We reviewed 36 traumatic brachial plexus injury patients with C5 nerve root injury. We used the choline acetyltransferase (CAT) activity measurement as a gold standard indicator of repairability to assess the reliability of the conventional techniques (preoperative clinical, electrophysiologic, and radiologic examination and intraoperative clinical and electrophysiologic examinations). We proposed a repairability scoring system composed of the correlated conventional techniques ... إقراء المزيد