Ловушка для нервов: как одна маленькая мышца на лопатке выключает твою руку.

Think arm numbness is a herniated disc? More often than not, it's a biomechanical trap. Look: the infraspinatus muscle is a key external rotator of the shoulder. It attaches to the infraspinous fossa of the scapula and the greater tuberosity of the humerus. When it goes into chronic spasm, the head of the humerus displaces anteriorly and superiorly. This disrupts the entire trajectory of motion in the glenohumeral joint. As a result, the scapula becomes locked in a malposition. The distal brachial plexus (plexus brachialis) becomes compressed between the clavicle and the first rib, or under the pectoralis minor, which shortens synergistically with the infraspinatus. This causes nerve ischemia and arm weakness. How can this pathological pattern be broken? 369 108 144 358