Thoracic outlet syndromes (TOS) may induce neurologic signs, vascular pathology, and pain, but the clinical signs are often unclear. The relationship between a cervical bony abnormality is often unclear, and the investigations not always contributive. First-line treatment consists in physiotherapy. Surgery remains controversial, in both its indication as its modalities. However, well-adapted ... [Show full abstract] surgery gives a good result in 60–85% of cases.