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目的 探讨个性化导板在下颈椎侧块螺钉内固定术中的应用效果.方法 行颈椎后路侧块螺钉内固定术患者20例均分为两组:观察组在个性化导板辅助下行颈椎后路侧块螺钉内固定术;对照组在传统X射线辅助下行颈椎后路侧块螺钉内固定术.比较两组手术相关资料.结果 与对照组比较,观察组手术时间较短[(115.5±21.8)min vs.(135.7±28.0)min]、术中出血量较少[(180.5±20.4)ml vs.(230.5±25.1)ml]、术中透视次数较少[(2.6±0.8)次vs.(4.0±1.1)次](P＜0.05).两组患者术后2、8周颈椎VAS疼痛评分降低,日本骨科协会评分增加(P＜0.05).结论 个性化导板辅助侧块螺钉用于下颈椎内固定手术,可以缩短手术时间,减少术中透视次数和出血量.“,”Objective To explore the efficacy of internal fixation with customized guild plate with lateral mass screw for lower cervical spine.Methods The lateral mass pedicle screw fixation for lower cervical spine was performed in 20 patients,who were randomly divided into two groups of A (assisted by customized guild plate,10 cases)and B(treated with conventional lateral mass pedicle screw fixation,10 cases).The operation-related indicators were compared between two groups.Results Compared to group B,group A had shorter operation time[(115.5 ± 21.8) min vs.(135.7 ± 28.0) min],less intraoperative blood loss[(180.5 ± 20.4) ml vs.(230.5 ± 25.1) ml] and times for intraoperative X-ray check[(2.6 ±-0.8) times vs.(4.0 ± 1.1) times] (P＜0.05).The VAS pain scores were decreased and Japanese Orthopedic Association scores were increased in the 24 and 8th weeks after surgery than before in both groups(P＜0.05).Conclusion The internal fixation with customized guild plate with lateral mass screw for lower cervical spine has the advantages of shorter operation time,less intraoperative blood loss and times for intraoperative X-ray check.