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Table 1 Demographic data and preoperative alignment and deformity statuses

From: Patient-specific instrumentation combined with a new tool for gap balancing is useful in total knee replacement: a 3-year follow-up of a retrospective study

Variable Total GB group (n = 82) MR group (n = 70) p value
Age 67±11.3 70.2 (55 to 76) 71.1 (52 to 78) 0.42
Sex (female) 152 (62.32%) 62 (75.61%) 48 (68.57%)  
BMI 24.30±3.99 24.12±3.79 24.37±4.01 0.38
KSS 37.13±21.81 39.03±21.92 35.72±19.16 0.31
Preoperative flexion angle 91.9±17.4 92.2°± 15.4° 90.3±17.2° 0.57
Alignment
 Valgus:n(mean alignment) 41 (−10.8±6.5) 17 (−7.9±5.1)a 24 (−12.7±6.3)b 0.34
 Neutral:n 20 8 12 0.56
 Varus:n(mean alignment) 91 (6.0±2.1) 57 (5.9±1.7) 34 (6.2±2.3) 0.51
  1. aValgus 10–20°(4 knees) and valgus <10°(13 knees) in GB group
  2. bValgus 10–20°(7 knees) and valgus <10°(17 knees) in MR group