Table 3

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

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)

Ballesteros and Ramirez Journal of Brachial Plexus and Peripheral Nerve Injury 2007 2:14   doi:10.1186/1749-7221-2-14