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Table 1 Comparison of pre-operative demographics and clinical status among the groups

From: Rotational alignment of femoral component with different methods in total knee arthroplasty: a randomized, controlled trial

  Measured resection (n = 51) Tensor (n = 50) Block (n = 52) p-value
Gender (M/F) 2/49 1/49 2/50 0.828a
Agec (year) 68.6 (55–81) 70.8 (56–86) 69.3 (56–78) 0.178b
Body mass indexc (kg/m2) 26.6 (20.8–33.7) 25.6 (20.7–31.2) 25.8 (20.2–33.3) 0.169b
Involved knee (Rt./Lt.) 27/24 21/29 25/27 0.545a
Range of knee motionc (degree)
 Flexion contracture 9.4 (0–25) 8.8 (0–30) 8.8 (0–20) 0.859b
 Further flexion 124.7 (100–150) 125.9 (90–150) 125.5 (40–150) 0.937b
 Total range of motion 115.3 (80–145) 117.1 (60–145) 116.7 (35–145) 0.889b
Tibiofemoral angle (degree) Varus 4.5 (varus 24 - valgus 7) Varus 2.8 (varus 19 - valgus 6) Varus 2.9 (varus 18 - valgus 7) 0.225b
KS scorec (points)
 Knee 48.6 (19–90) 45.1 (6–74) 46.6 (24–71) 0.259b
 Function 42.7 (0–86) 39.7 (0–71) 39.4 (2–71) 0.163b
HSS score (points) 62.2 (38–84) 60.9 (27–82) 61.9 (43–78) 0.802b
WOMAC score (points) 52.8 (19–96) 58.3 (17–96) 55.8 (17–91) 0.094b
  1. Abbreviations: KS Knee Society, HSS Hospital for Special Surgery, WOMAC Western Ontario and McMaster Universities Osteoarthritis Index (LK 3.1 version)
  2. aChi-square test
  3. bMixed model for adjustment of auto-correlation
  4. cThe values are given as the mean and the range in parenthesis