Associations between radiographic hip OA assessed using Kellgren–Lawrence grading and hip shape characterised using statistical shape modelling in a British birth cohort
نویسندگان
چکیده
منابع مشابه
Computer-aided grading and quantification of hip osteoarthritis severity employing shape descriptors of radiographic hip joint space
A computer-based system was designed for the grading and quantification of hip osteoarthritis (OA) severity. Employing an active-contours segmentation model, 64 hip joint space (HJS) images (18 normal, 46 osteoarthritic) were obtained from the digitized radiographs of 32 unilateral and bilateral OA-patients. Shape features, generated from the HJS-images, and a hierarchical decision tree structu...
متن کاملValidation of statistical shape modelling to predict hip osteoarthritis in females: data from two prospective cohort studies (Cohort Hip and Cohort Knee and Chingford).
OBJECTIVES To prospectively investigate whether hip shape variants at baseline are associated with the need for future total hip replacement (THR) in women and to validate the resulting associated shape variants of the Cohort Hip and Cohort Knee (CHECK) cohort and the Chingford cohort. METHODS Female participants from the CHECK cohort without radiographic OA (Kellgren-Lawrence score <2) at ba...
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OBJECTIVE To test whether previously reported hip morphology or osteoarthritis (OA) susceptibility loci are associated with proximal femur shape as represented by statistical shape model (SSM) modes and as univariate or multivariate quantitative traits. METHODS We used pelvic radiographs and genotype data from 929 subjects with unilateral hip OA who had been recruited previously for the Arthr...
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OBJECTIVE To determine intra and interobserver agreement of the grading system for femoral cementation in hip arthroplasty proposed by Barrack. METHODS Immediate anteroposterior and lateral postoperative radiographs of 55 primary total hip arthroplasties were assessed by two observers familiar with the use of this grading system. The assessments were performed on two separate occasions by eac...
متن کاملLocal Shape Modelling Using Warplets
A statistical shape model for the analysis of local shape variation is developed. Overlapping contour segments are parametrically modelled using an orthogonal basis set, Legendre Polynomials, and used to estimate similarity transformations to a reference segment. The alignment regresses the model to the data by least squares fitting and is followed by a PCA of the coregistered set of contour se...
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ژورنال
عنوان ژورنال: Osteoarthritis and Cartilage
سال: 2018
ISSN: 1063-4584
DOI: 10.1016/j.joca.2018.02.841