Table 9.
Effect of selected variables on tibias (sagittal view/posterior blocking screws)
| Parameters (mean, range) | PPTA postoperative−goal (°) | ΔPosterior canal space (mm) | ||||
|---|---|---|---|---|---|---|
| n | Mean (range) | p value | n | Mean (range) | p value | |
| Number of sagittal blocking screws | ||||||
| 0 blocking screw | 21 | 79.8 (70–87) | 0.104 | 6 | 0.5 (0–1) | 0.194 |
| 1+ blocking screw | 19 | 80.1 (76–88) | 10 | 0.8 (−2–3) | ||
| Osteotomy distance from joint line | ||||||
| ≤10 cm (9.0, 7.7–9.9) | 7 | 81.4 (79–87) | 0.117 | 2 | 1.5 (0–3) | 0.647 |
| >10 cm (12.9, 10.2–23.7) | 33 | 79.6 (70–88) | 14 | 0.6 (−2–3) | ||
| Amount of lengthening | ||||||
| ≤4 cm (3.0, 2.1–3.9) | 9 | 79.9 (77–88) | 1.000 | 9 | 0.6 (0–3) | 0.607 |
| >4 cm (5.2, 4.1–6.1) | 7 | 80.4 (76–87) | 7 | 0.9 (−2–3) | ||
PPTA, posterior proximal tibial angle