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Natural History of the Elbow Bony Architecture in Patients With Obstetric Brachial Plexus Injury and the Association With Flexion Contractures

Wagner, Eric R., MD, MS; Werthel, Jean-David, MD; Ansari, Mohammad, MD; Shaughnessy, William, MD; Elhassan, Bassem L., MD

JAAOS - Journal of the American Academy of Orthopaedic Surgeons: December 1, 2018 - Volume 26 - Issue 23 - p e490–e495
doi: 10.5435/JAAOS-D-17-00110
Research Article

Purpose: The purposes of this study were to evaluate the radiographic anatomy of the elbow and try to determine its possible relation to elbow flexion contracture in patients with obstetric brachial plexus injury (OBPI).

Methods: All patients with a history of OBPI with elbow flexion contracture who were evaluated clinically and radiographically were included in the study. A review was performed to include serial elbow examinations and previous treatment. Radiographs of the elbow were examined for the presence of bony abnormalities as a potential cause of elbow flexion contracture or the presence of progressive arthritic changes over time.

Results: Fifty-nine patients with a history of OBPI with elbow flexion contracture were included in the study. Of them, 53 had normal bony architecture, 2 had mild radial head subluxation, and 4 had chronic anterior radial head dislocations. At a mean age at final clinical follow-up of 21 years (range, 7 to 83 years), only 7% of patients had pain localized to their elbow. There were only three patients with elbow arthritis, including two of the four with radial head dislocations.

Conclusions: In the absence of a radial head dislocation, most elbow joints do not seem to undergo abnormal anatomic bony changes in patients with OBPI and flexion contractures.

Level of Evidence: Level IV (retrospective case series)

From the Department of Orthopaedic Surgery, Mayo Clinic, Rochester, MN.

Correspondence to Dr. Elhassan: Elhassan.Bassem@mayo.edu

None of the following authors nor any immediate family member has received anything of value from or has stock or stock options held in a commercial company or institution related directly or indirectly to the subject of this article: Dr. Wagner, Dr. Werthel, Dr. Ansari, Dr. Shaughnessy, and Dr. Ehassan.

© 2018 by American Academy of Orthopaedic Surgeons
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