Fig.
Femoroacetabular impingement is increasingly recognized as a source of significant morbidity.1-10 Muscle weakness is reported in 34% of patients with femoroacetabular impingement (FAI). Understanding the relationship between FAI and hip muscle weakness could lead to improved diagnosis, targeted treatments, and more accurate assessment of a patient’s response to treatment. Mayne et al11 conducted a systematic review of the literature on measurement of muscle strength in patients with FAI and other hip pathologies. A total of 29 studies published between 2000 and 2007 in which hip muscle strength was measured were identified. Only two studies evaluated hip muscle weakness and FAI or hip pain. In total, 26 studies examined methods of strength measurement. On the basis of this review, the authors made recommendations to standardize protocols for hip strength measurement for future studies.11
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