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Anterior Interosseous Nerve Syndrome Following Shoulder ArthroscopyA Report of Three Cases
Mark Sisco, MD1; Gregory A. Dumanian, MD1
1 Division of Plastic Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, 675 North St. Clair Street, Suite 19-250, Chicago, IL 60611. E-mail address for G.A. Dumanian: gdumania@nmh.org
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Disclosure: The authors did not receive any outside funding or grants in support of their research for or preparation of this work. Neither they nor a member of their immediate families received payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity. No commercial entity paid or directed, or agreed to pay or direct, any benefits to any research fund, foundation, division, center, clinical practice, or other charitable or nonprofit organization with which the authors, or a member of their immediate families, are affiliated or associated.
Investigation performed at the Division of Plastic Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois

The Journal of Bone and Joint Surgery, Incorporated
J Bone Joint Surg Am, 2007 Feb 01;89(2):392-395. doi: 10.2106/JBJS.F.00445
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Anterior interosseous nerve syndrome is a clinical entity characterized by pain in the proximal part of the forearm and paresis of the pronator quadratus, the flexor pollicis longus, and the radial half of the flexor digitorum profundus. It was first described in association with brachial neuritis by Parsonage and Turner in 19481 and was later identified as a distinct entity by Kiloh and Nevin in 19522. Although anterior interosseous nerve syndrome often arises spontaneously, it has been associated with trauma and extrinsic compression. We report the cases of three patients in whom anterior interosseous nerve syndrome developed immediately after ipsilateral shoulder arthroscopy. The three arthroscopic procedures were performed by different surgeons. Two patients underwent subsequent exploration of the anterior interosseous nerve. All three recovered motor function nine to sixteen months after the arthroscopy.
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