Fig. 5
The recovery of knee flexor strength symmetry presented as the limb symmetry index (LSI) at 12 months. The LSI mean value is presented with the standard error and a 95% confidence interval using a random effect model. A limb symmetry index of 90% is represented by the black line. Knee flexor strength at 60°/second was 89.0% ± 0.9% (95% CI 87.3; 90.7%, I2 = 66.2%) and at 180°/second 88.3% ± 1.4% (95% CI 85.5; 91.1%, I2 = 80.3%). Araki et al. 2011 A = Single-bundle; Araki et al. 2011 B; Double-bundle; Harilainen et al. 2005 A [44] = Transfix; Harilainen et al. 2005 B [44] = Interference crew; Suh et al. 2021 A [80] = Dominant leg; Suh et al. 2021 B [80] = Non-dominant leg; Tsuda et al. 2009 A [85] = Women; Tsuda et al. 2009 B [85] = Men