Using a numerical method to precisely evaluate the alpha angle in a hip image

[1]  Alison C Jones,et al.  Three‐dimensional assessment of impingement risk in geometrically parameterised hips compared with clinical measures , 2017, International journal for numerical methods in biomedical engineering.

[2]  K. Sairyo,et al.  CT-based morphological assessment of the hip joint in Japanese patients: association with radiographic predictors of femoroacetabular impingement. , 2016, The bone & joint journal.

[3]  Terry K Koo,et al.  A Guideline of Selecting and Reporting Intraclass Correlation Coefficients for Reliability Research. , 2016, Journal Chiropractic Medicine.

[4]  J. Brañes,et al.  Is there a pathological alpha angle for hip impingement? A diagnostic test study , 2016, Journal of hip preservation surgery.

[5]  C. Peters,et al.  The 2015 Frank Stinchfield Award: Radiographic Abnormalities Common in Senior Athletes With Well-functioning Hips but Not Associated With Osteoarthritis , 2016, Clinical orthopaedics and related research.

[6]  J. Fripp,et al.  Automated 3D quantitative assessment and measurement of alpha angles from the femoral head-neck junction using MR imaging , 2015, Physics in medicine and biology.

[7]  F. Ergen,et al.  CT assessment of asymptomatic hip joints for the background of femoroacetabular impingement morphology. , 2014, Diagnostic and interventional radiology.

[8]  Christopher L Peters,et al.  Correlations between the alpha angle and femoral head asphericity: Implications and recommendations for the diagnosis of cam femoroacetabular impingement. , 2014, European journal of radiology.

[9]  J. Kopec,et al.  The validity of a non-radiologist reader in identifying cam and pincer femoroacetabular impingement (FAI) using plain radiography , 2016, Rheumatology International.

[10]  T. Pollard,et al.  Where is the neck? , 2014, Acta orthopaedica.

[11]  M. Mladenović,et al.  Contribution to the method for determining femoral neck axis. , 2014, Srpski arhiv za celokupno lekarstvo.

[12]  Z. Andjelković,et al.  Measuring the osteochondral connection of the femoral head and neck in patients with impingement femoroacetabular by determining the angle of 2alpha in lateral and anteroposterior hip radiographic images. , 2013, Vojnosanitetski pregled.

[13]  Michel Baylac,et al.  A three‐dimensional axis for the study of femoral neck orientation , 2012, Journal of anatomy.

[14]  Shiyi Chen,et al.  Features of acetabular labral tears on X-ray, magnetic resonance imaging and hip arthroscopy – the observational pilot study , 2012, Archives of medical science : AMS.

[15]  Reto Sutter,et al.  How useful is the alpha angle for discriminating between symptomatic patients with cam-type femoroacetabular impingement and asymptomatic volunteers? , 2012, Radiology.

[16]  P. Beaulé,et al.  Validity of the Alpha Angle Measurement on Plain Radiographs in the Evaluation of Cam-type Femoroacetabular Impingement , 2011, Clinical orthopaedics and related research.

[17]  C. Pfirrmann,et al.  Prevalence of cam‐type deformity on hip magnetic resonance imaging in young males: A cross‐sectional study , 2010, Arthritis care & research.

[18]  Tony D Goh,et al.  Computed Tomography Assessment of Hip Joints in Asymptomatic Individuals in Relation to Femoroacetabular Impingement , 2010, The American journal of sports medicine.

[19]  Justin Cobb,et al.  Cams and Pincer Impingement Are Distinct, Not Mixed: The Acetabular Pathomorphology of Femoroacetabular Impingement , 2010, Clinical orthopaedics and related research.

[20]  S. Reichenbach,et al.  An examination chair to measure internal rotation of the hip in routine settings: a validation study. , 2010, Osteoarthritis and cartilage.

[21]  M. Naito,et al.  Prevalence of femoroacetabular impingement in Asian patients with osteoarthritis of the hip , 2009, International Orthopaedics.

[22]  P. Beaulé,et al.  Comparison of MRI Alpha Angle Measurement Planes in Femoroacetabular Impingement , 2009, Clinical orthopaedics and related research.

[23]  Karen Steger-May,et al.  Radiographic Evaluation of the Hip has Limited Reliability , 2009, Clinical orthopaedics and related research.

[24]  M. Leunig,et al.  A systematic approach to the plain radiographic evaluation of the young adult hip. , 2008, The Journal of bone and joint surgery. American volume.

[25]  L. Rybak,et al.  Femoroacetabular impingement: can the alpha angle be estimated? , 2008, AJR. American journal of roentgenology.

[26]  Marc Puls,et al.  Pathomorphologic Alterations Predict Presence or Absence of Hip Osteoarthrosis , 2007, Clinical orthopaedics and related research.

[27]  S. Jacobsen,et al.  A new radiological index for assessing asphericity of the femoral head in cam impingement. , 2007, The Journal of bone and joint surgery. British volume.

[28]  J. Hodler,et al.  The contour of the femoral head-neck junction as a predictor for the risk of anterior impingement. , 2002, The Journal of bone and joint surgery. British volume.

[29]  Andrew W. Fitzgibbon,et al.  Direct Least Square Fitting of Ellipses , 1999, IEEE Trans. Pattern Anal. Mach. Intell..

[30]  U. M. Landau,et al.  Estimation of a circular arc center and its radius , 1987, Comput. Vis. Graph. Image Process..

[31]  D. Altman,et al.  STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENT , 1986, The Lancet.

[32]  K Mose,et al.  Methods of measuring in Legg-Calvé-Perthes disease with special regard to the prognosis. , 1980, Clinical orthopaedics and related research.

[33]  S. Tsukada,et al.  Correlation of alpha angle between various radiographic projections and radial magnetic resonance imaging for cam deformity in femoral head–neck junction , 2016, Knee Surgery, Sports Traumatology, Arthroscopy.

[34]  Karen Steger-May,et al.  Reliability of various observers in determining common radiographic parameters of adult hip structural anatomy. , 2011, The Iowa orthopaedic journal.

[35]  T. Youm,et al.  Femoroacetabular impingement--diagnosis and treatment. , 2010, Bulletin of the NYU hospital for joint diseases.