Thoracic Outlet Syndrome

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Thoracic outlet syndrome

The term ‘thoracic outlet syndrome’ describes compression of the neurovascular structures as they exit through the thoracic outlet (cervicothoracobrachial region). The thoracic outlet is marked by the anterior scalene muscle anteriorly, the middle scalene posteriorly, and the first rib inferiorly. This condition has emerged as one of the most controversial topics in musculoskeletal medicine and rehabilitation [2]. This controversy extends to almost every aspect of the pathology including the definition, incidence, pathoanatomical contributions, diagnosis, and treatment.The term ‘TOS’ does not specify the structure being compressed. Investigators namely identify two main categories of TOS: the vascular form (arterial or venous), which raises few diagnostic problems, and the neurological form, which occurs in more than 95-99% of all cases of TOS. Therefore the syndrome should be differentiated by using the terms arterial TOS (ATOS), venous TOS (VTOS) or neurogenic 

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Thoracic outlet syndrome

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