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Table 3 Semiquantitative evaluation of tendon alterations in women according to the Bonar Scale

From: The role of estrogen and progesterone receptors in the rotator cuff disease: a retrospective cohort study

Variables

Grade 0

Grade 1

Grade 2

Grade 3

Tenocytes

0 (0%)

3 (20%)

8 (53.3%)

4 (26.7%)

Ground substance

2 (13.3%)

5 (33.3%)

7 (46.7%)

1 (6.7%)

Collagen

0 (0%)

0 (0%)

12 (80%)

3 (20%)

Vascularity

4 (26.7%)

5 (33.3%)

1 (6.7%)

5 (33.3%)

  1. Data are absolute values and percentages of positively stained cells in women’s samples for the 4 parameters of the Bonar Scale: it allows a semiquantitative analysis of tendinopathy considering alterations of tenocytes, ground substance, collagen and vascularity. Each parameter is scored with a four-point scoring system, with 0 indicating healthy tissue and III highly degenerated tissue. The final score is comprised between 0 (normal tendon) and 12 (most severe abnormality detectable)