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Case Reports   |    
Snapping of the Proximal Hamstring Origin: A Rare Cause of Coxa SaltansA Case Report
Anthony Scillia, MD1; Andrew Choo, MD1; Edward Milman, MD1; Vincent McInerney, MD1; Anthony Festa, MD1
1 Office of Research, St. Joseph's Regional Medical Center, 703 Main Street, Paterson, NJ 07503. E-mail address for A. Festa: anthonyfestamd@gmail.com
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Disclosure: None of the authors received payments or services, either directly or indirectly (i.e., via his or her institution), from a third party in support of any aspect of this work. None of the authors, or their institution(s), have had any financial relationship, in the thirty-six months prior to submission of this work, with any entity in the biomedical arena that could be perceived to influence or have the potential to influence what is written in this work. Also, no author has had any other relationships, or has engaged in any other activities, that could be perceived to influence or have the potential to influence what is written in this work. The complete Disclosures of Potential Conflicts of Interest submitted by authors are always provided with the online version of the article.

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Investigation performed at Seton Hall University School of Health and Medical Sciences, South Orange, and St. Joseph's Regional Medical Center, Paterson, New Jersey

Copyright © 2011 by The Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2011 Nov 02;93(21):e125 1-3. doi: 10.2106/JBJS.J.01622
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Extract

The term “snapping bottom” was initially used by Rask1 to describe subluxation of the long head of the biceps femoris tendon at the ischial tuberosity, in what we believe to be the only reported case of this phenomenon in the literature. This entity was discovered by reproduction of the snapping during active hip flexion and with direct palpation of the snapping long head of the biceps femoris tendon over the ischial tuberosity. After unsuccessful nonoperative treatment, a tenotomy was performed; all symptoms were alleviated. There are several etiologies of the snapping hip, “coxa saltans,” which include snapping of the iliotibial band or gluteus maximus over the greater trochanter, snapping of the the iliopsoas over the iliopectineal eminence, and intra-articular lesions2. However, subluxation of the proximal hamstring origin is rarely considered in the differential diagnosis. We present the case of a woman with coxa saltans caused by subluxation of the proximal hamstring origin over the ischial tuberosity. Institutional review board approval and the patient's informed consent for publication of this information were obtained.
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