- Discussion:
- long thoracic nerve is derived from ventral rami of
C5,
C6, &
C7 - close to their emergence from intervertebral foramina;
- it runs downward & pases either in front of or behind
middle scalene muscle;
- it reaches upper slip of
serratius anterior muscle & descends on outer surface of this muscle, giving branches into it;
- Scapular Winging:
- most often associated with
Parsonage-Turner syndrome, a condition thought to be due to an inflammatory or immune-mediated mechanism;
- may occur from long thoracic nerve injury or from spinal accessory nerve injury (which deinnervates the
trapezius) or a dorsal scapular nerve injury;
Long Thoracic Nerve: Anatomy and Functional Assessment.
The clinical spectrum of neuralgic amyotrophy in 246 cases. van Alfen N, van Engelen BG: Brain 2006;129:438-450.
