Thoracodorsal nerve conduction study.
There is no nerve conduction study for the thoracodorsal nerve in the literature. A conduction study for this nerve is described. Thirty healthy adults (16 males) with a mean age of 41.5 +/- 10.6 (range, 22-63) years were studied. The thoracodorsal nerve was stimulated at axilla and Erb's point with recording over the latissimus dorsi. The latency was 1.9 +/- 0.4 (range, 1.2-2.7) ms and 3.6 +/- 0.4 (range, 2.8-4.5) ms for the axillary and Erb's stimulations, respectively. The amplitude of the compound muscle action potential was 4.1 +/- 1.8 mv on the right and 3.9 +/- 1.4 mv on the left. The compound muscle action potential ratio was 0.8 +/- 0.12 (range, 0.55-0.99). This study may be useful to evaluate the integrity of the thoracodorsal nerve and to assist in the diagnosis and prognosis of brachial plexus injury.
Wu
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PB
Department of Functional Restoration, Stanford University Medical Center, California 94305, USA.
Robinson
T
T
Kingery
W S
WS
Date
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ES
D000200:Action Potentials / Q000502:physiology; D000328:Adult; D001415:Back / Q000294:innervation*; D001917:Brachial Plexus / Q000502:physiology*; D020968:Brachial Plexus Neuritis / Q000175:diagnosis; D004558:Electric Stimulation / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology; D009431:Neural Conduction / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D012016:Reference Values; D013909:Thorax / Q000294:innervation*