TABLE II.

Retear Rate Comparisons Between Controls and Augmented Rotator Cuff Repairs

Group/Comparison	N (shoulders)	Retears (n, %)	Risk Ratio (95% CI)	p	I2 (%)
Control	648	173 (26.7)	—	—	—
All augmented vs. control	662	98 (14.8)	0.62 (0.50-0.76)	<0.0001	8
PRP vs. control	399	54 (13.5)	0.64 (0.49-0.84)	0.001	0
Patch vs. control	153	27 (17.6)	0.55 (0.31-0.97)	0.04	35
Other vs. control	110	17 (15.5)	0.57 (0.29-1.12)	0.08	44

CI = confidence interval, and PRP = platelet-rich plasma.

Subgroup difference: p = 0.048

Random-effects model (no continuity correction). Liu PRP arms separate. 20 RCTs, 40 arms, 1,310 shoulders.