Association between cam-type deformities and magnetic resonance imaging-detected structural hip damage: a cross-sectional study in young men

Reichenbach, Stephan; Leunig, Michael; Werlen, Stefan; Nüesch, Eveline; Pfirrmann, Christian W; Bonel, Harald; Odermatt, Alex; Hofstetter, Willy; Ganz, Reinhold; Jüni, Peter (2011). Association between cam-type deformities and magnetic resonance imaging-detected structural hip damage: a cross-sectional study in young men. Arthritis & rheumatism, 63(12), pp. 4023-4030. Hoboken, N.J.: Wiley-Blackwell 10.1002/art.30589

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Objective

Femoroacetabular impingement may be a risk factor for hip osteoarthritis in men. An underlying hip deformity of the cam type is common in asymptomatic men with nondysplastic hips. This study was undertaken to examine whether hip deformities of the cam type are associated with signs of hip abnormality, including labral lesions and articular cartilage damage, detectable on magnetic resonance imaging (MRI).

Methods

In this cross-sectional, population-based study in asymptomatic young men, 1,080 subjects underwent clinical examination and completed a self-report questionnaire. Of these subjects, 244 asymptomatic men with a mean age of 19.9 years underwent MRI. All MRIs were read for cam-type deformities, labral lesions, cartilage thickness, and impingement pits. The relationship between cam-type deformities and signs of joint damage were examined using logistic regression models adjusted for age and body mass index. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were determined.

Results

Sixty-seven definite cam-type deformities were detected. These deformities were associated with labral lesions (adjusted OR 2.77 [95% CI 1.31, 5.87]), impingement pits (adjusted OR 2.9 [95% CI 1.43, 5.93]), and labral deformities (adjusted OR 2.45 [95% CI 1.06, 5.66]). The adjusted mean difference in combined anterosuperior femoral and acetabular cartilage thickness was −0.19 mm (95% CI −0.41, 0.02) lower in those with cam-type deformities compared to those without.

Conclusion

Our findings indicate that the presence of a cam-type deformity is associated with MRI-detected hip damage in asymptomatic young men.

Item Type:

 Journal Article (Original Article)

Division/Institute:

 04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Social and Preventive Medicine (ISPM)
04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic, Interventional and Paediatric Radiology
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

UniBE Contributor:

 Reichenbach, Stephan, Nüesch, Eveline, Bonel, Harald Marcel, Hofstetter, Wilhelm (B), Jüni, Peter

ISSN:

 0004-3591

Publisher:

 Wiley-Blackwell

Language:

 English

Submitter:

 Factscience Import

Date Deposited:

 04 Oct 2013 14:21

Last Modified:

 02 Mar 2023 23:20

Publisher DOI:

 10.1002/art.30589

PubMed ID:

 21904996

Web of Science ID:

 000297458500045

BORIS DOI:

 10.7892/boris.6993

URI:

 https://boris.unibe.ch/id/eprint/6993 (FactScience: 212128)

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