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Imaging the intermuscular septum in the context of ulnar neuropathy

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Abstract

Impingement/entrapment of the ulnar nerve by the intermuscular septum at the distal arm is a common cause of recurrent or recalcitrant ulnar neuropathy following ulnar nerve decompression or anterior transposition. Primary entrapment/impingement of the ulnar nerve along the intermuscular septum may also occur. Evaluation with both ultrasound (US) and MRI can identify entrapment of the ulnar nerve at the intermuscular septum, while dynamic assessment with US can also identify dynamic subluxation of the ulnar nerve over the intermuscular septum.

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Authors and Affiliations

  1. Musculoskeletal Imaging Division, Department of Radiology, University of Michigan Health System, Taubman Center 2910F, SPC 5326, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5326, USA

    Yoav Morag

  2. Department of Neurosurgery, University of Michigan Health System, Ann Arbor, USA

    Miriana Popadich, Kate Chang & Lynda C. Yang

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  1. Yoav Morag
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  2. Miriana Popadich
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  3. Kate Chang
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  4. Lynda C. Yang
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Correspondence to Yoav Morag.

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Morag, Y., Popadich, M., Chang, K. et al. Imaging the intermuscular septum in the context of ulnar neuropathy. Skeletal Radiol 51, 505–511 (2022). https://doi.org/10.1007/s00256-021-03835-3

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  • DOI: https://doi.org/10.1007/s00256-021-03835-3

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