Table 3. Comparison of Pre- and Postoperative Clinical Findings between Two Groups.
| Variable | Preoperative | Postoperative | ||||
|---|---|---|---|---|---|---|
| Acceptable (n = 286) | Outlier (n = 48) | p-value* | Acceptable (n = 286) | Outlier (n = 48) | p-value* | |
| ROM | 129.3 ± 19.2 | 127.5 ± 15.7 | 0.421 | 135.7 ± 19.2 | 132.3 ± 15.2 | 0.471 |
| HSS | 64.9 ± 8.2 | 63.2 ± 11.4 | 0.417 | 90.7 ± 9.6 | 91.3 ± 9.3 | 0.243 |
| WOMAC | 41.9 ± 9.0 | 43.9 ± 9.0 | 0.122 | 11.9 ± 14.1 | 11.7 ± 10.7 | 0.189 |
| KSS pain | 14.7 ± 6.8 | 15.5 ± 7.1 | 0.290 | 46.2 ± 8.8 | 47.2 ± 9.2 | 0.497 |
| KSS function | 73.8 ± 16.7 | 72.2 ± 23.4 | 0.464 | 86.7 ± 13.3 | 89.5 ± 13.2 | 0.195 |
Values are presented as mean ± standard deviation.
ROM: range of motion, HSS: hospital for special surgery, WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index, KSS: Knee Society Score.
*Independent t-test. The p-values are of intergroup comparisons. Statistical significance was considered when p-values were below 0.05.