• Takahiro Ushida, Takeshi Yokoyama, Yasuyo Kishida, Mika Hosokawa, Shinichirou Taniguchi, Shinsuke Inoue, Ryuichi Takemasa, Katsutoshi Suetomi, Young-Chang P Arai, Matthew McLaughlin, and Toshikazu Tani.
• Department of Orthopaedic Surgery, Kochi Medical School, Kochi, Japan. ushidat-koc@umin.ac.jp
• Spine. 2009 Nov 1;34(23):2500-4.

Study DesignRetrospective clinical review and prospective report of postoperative delirium after cervical spine surgeries.ObjectiveTo investigate factors contributing to the development of delirium after cervical surgery and see whether amended therapeutic protocols could improve or alter postoperative outcomes.Summary Of Background DataImportant consequences of postoperative delirium for the orthopedic patients include impaired recovery and increased morbidity and mortality. Although its risk factors have been reported in orthopedic surgery, there are a very few reports regarding postoperative delirium in spine surgery.MethodsEighty-one cervical myelopathy patients were retrospectively examined about the incidence of postoperative delirium and the risk factors. Similarly, 41 patients who received postoperative care under modified protocols were prospectively examined.ResultsPostoperative delirium occurred more commonly in patients over 70 years and those with hearing impairment. Patients who received high-dose methylprednisolone (>1000 mg) demonstrated an increased incidence of postoperative delirium. Under modified protocol, we reduced the usage of methylprednisolone and encouraged free body movement with cervical orthosis immediately after surgery. The incidence of postoperative delirium was significantly lower under the modified protocol.ConclusionEarly commencement of mobilization after cervical spine surgery would be crucial to the prevention of postoperative delirium in the elderly.

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