Skip to main content

Table 3 Correlation of surgical ligamentum flavum thickness and fibrosis

From: The paradoxical relationship between ligamentum flavum hypertrophy and developmental lumbar spinal stenosis

  Right LF
r-value
p-value 95 % CI Left LF
r-value
p-value 95 % CI
(a) Correlation of Surgical LF Thickness and Fibrotic Grades
   Group 1 -0.29 0.028 0.24–3.26 -0.42 0.069 -0.14–3.06
   Group 2 -0.32 <0.001* 1.04–2.44 -0.22 <0.001* 0.84–2.21
   Group 3 0.49 0.18 -0.42–1.46 0.72 0.059 -0.88–2.49
(b) Correlation of Surgical LF Thickness and Area of Fibrosis (%)
   Group 1 -0.42 <0.001* -59.11–-23.73 -0.31 <0.001* -65.37–-41.31
   Group 2 -0.41 <0.001* -47.88–-34.39 -0.29 <0.001* -53.87–-38.27
   Group 3 0.65 0.008 -89.55–-29.46 0.50 0.019 -88.48–-16.41
  1. LF: ligamentum flavum, CI: confidence onterval, %: percentage, r: correlation coefficient, * significant p-value; Group 1: critical developmental spinal stenosis (DSS), Group 2: relative DSS, Group 3: Non-DSS