• Masaaki Machino, Kei Ando, Kazuyoshi Kobayashi, Masayoshi Morozumi, Satoshi Tanaka, Keigo Ito, Fumihiko Kato, Naoki Ishiguro, and Shiro Imagama.
• Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
• J Clin Neurosci. 2019 Dec 1; 70: 127-131.

AbstractA comparative study to examine the surgical outcomes of traumatic cervical myelopathy (TCM) patients was designed. The study aim was to compare the surgical outcomes between TCM and degenerative cervical myelopathy (DCM) and to characterize the preoperative symptoms and postoperative residual symptoms in TCM patients. One hundred consecutive patients with TCM (81 men, 19 women; mean age, 57.7 years; range, 31-79 years) and 100 consecutive patients with DCM (88 men, 12 women; mean age, 58.4 years; range, 36-78 years) were included in this study. All patients were treated by laminoplasty. The pre- and postoperative neurological statuses were evaluated according to the Japanese Orthopaedic Association (JOA) scoring system for cervical myelopathy. The recovery rate (RR) of each function was compared between the two groups. The mean preoperative JOA scores of motor function of the upper extremity in the TCM and DCM groups were 1.9 and 2.3, respectively (P < 0.01). After surgery, the mean RRs of motor function of the upper extremity in the TDM and DCM groups were 36.4% and 55.7%, respectively (P < 0.01) and in the lower extremity were 32.3% and 46.5%, respectively (P < 0.05). The RR for sensory function of the lower extremity was significantly lower in TCM patients than in DCM patients (39.6 vs 68.2, respectively; P < 0.0001). Motor function impairments of the upper and lower extremities and sensory function impairments of the lower extremities after surgery were more persistent in the TCM group than in the DCM group.Copyright © 2019 Elsevier Ltd. All rights reserved.

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