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Table 3 Immunoreactive score (Remmele and Stegner) after modification in consultative cooperation with Prof. Dr. A. Nerlich, MD, Pathologist (Municipal Hospital Munich, Institute of Pathology)

From: Expression of xylosyltransferases I and II and their role in the pathogenesis of arthrofibrosis

Color intensity

No stain reaction

Weak stain reaction

Moderate stain reaction

Strong stain reaction

Positive cells

0 points

0 points

0 points

0 points

No positive cells, 0 points

IRS = 0

IRS = 0

IRS = 0

IRS = 0

< 10% positive cells, 1 point

IRS = 0

IRS = 1

IRS = 2

IRS = 3

10–25% positive cells, 2 points

IRS = 0

IRS = 2

IRS = 4

IRS = 6

26–50% points positive cells, 3 points

IRS = 0

IRS = 3

IRS = 6

IRS = 9

51–100% positive cells, 4 points

IRS = 0

IRS = 4

IRS = 8

IRS = 12