A Cadaveric Investigation of the Dorsal Scapular Nerve

Table 1

Variation in the spinal roots and innervations of the DSN.

	and percentage
Origin
C4	5 (22%)
C5	16 (70%)
C6	2 (8%)
Route
Anterior to middle scalene m.	3 (13%)
Piercing middle scalene m.	17 (74%)
Posterior to middle scalene m.	3 (13%)
Muscles innervated
Levator scapulae m. only	11 (48%)
Levator scapulae m. & rhomboid mm.	12 (52%)
Total	23

Cadaver number () and percentage for specific spinal root origins, route, and muscles innervated for the DSN.