Authors
Şahin, Namık
Öztürk, Alpaslan
Avcu, Bülent
Özkan, Yüksel
Journal Title
Journal ISSN
Volume Title
Publisher
Sage Publications
Abstract
Radiographic findings of femoroacetabular impingement in the contralateral asymptomatic hip of patients who had undergone total hip arthroplasty because of primary osteoarthritis (n = 44) were compared with controls (n = 40). The centre-edge angle and caput-collum-diaphyseal angle were measured and the presence of crossover sign and a prominent ischial spine noted on anteroposterior radiographs of the pelvis. The alpha-angle and offset ratio were measured on cross-table lateral radiographs of the hip. The centre-edge angle and offset ratio were significantly lower and the alpha-angle significantly higher in the study group compared with controls. While the number of cases with an abnormal centre-edge angle was similar in both groups, the numbers with an alpha-angle > 50 degrees and the number with an offset ratio <= 15 were significantly higher in the study group. It was concluded that morphological anomalies associated with femoroacetabular impingement are seen more frequently in the asymptomatic contralateral hip of patients who have undergone hip replacement for primary osteoarthritis than in controls.
Description
Keywords
Research & experimental medicine, Pharmacology & pharmacy, Hip, Hip replacement surgery, Osteoarthritis, Femoroacetabular impingement, Alpha-angle, Hip pain, Plain radiographs, Femoral-acetabular impingement, Alpha angle measurement, Head-neck junction, Radiographic evaluation, Surgical-treatment, Adult hip, Retroversion, Debridement, Reliability, Morphology
Citation
Şahin, N. vd. (2011). ''Prevalence of femoroacetabular impingement in asymptomatic contralateral hips in patients with unilateral idiopathic osteoarthritis''. Journal of International Medical Research, 39(3), 790-797.