TABLE VII.
Early Results: Time of Muscle Reinnervation Demonstrated by EMG
Case | Reinnervation* After Surgery (After Palsy Onset) (mo) | |||||
Trapezius | Deltoid | Infraspinatus† | Biceps | Grafted Muscle | Abductor Digiti Minimi† | |
1 | 5 (11.5) | 3‡, 4‡ | ||||
2 | <13 (<24) | 3 | ||||
3 | 3 (8.5) | 3 (8.5) | ||||
4 | 6.5 (14.5) | 4 (12) | 6.5 (14.5) | 2.5 (10.5) | ||
5 | 6 (12) | 7 (13) | 8 (14) | |||
6 | <6 (<16) | <6 (<16) | ||||
7 | 4 (13.5) | 4 (13.5) | ||||
8 |
The reinnervation of all muscles except 2 in Case 1 was confirmed by needle EMG.
< = far less than the estimated periods because the motor unit potentials were already mature at the time of examination.
Reinnervation was defined by visible contraction of the muscle.