1. 方法准确定位后以小切口半椎板间盘摘除术。
Methods Tick out lumbar vertebrae intervertebral discs in small wound after accurately oriented.

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2. 所有病例均整块关节突全椎板切除术。
All cases were treated with en bloc hemi-articular process laminectomy.

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3. 目的:报告作者采用的“半椎板切除管内扩大术”。
Aim: To report the "Internal Englarging plasty" performed by authors.

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4. 目的:报告作者采用的“半椎板切除管内扩大术”。
Aim: To report the "Internal Englarging plasty" performed by authors.

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