Prevalence of cam and pincer-type deformities on hip MRI in an asymptomatic young Swiss female population: a cross-sectional study

Leunig, M.; Jüni, P.; Werlen, S.; Limacher, A.; Nüesch, E.; Pfirrmann, C. W.; Trelle, S.; Odermatt, A.; Hofstetter, Wilhelm; Ganz, R.; Reichenbach, Stephan (2013). Prevalence of cam and pincer-type deformities on hip MRI in an asymptomatic young Swiss female population: a cross-sectional study. Osteoarthritis and cartilage, 21(4), pp. 544-550. Elsevier 10.1016/j.joca.2013.01.003

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OBJECTIVES Femoroacetabular impingement is proposed to cause early osteoarthritis (OA) in the non-dysplastic hip. We previously reported on the prevalence of femoral deformities in a young asymptomatic male population. The aim of this study was to determine the prevalence of both femoral and acetabular types of impingement in young females. METHODS We conducted a population-based cross-sectional study of asymptomatic young females. All participants completed a set of questionnaires and underwent clinical examination of the hip. A random sample was subsequently invited to obtain magnetic resonance images (MRI) of the hip. All MRIs were read for cam-type deformities, increased acetabular depths, labral lesions, and impingement pits. Prevalence estimates of cam-type deformities and increased acetabular depths were estimated, and relationships between deformities and signs of joint damage were examined using logistic regression models. RESULTS The study included 283 subjects, and 80 asymptomatic females with a mean age of 19.3 years attended MRI. Fifteen showed some evidence of cam-type deformities, but none were scored to be definite. The overall prevalence was therefore 0% [95% confidence interval (95% CI) 0-5%]. The prevalence of increased acetabular depth was 10% (95% CI 5-19). No association was found between increased acetabular depth and decreased internal rotation of the hip. Increased acetabular depth was not associated with signs of labral damage. CONCLUSIONS Definite cam-type deformities in women are rare compared to men, whereas the prevalence of increased acetabular depth is higher, suggesting that femoroacetabular impingement has different gender-related biomechanical mechanisms.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Knochenbiologie & Orthopädische Forschung
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Knochenbiologie & Orthopädische Forschung

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Social and Preventive Medicine
04 Faculty of Medicine > Pre-clinic Human Medicine > CTU Bern
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR)

UniBE Contributor:

Jüni, Peter; Limacher, Andreas; Nüesch, Eveline; Trelle, Sven; Hofstetter, Wilhelm and Reichenbach, Stephan

Subjects:

600 Technology > 610 Medicine & health
300 Social sciences, sociology & anthropology > 360 Social problems & social services

ISSN:

1063-4584

Publisher:

Elsevier

Language:

English

Submitter:

Beatrice Minder Wyssmann

Date Deposited:

12 Feb 2014 17:19

Last Modified:

13 Feb 2018 16:49

Publisher DOI:

10.1016/j.joca.2013.01.003

PubMed ID:

23337290

BORIS DOI:

10.7892/boris.40751

URI:

https://boris.unibe.ch/id/eprint/40751

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