pISSN 2093-3665
eISSN 2093-3673
pISSN 2093-3665
eISSN 2093-3673
Incidence and variations of the musculocutaneous nerve within the arm
| Male | Female | Total | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Right (n=30) | Left (n=30) | All (n=60) | Right (n=20) | Left (n=20) | All (n=40) | Right (n=50) | Left (n=50) | |||
| Presence of MCN | 26 (86.7) | 28 (93.3) | 54 (90.0) | 17 (85.0) | 19 (95.0) | 36 (90.0) | 43 (86.0) | 47 (94.0) | ||
| Absence of MCN | 4 (13.3) | 2 (6.7) | 6 (10.0) | 3 (15.0) | 1 (5.0) | 4 (10.0) | 7 (14.0) | 3 (6.0) | ||
| Abnormal origin MCN | 0 (0) | 0 (0) | 0 (0) | 1 (5.0) | 0 (0) | 1 (2.5) | 1 (2.0) | 0 (0) | ||
| MCN piercing CBM | 21 (70.0) | 21 (70.0) | 42 (70.0) | 14 (70.0) | 15 (75.0) | 29 (72.5) | 35 (70.0) | 36 (72.0) | ||
| No CBM piercing | 5 (16.7) | 7 (23.3) | 12 (20.0) | 3 (15.0) | 4 (20.0) | 7 (17.5) | 8 (16.0) | 11 (22.0) | ||
| MCN supplying CBM | 23 (76.7) | 25 (83.3) | 48 (80.0) | 15 (75.0) | 17 (85.0) | 32 (80.0) | 38 (76.0) | 42 (84.0) | ||
Data are expressed as number (%). MCN, musculocutaneous nerve; CBM, coracobrachialis muscle.
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