Yoshizumi T, Murata H, Kanno H, et al. - This study was undertaken to explore the results of patients who had undergone supraclavicular scalenotomy followed by external neurolysis without rib resection for post-traumatic neurogenic thoracic outlet syndrome (NTOS). Researchers retrospectively examined patients who were treated with supraclavicular scalenotomy and neurolysis without rib resection from September 2014 to December 2019 by using the medical records and operative notes. They evaluated the patient's characteristics, clinical symptoms before treatment, operative findings, and short- and long-term outcomes. They applied a 4-grade categorization (Excellent, Good, Fair, and Poor) of patients’ subjective evaluations after surgery on the basis of modified Odom's criteria to evaluate clinical outcomes at 2 months after surgery (short-term outcomes) and 12 months later (long-term outcomes). In this study, 96 supraclavicular scalenotomies without rib resection were conducted on patients with post-traumatic NTOS. It has been reported the arm and hand symptoms are due to pressure on the brachial plexus in post-traumatic NTOS, which can stem from the swollen muscle following injuries and later from the tightness of the scarred muscle. The results showed that supraclavicular scalenotomy and external neurolysis without rib resection made sense, as they were very effective and adequate to improve symptoms of NTOS.