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Etiology of TOS (all cases, n = 34).
| Surgery | Non-surgery | Total | ||||
|---|---|---|---|---|---|---|
| Nature of TOS onset | No. of plexuses (n = 12) | Percent, % | No. of plexuses (n = 22) | Percent, % | No. of plexuses (n = 34) | Percent, % |
| Traumatic | ||||||
| Motor vehicle accident | 2 | 17 | 5 | 23 | 7 | 21 |
| Industrial | 1 | 8 | 2 | 9 | 3 | 9 |
| Other | 1 | 8 | 2 | 9 | 3 | 9 |
| Not traumatic | ||||||
| Repetitive motion | 1 | 8 | 6 | 27 | 7 | 21 |
| Idiopathic | – | 0 | 2 | 9 | 2 | 6 |
| Recurrent | 4 | 33 | 5 | 23 | 9 | 26 |
| Iatrogenic | 3 | 25 | – | 0 | 3 | 9 |
