Semin Musculoskelet Radiol 2018; 22(03): 354-363
DOI: 10.1055/s-0038-1648252
Review Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Nerve Entrapment in Ankle and Foot: Ultrasound Imaging

Basavaraj Chari
1   Department of Radiology, Nuffield Orthopaedic Centre, Oxford University Hospitals, Oxford, United Kingdom
,
Eugene McNally
2   Oxford Musculoskeletal Radiology, Oxford, United Kingdom
› Author Affiliations
Further Information

Publication History

Publication Date:
23 May 2018 (online)

Abstract

Peripheral nerve entrapment of the ankle and foot is relatively uncommon and often underdiagnosed because electrophysiologic studies may not contribute to the diagnosis. Anatomy of the peripheral nerves is variable and complex, and along with a comprehensive physical examination, a thorough understanding of the applied anatomy is essential. Several studies have helped identify specific areas in which nerves are commonly compressed. Identified secondary causes of nerve compression include previous trauma, osteophytes, ganglion cysts, edema, accessory muscles, tenosynovitis, vascular lesions, and a primary nerve tumor. Imaging plays a key role in identifying primary and secondary causes of nerve entrapment, specifically ultrasound (US) and magnetic resonance imaging. US is a dynamic imaging modality that is cost effective and offers excellent resolution. Symptoms of nerve entrapment may mimic other common foot and ankle conditions such as plantar fasciitis.

 
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