Bony variations of vertebral body in the lumbar spine among patients of lumbar disc herniation and its significance on microendoscopic discectomy / 中华骨科杂志

ABSTRACT

Objective To evaluate the bony variations in lumbar vertebral body among the patients with lnmbar disc herniation and determine its significance to microendoscopic discectomy(MED). Methods The CT images of 160 patients who underwent MED for lumbar disc herniation were reviewed. Measurements of vertebral bony dimensions related to surgical procedure were recorded, which included the angle of spinal process and lamina, spinal process direction, length, thickness and angle of the laminar, facet depth, spinal process width, and the distance between facets and lamina. The relationship between the bony variations and clinical outcome was analyzed. Results The majority of anatomic parameters are greater in male patients and in L5S1 segment than those in female and in L 4-5 (P