BACKGROUND: The mechanism of epidural injection of collagenase to treat lumbar disc degeneration is still unclear.

背景：采用椎间盘外、硬膜外腔注射胶原酶治疗椎间盘突出症的机制，目前尚不完全清楚。

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Objective: to investigate the influential factors and clinical therapeutic effect of epidural injection of collagenase for the treatment of cervical intervertebral disc protrusion.

目的：观察胶原酶化学溶解术治疗颈椎间盘突出症的远期疗效及影响因素。

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Objective: to study the rehabilitation efficacy of collagenase injection into the lateral and anterior epidural space by intubation under ct's intervention for treatment of lumbar disc prolapse (LDP).

目的：研究CT介入下硬膜外侧前间隙置管注射胶原酶治疗腰椎间盘突出症(ldp)的康复疗效。

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