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J Can Chiropr Assoc. 2016 Mar;60(1):47-56.

Extra-articular hip impingement: a narrative review of the literature.

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Assistant Professor, Director Pre-Physical Therapy Program, Division of Kinesiology and Recreation, California State University Dominguez Hills.


in English, French

There is growing subgroup of patients with poor outcomes after hip arthroscopy for intra-articular pathology suggesting unrecognized cause(s) of impingement may exist. Extra-articular hip impingement (EHI) is an emerging group of conditions that have been associated with intra-articular causes of impingement and may be an unrecognized source of pain. EHI is caused by abnormal contact between the extra-articular regions of the proximal femur and pelvis. This review discusses the most common forms for EHI including: central iliopsoas impingement, subspine impingement, ischiofemoral impingement, and greater trochanteric-pelvic impingement. The clinical presentation of each pathology will be discussed since EHI conditions share similar clinical features as the intra-articular pathology but also contain some unique characteristics.


diagnosis; extra-articular; hip pain; impingement; review


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