Conclusion: Tramadol injected sacral canal is safe and effective.

结论: 骶管注入曲吗多是安全有效的止痛方法.

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Objective To provide anatomical evidence for clinical sacral canal injection.

目的为临床骶管注射提供解剖学依据.

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Objective : To evaluate the diagnosis and treatment of arachnoid cyst in the sacral canal.

目的: 探讨骶管内蛛网膜囊肿的诊断及治疗措施.

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Objective To explore the clinical characteristics and the treatment of arachnoid cysts in sacral canal.

目的探讨骶管蛛网膜囊肿的临床特点及治疗方法.

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