Table 1 Patient demographics
Variable | Total (n = 106) | Non-severe (n = 76) | Severe (n = 30) | p-value |
|---|---|---|---|---|
Sex, female, n (%) | 85 (80.2) | 61 (80.3) | 24 (80.0) | 1.000 |
Side, left, n (%) | 57 (53.8) | 44 (57.9) | 13 (43.3) | 0.199 |
Mean age, yrs (range; SD) | 67.6 (50 to 87; 6.8) | 67.5 (53 to 82;6.4) | 66.8 (50 to 87;7.8) | 0.642 |
Mean BMI, kg/m2 (range; SD) | 26.8 (19.2 to 41.5; 3.7) | 26.7 (19.2 to 39.4;3.8) | 27.1 (21.5 to 41.5;3.5) | 0.647 |
Preoperative flexion contracture, ° (range; SD) | 10.2 (-10 to 23; 5.6) | 9.7 (-4 to 20; 5.0) | 11.5 (-10 to 23;7.0) | 0.131 |
Preoperative HKA, ° (range; SD) | 7.6 (1.5 to 19; 3.9) | 5.7 (1.5 to 9; 2.0) | 12.6 (10 to 19; 2.7) | < 0.001 |