TABLE 1.
Demographics (mean and SD) of patients with moderate‐to‐severe and none‐to‐mild postoperative pain assessed 6 months after primary total knee arthroplasty.
| Moderate‐to‐severe pain | None‐to‐mild pain | p | |
|---|---|---|---|
| (N = 15) | (N = 31) | ||
| Age (years) | 68.0 (SD: 7.2) | 66.9 (SD: 8.4) | 0.667 |
| BMI (kg/m2) | 29.9 (SD: 3.4) | 29.7 (SD: 4.9) | 0.911 |
| Gender (% females) | 60% | 65% | 0.766 |
| Preoperative Kellgren–Lawrence score (0–4) |
3 (73%) 4 (27%) |
3 (45%) 4 (55%) |
0.138 |
| Preoperative VAS (0–10) | 6.6 (SD: 2.1) | 4.6 (SD: 2.4) | 0.008 |
| Preoperative pain duration (months) | 43.8 (SD: 34.4) | 46.3 (SD: 26.7) | 0.787 |
| Preoperative Oxford Knee Score (0–48) | 19.4 (SD: 7.0) | 23.5 (SD: 7.8) | 0.085 |
| Postoperative Pain Catastrophizing Scale (0–52) | 10.9 (SD: 11.8) | 6.1 (SD: 8.7) | 0.128 |
Bold indicate significant findings.
Abbreviations: BMI, body mass index; SD, standard deviation; VAS, visual analogue scale.