• Tetsuro Mazaki, Yasuo Ito, Yoshihisa Sugimoto, Koichiro Koshimune, Masato Tanaka, and Toshifumi Ozaki.
• Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho Kita-ku, Okayama, 700-8558, Japan, tetsuromazaki@yahoo.co.jp.
• Arch Orthop Trauma Surg. 2013 Oct 1;133(10):1401-5.

PurposeCervical spinal cord injury without bone and disc injury in patients with spinal cord compression is a fairly common problem in Japan. Because elderly Japanese population tend to have cervical spinal canal stenosis. However, there has been no consensus in the treatment of these patients. We conducted a prospective study to evaluate treatment outcomes and complications of these patients.MethodsTwenty-five patients had been enrolled in this study. Patients who had paralysis of ASIA impairment scale (AIS) A, B or C were included. With each new patient, we alternated whether he/she received surgical treatment (group S) or conservative treatment (group C). Eleven patients were assigned to each group. We compared the two groups' courses of treatment and complications by evaluating their neurological symptoms using the AIS and ASIA motor score (MS) documenting them at the time of injury and 3 months later.ResultsThe majority of clinical paralysis was found at the C3/4 level for both the groups. According to complications, there were seven urinary tract infections and four pneumonias in group S and one urinary tract infection and three pneumonias in group C. Both groups had an average MS of 42 at the time of injury. Three months later, the average MSs were 59 points in group S and 65 points in group C.ConclusionsIn the present study, we found no significant difference in paralysis improvement between surgical and conservative treatment, although we observed a higher frequency of complications with surgery.

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