方法在4例顽固性疼痛患者中，癌性疼痛2例，背部手术失败综合征2例。
Methods Among the 4 patients with intractable pain, 2 had cancer pain, 2 had failed back syndrome.
背景：神经根牵拉损伤是腰椎手术失败综合征的近期发病原因之一，但确切的病理机制尚未经证实。
BACKGROUND: Stretch injury of nerve root is one of reasons for recent onset of failed back surgery syndrome, but precise pathological mechanism has not been verified.
目的：探讨与下腰椎手术失败综合征(FBSS)有限化手术相关的定位定性诊断及手术操作方法，减少手术失败率及致残率。
Objective: the localization diagnosis and the limited surgical technique of the Failed Back Surgery Syndrome (FBSS) were studied to reduce the rates of surgical failure and maim.
目的：探讨与下腰椎手术失败综合征(FBSS)有限化手术相关的定位定性诊断及手术操作方法，减少手术失败率及致残率。
Objective: the localization diagnosis and the limited surgical technique of the Failed Back Surgery Syndrome (FBSS) were studied to reduce the rates of surgical failure and maim.
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