Upper trunk thoracic outlet syndrome

Anatomically, the upper trunk is located between the anterior and medial oblique muscle abdomen, and there is no basis for compression. The cervical anterior and medial oblique tendon starting fibers are intersected at the exit of the intervertebral foramen. Wrapping is the basis of entrapment, so the author refers to the upper trunk type thoracic outlet syndrome as entrapment of cervical nerve roots 5 and 6. In the past, it has been thought that the upper trunk type of thorax outlet syndrome is rare, accounting for only 4% to 10% of the thorax outlet syndrome. In fact, the disease is clinically common. The main reason is that this type of thoracic outlet syndrome is mistakenly grouped into cervical spondylotic radiculopathy. The lesions of both are nerve root compression, and the compression sites differ only a few millimeters to one or two centimeters, which is indeed difficult to identify clinically. With the in-depth study of neck and shoulder pain, it has been found that cervical nerve root compression can not only exist independently, but also can be combined with cervical spinal cord cervical spine disease with cervical spine 5, 6 and cervical spine 5, and can also be combined Thorax exit syndrome.

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