Os subepicondylare mediale ossicle as a cause for cubital tunnel syndrome: A case report

doi:10.12998/wjcc.v14.i16.120594

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World Journal of Clinical Cases

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2307-8960

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Case Report

Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Clin Cases. Jun 6, 2026; 14(16): 120594
Published online Jun 6, 2026. doi: 10.12998/wjcc.v14.i16.120594

Table 1 Electrophysiological parameters demonstrating conduction delay across the elbow consistent with mild ulnar neuropathy

Nerve	Latency (ms)	Amplitude mV (motor), µV (sensory)	Conduction velocity m/s	Interpretation
Left ulnar motor	4.8	5.2 mV	42	Conduction delay across the elbow
Left ulnar sensory	4.2	12 µV	38	Sensory conduction slowing
Median motor	3.4	8.5 mV	55	Normal
Radial sensory	2.8	18 µV	57	Normal

Normal reference values: Motor latency < 4.0 milliseconds, conduction velocity > 50 milliseconds; sensory latency < 3.5 milliseconds, amplitude > 10 µV (may vary by laboratory).

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Citation: Nallakumarasamy A, Sivakumar S, Vetrivel VN, Balaji VP, Stephen N, Jeyaraman N, Jeyaraman M. Os subepicondylare mediale ossicle as a cause for cubital tunnel syndrome: A case report. World J Clin Cases 2026; 14(16): 120594
URL: https://www.wjgnet.com/2307-8960/full/v14/i16/120594.htm
DOI: https://dx.doi.org/10.12998/wjcc.v14.i16.120594

Nallakumarasamy A, Sivakumar S, Vetrivel VN, Balaji VP, Stephen N, Jeyaraman N, Jeyaraman M. Os subepicondylare mediale ossicle as a cause for cubital tunnel syndrome: A case report. World J Clin Cases 2026; 14(16): 120594 [DOI: 10.12998/wjcc.v14.i16.120594]

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