Femoroacetabular impingement: normal values of the quantitative morphometric parameters in asymptomatic hips.

Détails

ID Serval
serval:BIB_776508CCB0BD
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Femoroacetabular impingement: normal values of the quantitative morphometric parameters in asymptomatic hips.
Périodique
European Radiology
Auteur(s)
Lepage-Saucier M., Thiéry C., Larbi A., Lecouvet F.E., Vande Berg B.C., Omoumi P.
ISSN
1432-1084 (Electronic)
ISSN-L
0938-7994
Statut éditorial
Publié
Date de publication
2014
Peer-reviewed
Oui
Volume
24
Numéro
7
Pages
1707-1714
Langue
anglais
Notes
Publication types: Journal Article Publication Status: ppublish
Résumé
OBJECTIVE: To determine the means and the reference intervals of the quantitative morphometric parameters of femoroacetabular impingement (FAI) in normal hips with high-resolution computed tomography (CT).
METHODS: We prospectively included 94 adult individuals who underwent CT for thoracic, abdominal or urologic pathologies. Patients with a clinical history of hip pathology and/or with osteoarthritis on CT were excluded. We calculated means and 95 % reference intervals for imaging signs of cam-type (alpha angle at 90° and 45° and femoral head-neck offset) and pincer-type impingement (acetabular version angle, lateral centre-edge angle and acetabular index).
RESULTS: The 95 % reference interval limits were all far beyond the abnormal thresholds found in the literature for cam-type and to a lesser extent for pincer-type FAI. The upper limits of the reference intervals for the alpha angles (at 90°/45°) were 68°/83° (men) and 69°/84° (women), compared to thresholds from the literature (50°, 55° or 60°). Reference intervals were similar between genders for cam-type parameters, and slightly differed for pincer-type.
CONCLUSION: The 95 % reference intervals of morphometric measurements of FAI in asymptomatic hips were beyond the abnormal thresholds, which was especially true for cam-type FAI. Our results suggest the need for redefining the current morphometric parameters used in the diagnosis of FAI.
KEY POINTS: ? 95 % reference intervals limits of FAI morphotype were beyond currently defined thresholds. ? Reference intervals of pincer-type morphotype measurements were close to current definitions. ? Reference intervals of cam-type morphotype measurements were far beyond the current definitions. ? Current morphometric definitions of cam-type morphotype should be used with care.
Pubmed
Web of science
Création de la notice
04/07/2014 17:38
Dernière modification de la notice
03/03/2018 18:27
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