Table 3.
Preoperative and postoperative comparisons between patients with arthrofibrosis and psychological distress and those patients with arthrofibrosis but without psychological distress (distressed versus nondistressed)
| Dependent variable | Preoperative | Postoperative | ||||||
|---|---|---|---|---|---|---|---|---|
| Distressed, mean (SD) | Nondistressed, mean (SD) | p value | 95% CI | Distressed, mean (SD) | Nondistressed, mean (SD) | p value | 95% CI | |
| QWB-7 total | 0.490 (0.04) | 0.547 (0.05) | < 0.001* | −0.08 to −0.03 | 0.537 (0.09) | 0.627 (0.10) | 0.002* | −0.14 to −0.03 |
| KS knee score | 41.00 (22.7) | 43.78 (23.4) | 0.6 | −15.3 to 9.7 | 80.32 (22.3) | 81.86 (23.8) | 0.8 | −14.8 to 11.7 |
| KS function score | 19.40 (18.5) | 32.66 (20.3) | 0.014 | −23.7 to −2.7 | 50.00 (24.4) | 52.32 (20.6) | 0.7 | −15.1 to 10.5 |
| WOMAC stiffness | 4.92 (2.1) | 3.22 (2.1) | 0.005* | 0.53–2.8 | 1.52 (2.2) | 1.0 (2.1) | 0.3 | −0.66 to 1.7 |
| WOMAC total | 66.96 (17.0) | 56.81 (18.0) | 0.038 | 0.59–19.6 | 20.64 (27.5) | 14.16 (25.2) | 0.3 | −7.5 to 20.5 |
| Knee active flexion | 102.68 (16.4) | 102.16 (21.3) | 0.9 | −9.8 to 10.8 | 96.23 (18.4) | 97.07 (16.8) | 0.8 | −10.7 to −10.9 |
| KS ROM | 105.40 (15.6) | 101.25 (21.0) | 0.4 | −5.9 to 14.2 | 102.73 (21.0) | 100.83 (22.2) | 0.7 | −10.3 to 14.1 |
* p value < 0.01 independent t-tests; CI = confidence interval; QWB-7 = Quality of Well-Being Index; KS = The Knee Society.