A member asked:

Thoracic outlet syndrome causes arm/neck pain how?

5 doctors weighed in across 2 answers
Dr. Mark Weston answered

Specializes in Orthopedic Spine Surgery

Crowding: Pressure on brachial plexus the nerves from the spinal cord to arm become a group of nerves called the brachial plexus it is compressed by a crowding from an extra rib on top of the rib cage 1st rib or extra cervical rib the working theory goes adfitionally vascular compression of brachial artery or vein can produce arm symptoms nerve pain can extend proximal to neck or distal to arm and hand.

Answered 9/6/2012

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Dr. Laurence Badgley answered

Specializes in General Practice

Tissue Pinch: Tos causes arm ; neck pain as artery ; nerves to arm impinged (pinched) between collarbone ; underlying first rib. Imo common cause weak ; deconditioned superior trapezius (st) muscle (holds up shoulder that weighs 20 lb.); from chronic head tilting to tos side. Exam of leading edges st muscles ; ultrasound of blood flow with arm use useful. Nerve tests only + when nerve dead (not usual with tos).

Answered 12/30/2016

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