Table 5.
Mean absolute T1ρ and T2 relaxation times (ms) and meniscal extrusion (mm) of the medial and lateral meniscus body region in response to varus and valgus loading. Mean ± standard deviation (mean percentage change versus δ0 (%)). Statistical analysis was performed using Friedman’s test for T1ρ and T2 and repeated measures ANOVA for meniscal extrusion. Statistically significant results are indicated by bold type. Please refer to Table 2 for additional details on table organization.
| Meniscus | Parameter | δ0 | δvar1 or vlg1 | δvar2 or vlg2 | δvar3 or vlg3 | p-Value |
|---|---|---|---|---|---|---|
| Medial | T1ρ (ms) | 24.7 ± 6.2 | 21.6 ± 8.5 (−12.6) | 20.1 ± 8.0 (−18.6) | 17.5 ± 8.9 (−29.1) | 0.001 |
| T2 (ms) | 14.4 ± 2.1 | 15.8 ± 3.4 (9.7) | 15.8 ± 3.6 (9.7) | 16.3 ± 3.6 (13.2) | 0.247 | |
| Extrusion (mm) | 3.3 ± 1.2 | 3.3 ± 1.1 (0) | 3.3 ± 1.2 (0) | 3.4 ± 1.4 (3.0) | 0.325 | |
| Lateral | T1ρ (ms) | 18.9 ± 4.8 | 17.4 ± 4.5 (−7.9) | 15.8 ± 5.5 (−16.4) | 15.7 ± 5.5 (−16.9) | 0.020 |
| T2 (ms) | 13.1 ± 3.1 | 15.6 ± 3.0 (19.1) | 15.3 ± 3.9 (16.8) | 14.6 ± 3.8 (11.5) | 0.022 | |
| Extrusion (mm) | 1.6 ± 0.8 | 1.7 ± 1.3 (6.3) | 1.8 ± 1.2 (12.5) | 1.7 ± 1.2 (6.3) | 0.793 |