Table 2.
Preoperative and postoperative electromyographic evaluations
| Patient | Pre-op EMG Abductor Digiti Minimi (ADM) | Post-op EMG Abductor Digiti Minimi (ADM) | Pre-op EMG First Dorsal Interosseous (FDI) | Post-op EMG First Dorsal Interosseous (FDI) |
|---|---|---|---|---|
| 1 | 2.1 ms 5.8 mV | 2.3 ms 6.3 mV | 2.5 ms 8.5 mV | 2.7 ms 9.2 mV |
| 2 | 2.5 ms 10.9 mV | 2.7 ms 11.8 mV | 3.2 ms 13 mV | |
| 3 | 2.3 ms 13 mV | 2.6 ms 13.5 mV | 2.4 ms 15.6 mV | 2.7 ms 16.1 mV |
| 4 | 1.9 ms 9.1 mV | 2.2 ms 9.5 mV | 2.4 ms 10.8 mV | 2.7 ms 11.1 mV |
| 5 | 2.8 ms 3.3 mV | 2.9 ms 4.5 mV | 3.6 ms 6.3 mV | |
| 6 | 2.0 ms 2.7 mV | 2.9 ms 4.0 mV | Not evocable | 2.8 ms 14.8 mV |
| 7 | 2.6 ms 6.0 mV | 2.9 ms 7.9 mV | 3.2 ms 6.6 mV | |
| 8 | 2.1 ms 5.6 mV | 2.7 ms 8.1 mV | 2.7 ms 10.7 mV |
After surgery, all patients showed good distal motor latency values (all values are under 3 ms for the Abductor Digiti Minimi muscle and under 4 ms for the First Dorsal Interosseus muscle) and increased amplitudes for both muscles studied