Table 1.
Parameter Measurements for the 4 Meniscal States at Each Knee Flexion Angle a
| Parameter | 0° of Flexion | 30° of Flexion | 60° of Flexion | 90° of Flexion |
|---|---|---|---|---|
| Medial meniscal extrusion, mm | ||||
| Intact | 1.02 ± 0.86 | 1.69 ± 0.67 | 1.80 ± 0.62 | 1.99 ± 0.67 |
| Segmental medial defect | 2.08 ± 0.78 | 2.32 ± 0.96 | 2.48 ± 0.96 | 2.86 ± 0.66 |
| Inside-out | 1.55 ± 0.49 | 1.96 ± 0.54 | 1.95 ± 0.46 | 2.17 ± 0.57 |
| Anchor + inside-out | 1.44 ± 0.76 | 1.67 ± 0.76 | 2.01 ± 0.62 | 2.06 ± 0.56 |
| Medial Meniscus | ||||
| Mean contact pressure, mm | ||||
| Intact | 0.49 ± 0.15 | 0.49 ± 0.27 | 0.47 ± 0.16 | 0.60 ± 0.21 |
| Segmental medial defect | 0.65 ± 0.23 | 0.66 ± 0.23 | 0.72 ± 0.23 | 1.00 ± 0.44 |
| Inside-out | 0.53 ± 0.19 | 0.44 ± 0.25 | 0.45 ± 0.20 | 0.68 ± 0.36 |
| Anchor + inside-out | 0.53 ± 0.22 | 0.51 ± 0.30 | 0.50 ± 0.25 | 0.68 ± 0.33 |
| Contact area, mm2 | ||||
| Intact | 499.52 ± 97.78 | 422.42 ± 76.85 | 431.13 ± 72.52 | 360.32 ± 69.18 |
| Segmental medial defect | 384.19 ± 101.78 | 297.26 ± 110.11 | 281.77 ± 104.75 | 247.42 ± 78.63 |
| Inside-out | 417.42 ± 103.50 | 355.32 ± 86.94 | 359.03 ± 71.02 | 321.61 ± 77.91 |
| Anchor + inside-out | 386.45 ± 96.44 | 337.74 ± 96.00 | 341.61 ± 80.03 | 313.06 ± 56.54 |
| Peak pressure, MPa | ||||
| Intact | 3.37 ± 2.08 | 1.92 ± 1.11 | 1.76 ± 0.58 | 3.34 ± 1.88 |
| Segmental medial defect | 4.10 ± 2.63 | 2.81 ± 1.85 | 3.23 ± 2.17 | 4.23 ± 2.24 |
| Inside-out | 3.05 ± 1.73 | 1.74 ± 1.09 | 1.81 ± 0.70 | 3.24 ± 1.92 |
| Anchor + inside-out | 3.05 ± 1.85 | 2.17 ± 1.52 | 2.84 ± 2.98 | 3.87 ± 3.66 |
| Lateral Meniscus | ||||
| Mean contact pressure, mm | ||||
| Intact | 0.52 ± 0.18 | 0.37 ± 0.10 | 0.45 ± 0.12 | 0.64 ± 0.16 |
| Segmental medial defect | 0.66 ± 0.27 | 0.67 ± 0.38 | 0.86 ± 0.57 | 1.01 ± 0.52 |
| Inside-out | 0.47 ± 0.09 | 0.30 ± 0.09 | 0.45 ± 0.22 | 0.60 ± 0.21 |
| Anchor + inside-out | 0.43 ± 0.21 | 0.34 ± 0.11 | 0.47 ± 0.21 | 0.61 ± 0.27 |
| Contact area, mm2 | ||||
| Intact | 520.81 ± 66.28 | 461.77 ± 63.74 | 441.45 ± 46.57 | 380.48 ± 57.10 |
| Segmental medial defect | 387.58 ± 57.34 | 330.64 ± 145.70 | 320.97 ± 141.72 | 275.32 ± 110.55 |
| Inside-out | 422.10 ± 87.92 | 450.81 ± 65.98 | 401.77 ± 90.44 | 343.23 ± 54.24 |
| Anchor + inside-out | 445.32 ± 72.76 | 436.93 ± 68.26 | 417.90 ± 80.23 | 343.39 ± 61.95 |
| Peak pressure, MPa | ||||
| Intact | 2.17 ± 1.09 | 1.47 ± 0.71 | 2.09 ± 1.28 | 2.57 ± 1.26 |
| Segmental medial defect | 2.79 ± 1.61 | 2.19 ± 1.25 | 3.39 ± 2.77 | 4.27 ± 2.98 |
| Inside-out | 1.85 ± 0.42 | 1.54 ± 0.62 | 1.97 ± 1.20 | 2.63 ± 1.37 |
| Anchor + inside-outs | 2.06 ± 1.06 | 1.93 ± 1.27 | 2.00 ± 1.21 | 2.92 ± 2.09 |
a Data are reported as mean ± SD. Inside-out, inside-out segmental repair.