NLR value and IL-18 level and their clinical significance in patients with deep vein thrombosis after receiving the surgery for spinal degeneration.

Objective: To investigate the value of the neutrophil-to-lymphocyte ratio (NLR) and Interleukin 18 (IL-18) level in patients with deep vein thrombosis after receiving surgery for spinal degeneration; and we explore their significance in clinical practice.

Methods: This study was conducted in 296 patients who were treated in our hospital for spinal degeneration. After surgery, these patients were followed up for 1 month.

Anatomical research on strength of screw track fixation in novel cortical bone trajectory for osteoporosis lumbar spine.

Objectives: The cortical bone screw has good internal fixation effect on osteoporotic bone. In order to further increase the strength of screw track fixation in cortical bone trajectory, this study introduced a modified technique with novel insertion point and angle for cortical bone screw placement.

Methods: Cortical bone screws were placed in four dry and six wet and intact lumbar specimens according to the modified technique.

Measurement of lumbar isthmus parameters for novel starting points for cortical bone trajectory screws using computed radiography.

The current study aims to measure distance parameters in lumbar isthmus to develop new references for lumbar pedicle screw insertion. Using computed radiography, the distance between the median pedicle tangent and the isthmus lateral tangent (D1) and the isometric distance between the isthmus lateral tangent and the inferior border of transverse process (D2) were measured on 120 spine X-ray images. A derived distance D3 (equal to D2 minus 1 mm) was calculated.