Table 3.
Radiological measurements
| Total (n:36) | Groups | |||
|---|---|---|---|---|
| Group 1 (n:19) | Group 2 (n:17) | |||
| Med (IQR) | Med (IQR) | Med (IQR) | P* (Group 1 vs. Group 2) | |
| Meniscal extrusion (milimeters) | ||||
| preoperative | 3.89 (3.00;5.22) | 4.50 (4.00;6.38) | 3.30 (2.70;3.87) | < 0.001 |
| follow-up | 4.70 (3.05;5.95) | 5.50 (4.20;6.25) | 3.00 (2.20;4.90) | < 0.001 |
| Δ | 0.25 (-0.91;1.1) | 0.40 (-1.38;1.12) | 0.00 (-0.79;0.98) | 0.751 |
| P** (preoperative vs. follow-up) | 0.467 | 0.494 | 0.733 | |
| Posterior tibial slope (degrees) | ||||
| preoperative | 12.3 (8.4;14.5) | 11.2 (8.4;14) | 12.8 (8.0;15.2) | 0.579 |
| follow-up | 7.3 (5.4;11.4) | 7.1 (5.5;9.6) | 8.5 (4.7;12.4) | 0.680 |
| Δ | -3.05 (-5.6;-0.8) | -3.90 (-5.80;-1.90) | -2.30 (-5.40;-0.40) | 0.216 |
| P** (preoperative vs. follow-up) | < 0.001 | < 0.001 | < 0.005 | |
| Mechanical tibiofemoral angle (degrees) | ||||
| preoperative | 7.00 (5.45;9.70) | 6.31 (4.22;9.00) | 8.10 (6.77;10.64) | 0.049 |
| follow-up | -4.05 (-5.90;-1.74) | -5.60 (-6.40;-2.50) | -3.00 (-4.61;-1.50) | 0.022 |
| Δ | -11 (-14;-9) | -10.4 (-14;-8) | -11 (-14;-9) | 0.912 |
| P** (preoperative vs. follow-up) | < 0.001 | < 0.001 | < 0.001 | |
| Insall-Salvati Index | ||||
| preoperative | 1.04 (0.95;1.17) | 1.01 (0.93;1.17) | 1.05 (0.97;1.29) | 0.646 |
| follow-up | 1.05 (0.97;1.26) | 1.04 (0.96;1.26) | 1.06 (0.98;1.25) | 0.849 |
| Δ | 0.01 (-0.05;0.09) | 0.01 (-0.05;0.12) | 0.01 (-0.05;0.07) | 0.601 |
| P** (preoperative vs. follow-up) | 0.266 | 0.286 | 0.585 | |
| Caton-Deschamps Index | ||||
| preoperative | 0.87 (0.78;0.92) | 0.88 (0.67;0.95) | 0.86 (0.81;0.88) | 0.924 |
| follow-up | 0.63 (0.58;0.74) | 0.62 (0.58;0.76) | 0.63 (0.58;0.73) | 0.874 |
| Δ | -0.16 (-0.29;-0.08) | -0.16 (-0.30;-0.04) | -0.19 (-0.26;-0.13) | 0.578 |
| P** (preoperative vs. follow-up) | < 0.001 | 0.004 | < 0.001 | |
Bold values indicate level of significance at p < 0.05. Group 1: posteromedial opening wedge high tibial osteotomy (PMOWHTO) concomitant with medial meniscus posterior root tear (MMPRT) repair, Group 2: PMOWHTO without MMPRT. negative values indicates valgus alignment in mechanical tibiofemoral angle. * Mann‒Whitney Test. ** Wilcoxon Signed Ranks Test. Med: Median. IQR: Interquartile range (Q1;Q3); Q1: median of lower half, Q3: median of upper half. Δ: follow-up ‒ preoperative value.