[Thoracic Outlet Syndrome. A Study of 45 Cases Treated Between 1975 and 1993]

Since 1970 we have experience of more than 100 cases of the thoracic outlet syndrome. We have rewied 45 patients operated on between 1975 and 1993.The cause, in agreement with the literature, was in 30% a road accident (cervical spine and clavicular disease), in 54% malformations (cervical rib) with a similar frequency of involvement with neurological pathology of the upper limb.We always found a vascular symptomatology, wich increased in shoulder abduction. In 82% of the cases we found an associated neurological deficit. The diagnosis was confirmed with electromyography and arteriography.The treatment was in initially medical and in resistant case, surgery was performed. We have use a supra-clavicular approach with scalenotomy of the scalenus anterior muscle, resection of the distal part of the cervical rib or an anterior fibrous band. We did not do (first operation) a resection of the first rib throught a transaxillary approach, in order to avoid elongation of the brachialplexus roots.We found 80% good results from the opinion of the patients and after clinical examination.We have operated on 6 recurrent cases throught a supra-clavicular approach (fibrous sheath) or by trans axillary approach with resection of the first rib in case of lack of response to scalenotomy.