Titre
Quantitative measures for evaluating the radiographic outcome of Legg-Calvé-Perthes disease.
Type
article
Institution
Externe
Périodique
Auteur(s)
Shah, H.
Auteure/Auteur
Siddesh, N.D.
Auteure/Auteur
Pai, H.
Auteure/Auteur
Tercier, S.
Auteure/Auteur
Joseph, B.
Auteure/Auteur
Liens vers les personnes
ISSN
1535-1386
Statut éditorial
Publié
Date de publication
2013
Volume
95
Numéro
4
Première page
354
Dernière page/numéro d’article
361
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Résumé
BACKGROUND: Large sample sizes are needed if discrete outcome measures are used to perform outcome studies, whereas more practicable sample sizes are sufficient if continuous outcome measures are used. Recognizing the need to devise reliable continuous outcome measures for assessing the outcomes of treatment of Legg-Calvé-Perthes disease, we evaluated a method of quantifying the shape and size of the femoral head and the femoral-acetabular relationship from computer images of anteroposterior and lateral radiographs with the help of image-analysis software.
METHODS: Radiographs of 121 skeletally mature individuals with healed Legg-Calvé-Perthes disease were analyzed, and the sphericity deviation score, femoral head enlargement, femoral neck growth inhibition, and composite femoral congruency arc were calculated.
RESULTS: Each of these measurements was reproducible, with distinctly different values for hips in each of the Stulberg classes. Measures of sphericity and congruence (the sphericity deviation score and the composite femoral congruency arc) could very clearly discriminate between spherical and aspherical hips, and there was a strong correlation between these two measurements.
CONCLUSIONS: The study shows that it is possible to have reliable quantitative measures of the outcome of Legg-Calvé-Perthes disease at skeletal maturity.
METHODS: Radiographs of 121 skeletally mature individuals with healed Legg-Calvé-Perthes disease were analyzed, and the sphericity deviation score, femoral head enlargement, femoral neck growth inhibition, and composite femoral congruency arc were calculated.
RESULTS: Each of these measurements was reproducible, with distinctly different values for hips in each of the Stulberg classes. Measures of sphericity and congruence (the sphericity deviation score and the composite femoral congruency arc) could very clearly discriminate between spherical and aspherical hips, and there was a strong correlation between these two measurements.
CONCLUSIONS: The study shows that it is possible to have reliable quantitative measures of the outcome of Legg-Calvé-Perthes disease at skeletal maturity.
PID Serval
serval:BIB_6D7812AC6DDF
PMID
Date de création
2013-06-14T07:01:07.226Z
Date de création dans IRIS
2025-05-21T00:30:26Z