Clinical Study

The Strategy and Early Clinical Outcome of Percutaneous Full-Endoscopic Interlaminar or Extraforaminal Approach for Treatment of Lumbar Disc Herniation

Figure 2

The diameter of the interlaminar window was measured as the sagittal distance between the superior edge of lower laminar bone and inferior edge of upper laminar bone and the horizontal distance between the medial of inferior facet and lateral edge of spinous process.