Femoroacetabular Impingement: Do Outcomes Reliably Improve with Surgical Dislocations?
Femoroacetabular impingement is a motion-based concept of conflict that occurs secondary to morphologic abnormalities of the proximal femur and/or acetabulum. Creating impingement-free motion through restoration of normal morphology serves as the goal of joint-preserving procedures. We retrospectively reviewed the short-term functional and radiographic outcomes of 46 patients (48 hips) with femoroacetabular impingement treated with a surgical dislocation and restoration of offset. The average Merle D’Aubigné-Postel score improved from a preoperative of 13 (range, 7–16 ± 1.7) to a postoperative score of 16.8 (range, 12–18 ± 1.3). Creating impingement-free motion via a surgical dislocation improves symptoms in patients with limited radiographic signs of arthritis who are experiencing impingement-related hip pain.
Level of Evidence: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.
KeywordsHeterotopic Ossification Femoral Neck Fracture Femoroacetabular Impingement Periacetabular Osteotomy Trochanteric Osteotomy
We thank Dr. Thaddeus Laird for his expertise and time commitment in reading and performing the arthro-MRIs.
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