Table 1.
Demographic data and preoperative clinical conditions*
| Data | Group M (n = 28) | Group I (n = 29) | p value |
|---|---|---|---|
| Demographic data | |||
| Gender (female/male) | 20/8 | 26/3 | – |
| Age (years) | 69 (8) | 70 (7) | 0.44 |
| Height (cm) | 159 (8) | 155 (7) | 0.11 |
| Weight (kg) | 69 (14) | 69 (13) | 0.95 |
| BMI (kg/m2) | 27 (5) | 29 (6) | 0.37 |
| Preoperative clinical conditions | |||
| Motion arc | |||
| Flexion (degrees) | 127 (13) | 121 (16) | 0.11 |
| Number of flexion contractures | 8 | 7 | – |
| Flexion contracture (degrees) | 9 (9) | 6 (2) | 0.4 |
| Number of recurvatum | 2 | 3 | – |
| Recurvatum (degrees) | 8 (4) | 8 (3) | 0.79 |
| Deformity | |||
| Number of varus | 26 | 27 | – |
| Varus (degrees-MA) | 11 (4) | 12 (4) | 0.51 |
| Number of valgus | 2 | 2 | – |
| Valgus (degrees-AA) | 13 (1) | 13 (6) | 1 |
| Modified WOMAC™ score | 50 (13) | 43 (15) | 0.08 |
* Data presented as means with SD in parentheses, except for gender, number of flexion contractures or recurvatum and number of varus or valgus deformities, which are presented as numbers; Group M = intrathecal morphine; Group I = periarticular multimodal drug injection; MA = mechanical axis; AA = anatomic axis.