PCO ≤ − 2 mm (n = 25) | − 2 mm < PCO < 0 mm (n = 43) | 0 mm ≤ PCO < 2 mm (n = 27) | PCO ≥ 2 mm (n = 8) | p value | |
---|---|---|---|---|---|
Age (years) | 66.20 ± 5.68 | 64.67 ± 5.61 | 64.00 ± 6.64 | 66.50 ± 5.58 | 0.487 |
Gender (male/female) | 8/17 | 16/27 | 12/15 | 3/5 | 0.833 |
BMI (kg/m2) | 25.95 ± 3.38 | 28.09 ± 3.28 | 27.08 ± 3.27 | 27.05 ± 2.73 | 0.082 |
Flexion contracture (°) | 6.34 ± 1.04 | 6.02 ± 0.54 | 6.28 ± 0.96 | 5.97 ± 0.84 | 0.335 |
Further flexion (°) | 120.42 ± 1.95 | 120.73 ± 2.06 | 119.94 ± 1.85 | 118.99 ± 1.78 | 0.091 |
WOMAC score | 110.56 ± 8.38 | 108.30 ± 6.41 | 112.81 ± 9.45 | 106.50 ± 5.81 | 0.069 |
KS knee score | 39.36 ± 5.13 | 40.21 ± 3.59 | 38.48 ± 2.56 | 41.00 ± 6.26 | 0.258 |
KS function score | 49.52 ± 2.71 | 48.67 ± 3.24 | 50.37 ± 4.12 | 50.50 ± 4.72 | 0.200 |