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A member asked:
What causes abnormal needle emg in latissimus dorsi muscles (on the sides- no electrical activity), upper arms/body weakness and scapular winging?
A doctor has provided 1 answer
Injury 2 the long--: --thoracic nerve of Bell. It inervates(sp) the serratus anterior which stabilizes the scapula.This wwould cause scapular winging, & poor function of the arm, ,as the function depends on a stable scapula.
Answered 7/24/2015
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