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Table 4 Semiquantitative evaluation of tendon alterations in men 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

1 (11.1%)

2 (22.2%)

5 (55.6%)

1 (11.1%)

Ground substance

3 (33.3%)

4 (44.4%)

2 (22.2%)

0 (0%)

Collagen

0 (0%)

3 (33.3%)

5 (55.6%)

1 (11.1%)

Vascularity

2 (22.2%)

5 (55.6%)

0 (0%)

2 (22.2%)

  1. Data are absolute values and percentages of positively stained cells in men’s samples for the 4 parameters of the Bonar Scale