Table 2 Definition of gross and microscopic adhesion scores.

From: Effect of statins on experimental postoperative adhesion: a systematic review and meta-analysis

First author, publication year

Gross adhesion score

Microscopic adhesion score

Javaherzadeh, 2016

0: No adhesion, 1: One adhesion band, no vessel, easily separated, 2: Two thin adhesion bands, no vessel, easily separated, 3: Three thin adhesion bands, no vessel, easily separated, 4: More than three thin adhesion bands, easily separated with no vessel or diffuse adhesion bands with vessels

0: No adhesion, 1: Fat, 2: Fat and fibrosis, 3: Fibrosis

Yilmaz, 2009

0: no uterine adhesion, 1: 1–25% involvement, 2: 26–50%, 3: 51–75%, 4: 76–100%

0: no fibrosis, 1: minimal, loose, 2: moderate, 3: florid dense

0: no adhesion, 1: filmy avascular, 2: vascular or opaque, 3: cohesive attachment of uterine horn to each other or other abdominal organs

0: no adhesion, 1: the adhesion could be separated from tissue with gentle traction, 2: the adhesion could be separated from tissue with moderate traction, 3: requiring sharp dissection

Lalountas, 2012

0: No adhesions, Single band, between viscera, or from one viscus to abdominal wall, Single band, between viscera, or from one viscus to abdominal wall, 1: Single band, between viscera, or from one viscus to abdominal wall, 2: Two bands between viscera or from viscera to abdominal wall, 3: More than two bands between viscera, or from viscera to abdominal wall, or intestinal loop forming a mass without being adherent to abdominal wall, 4: Viscera directly adherent to abdominal wall, irrespective of number and extent of adhesive bands

0: none, 1: slight, 2: moderate, 3: severe

0: Complete absence of adhesions, 1: Single band of adhesions, between viscera, or from 1 viscus to abdominal wall, 2: Two bands: between viscera or from viscera to abdominal wall, 3: More than 2 bands: between viscera, or viscera to abdominal wall, or whole of intestines forming a mass without being adherent to abdominal wall, 4: Viscera directly adherent to abdominal wall, irrespective of number and extent of adhesive bands

Lalountas, 2010

0: No adhesions, Single band, between viscera, or from one viscus to abdominal wall, Single band, between viscera, or from one viscus to abdominal wall, 1: Single band, between viscera, or from one viscus to abdominal wall, 2: Two bands between viscera or from viscera to abdominal wall, 3: More than two bands between viscera, or from viscera to abdominal wall, or intestinal loop forming a mass without being adherent to abdominal wall, 4: Viscera directly adherent to abdominal wall, irrespective of number and extent of adhesive bands

 

0: No adhesion, 1: Filmy thickness, avascular, 2: Limited vascularity, moderate thickness, 3: Well vascularized, dense thickness

SUN, 2015

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

Number of fibroblast using a light microscope at a magnification of 400

Aaron 2007

percent adhesion score based on the number of ischemic buttons with attached adhesions

Kucuk, 2007

0: No adhesions, Single band, between viscera, or from one viscus to abdominal wall, Single band, between viscera, or from one viscus to abdominal wall, 1: Single band, between viscera, or from one viscus to abdominal wall, 2: Two bands between viscera or from viscera to abdominal wall, 3: More than two bands between viscera, or from viscera to abdominal wall, or intestinal loop forming a mass without being adherent to abdominal wall, 4: Viscera directly adherent to abdominal wall, irrespective of number and extent of adhesive bands

Wu, 2016

0, no adhesion; 1, weak, mild, filmy adhesions that can be easily eliminated by manual traction; 2, moderate adhesions that were able to be eliminated by manual traction; 3, dense and firm adhesions that had to be surgically removed

Number of fibroblast using a light microscope at a magnification of 200

Gűrer, 2015

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

Grade 0: dura mater is free of scar tissue, Grade 1: only thin fibrous bands are observed between the scar tissue and the dura mater, Grade 2: continuous adherence is observed in less than two-thirds of the laminectomy defect, Grade 3: scar tissue adherence is large, affecting more than two-thirds of the laminectomy defect, or the adherence extended to the nerve roots.