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Table 2 Clinical Outcome Measures

From: Arthroscopic microfracture with atelocollagen augmentation for osteochondral lesion of the talus: a multicenter randomized controlled trial

  Preoperativea 2-year follow-upa Difference p-value p-value§
100-mm VAS
Group 1 51.84 ± 19.98 17.25 ± 20.31 −34.59 (95% CI, −47.61 to −21.57) < 0.001 0.72
Group 2 59.11 ± 19.67 19.37 ± 18.58 − 39.74 (95% CI, − 49.83 to − 29.64) < 0.001  
HSS
Group 1 68.82 ± 11.86 93.09 ± 13.64 24.27 (95% CI, 16.49 to 32.06) < 0.001 0.14
Group 2 67.57 ± 14.74 86.09 ± 13.36 18.52 (95% CI, 11.19 to 25.86) < 0.001  
AOFAS
Group 1 72.23 ± 11.85 91.23 ± 8.62 19.00 (95% CI, 11.97 to 26.03) < 0.001 0.09
Group 2 69.30 ± 17.97 86.91 ± 10.68 17.61 (95% CI, 9.02 to 26.20) < 0.001  
  1. aThe values are given as mean ± standard deviation. †The values are given as the mean and the 95% CI in parentheses. ‡p-values are calculated comparing the 2-year follow-up and preoperative values. §p-values are calculated comparing group 1 and group 2 values. Group 1 = experimental group (microfracture + atelocollagen augmentation), Group 2 = control group (microfracture alone), VAS visual analog scale, HSS Hannover scoring system, CI confidence interval; AOFAS American Orthopedic Foot and Ankle Society