Large alpha angle (>57°) and older age were both correlated with superior and posterosuperior labral tear incidence (p< 0.05) and larger tear size (p< 0.05). Furthermore, alpha angle is significantly correlated with superior labral tear incidence in young-age subgroup (age <45 years) (p<...
Sutter R, Dietrich TJ, Zingg PO, Pfirrmann CW (2012) How useful is the alpha angle for discriminating between symptomatic patients with cam-type femoroacetabular impingement and asymptomatic volunteers? Radiology 264:514–521 Pfirrmann CW, Duc SR, Zanetti M et al (2008) MR arthrography of acetabu...
10. These hip shape variations are typically quantified by predefined radiological measurements such as the center-edge angle (CEA) and the alpha angle. However, other hip shape variants that are currently not captured by predefined radiological measurements may also play a role in the etiology of...
Jaremko JL, Mabee M, Swami VG, Jamieson L, Chow K, Thompson RB (2014) Potential for change in US diagnosis of hip dysplasia solely caused by changes in probe orientation: patterns of alpha-angle variation revealed by using three-dimensional US. Radiology 273(3):870–878 Article Google Scho...
AgricolaRWaarsingJHThomasGECam impingement: defining the presence of a cam deformity by the alpha angle: data from the CHECK cohort and Chingford cohortOsteoarthritis Cartilage201422221822524269636 (Open in a new window)PubMed(Open in a new window)Web of Science ®(Open in a new window)Google ...
The alpha angle is used as an objective representation of the prominence of the anterior femoral head-neck junction, with the more prominent the alpha angle (>50°), the greater the predisposition for impingement (Figure 9) [37], [38]. Patients with clinical symptoms of FAI have also been...
Radiology. 2006;240(3):778–785. 6. Agricola R, Waarsing JH, Thomas GE, et al. Cam impingement: defin- ing the presence of a cam deformity by the alpha angle: data from the CHECK cohort and Chingford cohort. Osteoarthritis Cartilage. 2014;22(2):218–225. 7. Siebenrock KA, Kasch...
Alpha angle and labral tearsPaul E. BeauléDepartment of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, 1250 16th Street Suite 745, Santa Monica, CA 90404, United StatesEdward ZaragozaDepartment of Radiology, David Geffen School of Medicine at UCLA, 1250 16th Street Suite 745, ...
Patients will be included if they present with radiological dysplasia (centred hip, alpha angle 43鈥 60掳, percent femoral head coverage greater than 35% measured on ultrasound) of a clinically stable hip under 3months old. Patients will be excluded if they present with clinical hip instability,...
HipMRIHerniation pitAlpha angleObjective: To evaluate the association between alpha angle and herniation pit on MRI in asymptomatic hip joints and their associations with demographic variables.Lee, EunchaeChoi, Jung-AhKorean journal of radiology: official journal of the Korean Radiological Society...