Why the study?
Does femoral antetorsion differ between asymptomatic volunteers and patients with different types of femoroacetabular impingement?
Does femoral antetorsion differ between asymptomatic volunteers and patients with different types of femoroacetabular impingement?
MR imaging can reproducibly measure femoral antetorsion, which is significantly larger in pincer-type compared to cam-type FAI.
MR antetorsion measurement may refine FAI subtyping on imaging; leaves open prognostic or therapeutic implications.
Femoral antetorsion can be measured rapidly and with good reproducibility with MR imaging. Patients with pincer-type FAI had a significantly larger femoral antetorsion than patients with cam-type FAI.
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Sutter et al. (2012) studied this question.
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