Research Article

The Effect of Resveratrol on Surgery-Induced Epidural Fibrosis in Laminectomy Rats

Table 1

Rydell classification.

Grade 0Epidural scar tissue was not adherent to the dura mater
Grade 1Epidural scar tissue was adherent to the dura mater but easily dissected
Grade 2Epidural scar tissue was adherent to the dura mater and difficultly dissected without disrupting the dura matter
Grade 3Epidural scar tissue was firmly adherent to the dura mater and could not be dissected