shoulder nerve injury

Shoulder nerve injuries are mostly ① traction injuries: such as injury caused by the upper limb being pulled into a belt; ② collision injuries: such as the shoulder being struck by a fast-moving car or hit by flying stones; ③ cutting injuries or gunshot wounds; ④ crush injuries: such as clavicle fractures or compression of the acromioclavicular region; ⑤ birth injuries: caused by abnormal fetal position during delivery or traction during the birth process. Shoulder neuritis is also known as neuralgic amyotrophy. Its main manifestations are pain, weakness, and muscle atrophy predominantly in the scapulohumeral muscles. Onset is acute, and the prognosis is good. Brachial plexus damage caused by cervical spondylosis is not included. It is generally classified into upper shoulder injury (Erb's injury), lower shoulder injury (Klumpke's injury), and total shoulder injury. Based on the mechanism and site of shoulder nerve injury, the following classification is made: open shoulder injury, closed (traction) brachial plexus injury, clavicular brachial plexus injury, preganglionic shoulder plexus injury (pre-ganglionic injury), postganglionic shoulder plexus injury (post-ganglionic injury), infraclavicular shoulder injury, and radiation-induced shoulder injury.