Precise localization of ulnar neuropathy at the elbow

Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology
Gregor Omejec, Simon Podnar

Abstract

To report the utility of short-segment nerve conduction studies (SSNCSs) and ultrasonography (US) in the precise localization of ulnar neuropathy at the elbow (UNE) and differentiation between lesions in the retroepicondylar (RTC) groove and under the humeroulnar aponeurotic arcade (HUA; i.e., cubital tunnel). In a group of prospectively recruited patients with suspected UNE, four blinded examiners took a history and performed neurologic, electrodiagnostic (EDx) and ultrasonographic (US) examinations. Precise UNE localization was determined by SSNCSs criteria (conduction slowing and conduction block), and by US criteria (changes in cross-sectional area - CSA). Localizations obtained by EDx and US studies were compared. We included 83 patients (86 arms) with SSNCSs or US diagnosis of UNE. US confirmed the SSNCSs localization in 45%, provided localization alone in 24%, and was unable to confirm SSNCSs localization in 23% of arms. Lesions in RTC (76%) were mainly demyelinating (63%), and localized at the medial epicondyle (29%) or 2 cm proximal to it (69%). By contrast, lesions at HUA (17%) were mainly axonal (73%), and localized 2 cm (57%) or 3 cm (43%) distal to the medial epicondyle. SSNCSs and US are able to precisely localize...Continue Reading

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Citations

Mar 15, 2016·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Gregor Omejec, Simon Podnar
Sep 30, 2015·Muscle & Nerve·Simon Podnar, Gregor Omejec
Aug 1, 2015·Muscle & Nerve·Gregor Omejec, Simon Podnar
Jun 22, 2015·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Gregor Omejec, Simon Podnar
Jul 16, 2016·Journal of Neurosurgery·Simon Podnar
Aug 24, 2016·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Gregor OmejecSimon Podnar
Nov 7, 2016·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Gregor OmejecSimon Podnar
May 29, 2016·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Jonathan K SmithMark E Landau
Apr 5, 2017·Continuum : Lifelong Learning in Neurology·Lisa D Hobson-Webb, Vern C Juel
Jul 8, 2018·Muscle & Nerve·Mohammad Alrajeh, David C Preston
Dec 31, 2019·Clinical Neurophysiology Practice·Natalia L Gonzalez, Lisa D Hobson-Webb
Jan 16, 2021·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Simon Podnar
May 5, 2020·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Neil G SimonDavid C Preston
Apr 17, 2021·Clinics in Geriatric Medicine·Natalia L Gonzalez, Lisa D Hobson-Webb
Jun 1, 2021·Frontiers in Neurology·Kamal MezianOndřej Naňka
May 24, 2021·Journal of Neuroradiology. Journal De Neuroradiologie·Michael J HoJens A Petersen
Jul 8, 2021·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Luciana PelosiMichael S Cartwright
Aug 26, 2021·International Journal of General Medicine·Andrew HannafordNeil G Simon
May 16, 2021·American Journal of Physical Medicine & Rehabilitation·Shawn P JorgensenJohn Norbury

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