TABLE 1.
Demographic and medical history characteristics of KA vs MA cohorts
| Kinematic axis (n = 44) | Mechanical axis (n = 57) | Mean difference | 95% CI of the difference | Chi‐square | P | |
| Age, median ± SD | 68.5 ± 7.5 | 68.2 ± 7.7 | 0.268 | (−2.770, 3.305) | 0.861 | |
| Gender, n (%) | 0.018 | 1.000 | ||||
| Male | 16 (36.4) | 20 (35.1) | ||||
| Female | 20 (63.6) | 37 (64.9) | ||||
| BMI, mean ± SD | 31.0 ± 6.6 | 32.6 ± 5.6 | −1.592 | (−4.002, 0.818) | 0.193 | |
| ASA, n (%) | 2.186 | 0.535 | ||||
| 0 | 0 (0) | 1 (1.8) | ||||
| 1 | 0 (0) | 0 (0) | ||||
| 2 | 16 (36.4) | 26 (47.3) | ||||
| 3 | 27 (61.4) | 27 (49.1) | ||||
| 4 | 1 (2.2) | 1 (1.8) | ||||
| History of chronic pain | 10 (22.7) | 21 (39.6) | 3.156 | 0.085 | ||
| History of Opioid Use | 5 (11.4) | 10 (18.9) | 1.036 | 0.402 | ||
| EBL, mean ± SD | 105.1 ± 65.9 | 83.6 ± 63.0 | 21.556 | (−4.610, 47.722) | 0.105 |