Table 2.
Injection strategy at the last visit according to tremor etiology (n = 91).
| Treatment Indication (Muscles Injected/Limbs Injected) | |||||
|---|---|---|---|---|---|
| ET | PD | Dystonia | COT | Total | |
| Deltoid | 0/99 | 0/6 | 1/37 | 1/1 | 2/143 |
| Biceps | 10/99 | 0/6 | 3/37 | 1/1 | 14/143 |
| Triceps | 1/99 | 0/6 | 0/37 | 0/1 | 1/143 |
| Pronator teres | 4/99 | 0/6 | 5/37 | 0/1 | 9/143 |
| FCU | 94/99 | 6/6 | 34/37 | 1/1 | 135/143 |
| FCR | 92/99 | 6/6 | 26/37 | 1/1 | 125/143 |
| FDS | 3/99 | 0/6 | 4/37 | 0/1 | 7/143 |
| ADM | 0/99 | 0/6 | 1/37 | 0/1 | 1/143 |
| APB | 1/99 | 0/6 | 11/37 | 0/1 | 12/143 |
| ED | 0/99 | 0/6 | 1/37 | 0/1 | 1/143 |
| EPB | 0/99 | 0/6 | 1/37 | 0/1 | 1/143 |
| UNS extensor | 0/99 | 0/6 | 1/37 | 0/1 | 1/143 |
ET = Essential tremor, PD = Parkinson’s disease, COT = Cerebellar outflow tremor, FCU = Flexor carpi ulnaris, FCR = Flexor carpi radialis, FDS = Flexor digitorum superficialis, ADM = Abductor digiti minimi, APB = Abductor pollicis brevis, ED = extensor digitorum, EPB = Extensor pollicis brevis, UNS extensor = unspecified extensor muscle.