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

Group	Collagen fibre density	Collagen fibre orientation	Bone-tendon interface	Vascularity	Inflammation	Total
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)

Data presented are the mean of both scorers ±SEM. One-way ANOVA with post hoc Tukey’s test. N = 2

*p < 0.05 compared to sham