Journal of Brachial Plexus and Peripheral Nerve Injury

Table 3 Percentage of BP collateral origins (usual and variable presentation).

From: Variations of the origin of collateral branches emerging from the posterior aspect of the brachial plexus

BP collateral	Usual n (%)	Variation n (%)
Long thoracic	18 (33.3)	36 (66.6)
Suprascapular	47 (82.5)	10 (17.5)
Dorsal scapular	27 (48.2)	29 (51.8)
Upper subscapular	19 (33.9)	37 (66.1)
Thoracodorsal	44 (78.6)	12 (21.4)
Inferior subscapular	18 (31.6)	39 (68.4)
Accessory subscapular	35 (61.4)*	22 (38.6)

*Absent collateral (usual)

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