Table 2 Histological grading of healed rotator cuffs, as scored by a specialist musculoskeletal pathologist and an orthopaedic registrar based on the criteria set out in Table 1

6 weeks

 Sham

2.5 (±0.29)

2.5 (±0.29)

2.5 (±0.29)

2.5 (±0.29)

2.5 (±0.29)

11 (±0.91)

 Unaugmented

1.5 (±0.5)

0.75* (±0.48)

1 (±0.71)

1* (±0.41)

1* (±0)

5.25* (±1.60)

 OFM augmentation

1.25 (±0.25)

1.25 (±0.25)

1 (±0.65)

0.25* (±0.25)

1* (±0)

5.25* (±0.85)

12 weeks

 Sham

2.75 (±0.25)

2.75 (±0.25)

2 (±0.71)

1.25 (±0.48)

2 (±0)

10.75 (±1.44)

 Unaugmented

1.5 (±0.5)

0.5* (±0.29)

0.5 (±0.5)

0.5 (±0.29)

1.25 (±0.25)

4.25* (±1.60)

 OFM augmentation

2 (±0)

1.25* (±0.25)

2 (±0.41)

0.25 (±0.25)

1.5 (±0.29)

7 (±1)