Work

Ultrasound combined with electrodiagnosis improves lesion localization and outcome in posterior interosseous neuropathy

Year: 2015

Type: article

Abstract: INTRODUCTION: Posterior interosseous nerve (PIN) syndrome is a rare compression neuropathy. Electrodiagnostic studies (EDx) combined with neuromuscular ultrasound (US) enable precise lesion localization and may improve patient outcome. METHODS: In 4 patients with finger extension weakness, US was used to accurately localize concentric electromyographic (EMG) needle placement in PIN muscles and to visualize the lesion site. RESULTS: EMG with US guidance showed decreased recruitment with abnormal configuration in PIN muscles. Active denervation was not always observed. US scanning demonstrated larger PIN diameter in the affected arm. All patients had surgical intervention to confirm EDx and US findings and had improved outcome on follow-up. CONCLUSION: These cases demonstrate the benefits of augmenting EDx with US by guiding accurate electrode localization and providing diagnostic information about lesion location.

Source: Muscle & Nerve

DOI: 10.1002/mus.24782

Authors: Yevgeniya Dvorkin Wininger, Neilly A. Buckalew, Robert A. Kaufmann, Michael C. Munin

Institution: University of Pittsburgh

Language: English

Topic: Peripheral Nerve Disorders

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: green

Funder: National Institute on Aging