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Presence of Markers of Femoroacetabular Impingement in the Asymptomatic Population
Author(s) -
Raynor Charys Megan,
Bryant Dianne,
Spouge Alison,
Birmingham Trevor B,
Willits Kevin
Publication year - 2009
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.23.1_supplement.822.7
Subject(s) - femoroacetabular impingement , asymptomatic , medicine , population , physical therapy , environmental health
Purpose To determine: 1) the prevalence of femoroacetabular impingement (FAI) in asymptomatic individuals, and 2) whether there is an association between the presence of FAI and age and degenerative disease. Methods: 88 volunteers were verified as asymptomatic through physical examination and then underwent an MRI of the hip. Different criteria values were used to classify the presence or absence of cam (alpha angle of 45, 50 and 55 degrees) and pincer (centre‐edge (CE) angle of 35 and 40 degrees) impingement. Results The prevalence of FAI ranged from 23.9 to 67.0% depending on the classification criteria applied. There was no significant association between FAI and age. Prevalence of FAI, identified using high criteria values (55 degree alpha angle and 40 degree CE angle), predicts the presence of acetabular cartilage lesions. Prevalence of FAI, identified using lower criteria values, was not a significant predictor of degenerative disease. Conclusion FAI is prevalent in the asymptomatic population. Further research is necessary to verify the validity and reliability of criteria used to diagnose impingement and to determine the validity of the diagnosis. Support: AANA and SIRF. Grant Funding Source Internal