臂丛与周围神经（Brachial plexus and peripheral nerve）.docVIP

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臂丛与周围神经（Brachial plexus and peripheral nerve）.doc

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臂丛与周围神经（Brachial plexus and peripheral nerve）

臂丛与周围神经（Brachial plexus and peripheral nerve） Sunderland classification of 1 nerve injuries? In 1951, Sunderland proposed neural injury classification methods Degree I damage: myelin sheath injury, injury site along the nerve conduction of axons, physiological middle, axons are not broken. No Wallerian degeneration occurred. No regeneration of the nerve, no sign of Tinnel (movement forward) The second degree injury: injury of distal axonal fracture, Wallerian degeneration of the proximal one or more internodal segment degeneration, endoneurial tube intact (Schwann cell base film) provides anatomical channel intact for axonal regeneration. Neurological function can be completely restored. Third degree damage: disruption of axons and intimal tubes, but the nerve membrane remains intact. Disruption of the lining of the intima leads to structural disorders. Incomplete neurologic recovery. Fourth degree injury: the nerve membrane injury may preserve some of the outer membrane and the nerve bundle membrane, for the occurrence of neural stem disconnection. V degree of injury: complete transection of neural stem. 2 how to diagnose brachial plexus injuries? Brachial plexus injuries should be considered when the following conditions occur. The 5 major nerve in the upper limb (axillary nerve, musculocutaneous nerve, median nerve, ulnar nerve and radial nerve) showed the joint injury of any 2 nerves (excluding the same plane cutting injury); Any of the 3 major nerves of the hand (median, ulnar, radial, or radial), either side or elbow joint dysfunction; The 3 major nerves of the hand (median nerve, ulnar nerve and radial nerve) combined with medial forearm cutaneous nerve dysfunction. The composition of the 3 brachial plexus? The brachial plexus is composed of the anterior branches of C5-8 and T1. There are 5 trunks, 3 trunks, 2 strands, 3 bundles, several major nerve trunks; C56 consists of upper stem, C7, composed of stem, C8, T1, and stem (located on the first rib surface, a