Table 4.
Variable | Preoperative* | Postoperative* | Difference* | p value | Interobserver correlation coefficient between classes | Intraobserver correlation coefficient between classes |
---|---|---|---|---|---|---|
Maximum active knee flexion | 102° ± 5° (90°–130°) | 130° ± 10° (100°–139°) | 28° ± 5° | < 0.001 | 0.81 | 0.90 |
VAS pain score | 8.6 ± 1.6 (7–10) | 1.7 ± 2.5 (0–3) | 5.7 ± 0.9 | < 0.001 | 0.82 | 0.91 |
FTA | 179.5° ± 3° (171°–185°) | 177° ± 2.9° (169°–185°) | 2.5° ± 0.1° | < 0.001 | 0.87 | 0.95 |
TPA | 87.3° ± 1.9° (82°–90°) | 85.2° ± 3.6° (74°–91°) | 2.1° ± 1.7° | < 0.001 | 0.83 | 0.90 |
PTS | 83° ± 3.7° (range, 74°–90°) | 82.1° ± 3.8° (range, 72°–89°) | 0.9° ± 0.1° | 0.06 | 0.80 | 0.91 |
* Values are expressed as mean ± SD, ranges in parentheses; FTA = femorotibial angle; TPA = tibial plateau angle; PTS = posterior tibial slope.