Ulnar nerve at the elbow - normative nerve conduction study.

A goal of our work was to perform nerve conduction studies (NCSs) of the ulnar nerve focused on the nerve conduction across the elbow on a sufficiently large cohort of healthy subjects in order to generate reliable reference data. We examined the ulnar nerve in a position with the elbow flexion of 90o from horizontal. Motor response was recorded from the abductor digiti minimi muscle (ADM) and the first dorsal interosseous muscle (FDI). In our sample of 227 healthy volunteers we have examined 380 upper arms with the following results: amplitude (Amp)-CMAP(wrist) for ADM 9.6 ± 2.3 mV, MNCV at the forearm 60.4 ± 5.2 m/s, MNCV across the elbow 57.1 ± 5.9 m/s. Our study showed that motor NCSs of the ulnar nerve above elbow (AE) and below elbow (BE) in a sufficiently large cohort using methodology recommended by AANEM gave results well comparable for registration from FDI and ADM.

Citation

Edvard Ehler, Petr Ridzoň, Pavel Urban, Radim Mazanec, Marie Nakládalová, Bohumír Procházka, Hana Matulová, Jan Latta, Pavel Otruba. Ulnar nerve at the elbow - normative nerve conduction study. Journal of brachial plexus and peripheral nerve injury. 2013 Feb 11;8(1):2

PMID: 23398737

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