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Table 1 Frequency of subscapular nerves origins.

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

Upper subscapular

n (%)

From posterior cord (usual)

19 (33.9)

From axillary

3(5.4)

From PD of ST

28 (50)

From ST and MT

2 (3.6)

From others: suprascapular or C8

4 (7.1)

Lower subscapular

n (%)

From posterior cord (usual)

18 (31.6)

From axillary

31 (54.4)

From radial

1 (1.7)

From thoracodorsal

7 (12.3)

Thoracodorsal

n (%)

From posterior cord (usual)

44 (78.6)

From radial

5 (8.9)

From MT

2 (3.6)

From axillary

5 (8.9)

Accessory subscapular

n (%)

From posterior cord

12 (21.1)

From ST

6 (10.6)

From axillary

4 (7)

Absent

35 (61.3)