Objective To analyse the general and spinal canal anesthesia used in the old patients with orthopaedic surgery on postoperative cognitive function and the inlfuence of mental state.Methods 80 patients undergoing elective elderly orthopaedic surgery, were randomly divided into two groups, 40 cases in each group, spinal canal anesthesia were taken respectively (observation group) and general anesthesia(control group). On two groups of patients with postoperative cognitive function and mental state of situation analysis comparison.Results Observation group of patients with dementia and cognitive impalrment was signiifcantly lower than the control group(P<0.05).Conclusion Compared with systemic anesthesia, the use of spinal canal anesthesia of the lower incidence of dementia and cognitive impalrment, is worth popularization in clinical application.%目的：分析全麻与椎管内麻醉应用在老年骨科手术患者对其术后认知功能及精神状态的影响。方法80例择期老年骨科手术患者，随机分为两组，每组40例，分别采取椎管内麻醉（观察组）与全麻（对照组）。对两组患者的术后认知功能和精神状态情况进行分析对比。结果观察组患者的神经错乱和认知障碍发生率明显低于对照组（P<0.05）。结论相比于全身麻醉，采用椎管内麻醉的神经错乱和认知障碍发生率更低，值得在临床应用上推广。
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