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Table 3 Outcome preoperative, 12 and 24 months after surgery (mean ± standard deviation) for group A and group B

From: Anterolateral approach with tibial tubercle osteotomy versus standard medial approach for primary total knee arthroplasty: does it matter?

Outcome Before surgery Significance 12 months after surgery 24 months after surgery Significance
  Group A Group B Between groups Group A Group B Group A Group B Between groups Within group A Within group B
VAS pain 6.9 ± 1.4 7.0 ± 1.3 n.s. 1.5 ± 1.9 1.7 ± 1.9 0.9 ± 1.7 1.4 ± 1.7 p < 0.0001 p < 0.0001 p < 0.0001
VAS satisfaction 3.8 ± 1.8 3.5 ± 2.0 n.s. 8.8 ± 1.6 8.1 ± 1.9 9.1 ± 1.6 8.5 ± 2.2 p = 0.0059 p < 0.0001 p < 0.0001
Flexion passive 112 ± 15 115 ± 15 n.s. 115 ± 11 114 ± 11 118 ± 10 114 ± 10 p = 0.020 p = 0.0017 n.s.
Knee Score (KSS) Total 103 ± 25 86 ± 26 p = 0.00014 180 ± 24 166 ± 26 182 ± 25 171 ± 27 p = 0.0008 p < 0.0001 p < 0.0001
KSS - Knee Score 50 ± 15 40 ± 15 p = 0.00024 91 ± 11 86 ± 14 93 ± 11 88 ± 13 p = 0.0004 p < 0.0001 p < 0.0001
KSS - Function Score 53 ± 17 46 ± 19 p = 0.027 90 ± 17 81 ± 16 89 ± 18 83 ± 18 p = 0.015 p < 0.0001 p < 0.0001
  1. Wilcoxon Two Sample Test (two sided) for differences between groups, paired t-test for differences within group, level of significance p < 0.05