Structural Preservation Percutaneous Endoscopic Lumbar Interlaminar Discectomy for L5-S1 Herniated Nucleus Pulposus

Figure 2

Intraoperative endoscopic view showing the ligamentum flavum. (a) Ligamentum flavum splitting using dissector in vertical direction. (b) Rotating and introducing the working channel bevel into the epidural space. (c) After the operation, closed ligamentum flavum splitting line was seen when the working channel was removed.

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(b)

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