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Comparing Norberg angle, linear femoral overlap and surface femoral overlap in radiographic assessment of the canine hip joint
Author(s) -
Janssens L.,
De Ridder M.,
Verhoeven G.,
Gielen I.,
van Bree H.
Publication year - 2014
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/jsap.12171
Subject(s) - medicine , radiography , hip dysplasia , linear correlation , orthodontics , nuclear medicine , radiology , mathematics , statistics
OBJECTIVES The aim of this study was to compare Norberg angle, linear femoral overlap and surface femoral overlap in radiographs of hips accepted for official hip dysplasia screening . METHODS Radiographs of 100 dogs (200 hips) were reviewed. The three measurements were performed in each hip according to previously described methods and thereafter correlated . RESULTS Intra‐ and inter‐observer reliability was very high (all >85%). The linear correlation between Norberg angle and linear femoral overlap or surface femoral overlap was 0·40 and 0·41, respectively. The linear correlation between linear femoral overlap and surface femoral overlap was 0·84 . CLINICAL SIGNIFICANCE Norberg angle cannot be compared with surface femoral overlap or linear femoral overlap, and a mathematical formula could not be computed for the comparison .