Objective to provide anatomical basis for the sacral anesthesia.
目的为骶管阻滞麻醉提供解剖学依据。
Conclusion: Skillful operation and observation is the key to reduce the complication in sacral anesthesia.
结论：熟练的操作和严密观察是预防骶管麻醉并发症的关键。
Objective: To explore the effective method for preventing and treating the complications in sacral anesthesia.
目的：探讨骶管麻醉并发症的有效防治措施。
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