Table 1.
Univariate analysis between preoperative, radiologic, perioperative criteria and patients’ satisfaction
| Variables | Total (%) | Satisfied (n = 849) | Dissatisfied (n = 147) | Level of significance (p) |
|---|---|---|---|---|
| Pre-operative criteria | ||||
| Female | 658 (66 %) | 66 % | 68 % | 0.638b |
| Age [years] | – | 69 | 67 | 0.069a |
| BMI | – | 31 | 31 | 0.535a |
| Comorbidity (ASA 3–4) | 192 (23 %) | 24 % | 21 % | 0.870b |
| Living alone | 246 (33 %) | 32 % | 35 % | 0.571b |
| Opioid use | 39 (6 %) | 5 % | 9 % | 0.156b |
| Depression | 75 (9 %) | 9 % | 8 % | 1.0b |
| Post traumatic arthritis | 64 (7 %) | 6 % | 7 % | 0.855b |
| Rheumatoid arthritis | 82 (8 %) | 8 % | 8 % | 1.0b |
| Limited ROM | 270 (34 %) | 34 % | 31 % | 0.862b |
| Charnley score 1 | 662 (77 %) | 77 % | 78 % | 0.799b |
| Radiologic criteria | ||||
| Level of arthritis (K/L) grade 4 | 481 (54 %) | 57 % | 34 % | <0.001b |
| Mechanical leg axis [°] | – | 3 | 2 | 0.101a |
| Perioperative criteria | ||||
| Implant PFC | 845 (85 %) | 85 % | 84 % | 0.619b |
| Use of computer navigation | 699 (70 %) | 71 % | 67 % | 0.329b |
| Use of epidural catheter | 453 (56 %) | 57 % | 52 % | 0.411b |
| Postoperative leg axis [°] | 0 | 0 | 0.163a | |
ROM range of motion, BMI body mass index
Bold values indicate statistical significance
a Two-tailed Students t-test
b Chi-squared test