Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.clinph.2010.04.035
Title: High resolution ultrasonography in the diagnosis of ulnar nerve lesions with particular reference to post-traumatic lesions and sites outside the elbow
Authors: Ng, E.S.
Chan, Y.C.
Wilder-Smith, E. 
Vijayan, J.
Therimadasamy, A.K.
Tan, T.C. 
Lim, A. 
Keywords: High resolution ultrasonography
Nerve conduction studies
Ulnar nerve
Ulnar neuropathy
Issue Date: 2011
Source: Ng, E.S., Chan, Y.C., Wilder-Smith, E., Vijayan, J., Therimadasamy, A.K., Tan, T.C., Lim, A. (2011). High resolution ultrasonography in the diagnosis of ulnar nerve lesions with particular reference to post-traumatic lesions and sites outside the elbow. Clinical Neurophysiology 122 (1) : 188-193. ScholarBank@NUS Repository. https://doi.org/10.1016/j.clinph.2010.04.035
Abstract: Objective: Recent studies suggest that high resolution ultrasonography (HRU) is useful in evaluating ulnar neuropathy (UN) at the elbow. These studies do not include UN outside the elbow and lesions related to previous trauma. We investigate diagnostic utility of HRU in UN at any location of traumatic and non-traumatic etiology. Methods: Patients with clinically suspected and electrophysiologically defined UN at the elbow and outside the elbow were included. Nerve conduction studies (NCS) were compared with HRU. HRU defined UN in terms of change in cross-sectional area. Results: Our retrospective analysis included 46 UN. In 25 cases both NCS and HRU localised neuropathy to the elbow. In 15 where NCS was abnormal but non-localising, HRU localised the lesion in 14, 7 outside the elbow. In three of these, HRU characterised further pathology (synovial osteochondromatosis (n = 2), myositis ossificans (n = 1). Cross-sectional area of the ulnar nerve at the sulcus significantly correlated with distal NCS parameters. Conclusions: HRU is of greater use than NCS in the localisation of UN both at the elbow and outside the elbow and in UN related to previous trauma. Significance: HRU is useful for the localisation of ulnar neuropathy. © 2010 International Federation of Clinical Neurophysiology.
Source Title: Clinical Neurophysiology
URI: http://scholarbank.nus.edu.sg/handle/10635/27141
ISSN: 13882457
DOI: 10.1016/j.clinph.2010.04.035
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