Table 1.
Anterior tibial translation at different knee flexion angle.
| Group | N | Knee flexion angle | Mean | Standard deviation | Standard error | 95% Confidence interval for mean |
Minimum | Maximum | |
|---|---|---|---|---|---|---|---|---|---|
| Lower bound | Upper bound | ||||||||
| A | 6 | 15° | 5.63 | 0.5 | 0.2 | 5.1 | 6.16 | 4.68 | 6.17 |
| 30° | 5.63 | 0.5 | 0.2 | 5.1 | 6.16 | 4.68 | 6.17 | ||
| 60° | 5.53 | 0.41 | 0.17 | 5.1 | 5.95 | 4.98 | 6.12 | ||
| 90° | 5.45 | 0.39 | 0.16 | 5.05 | 5.86 | 4.91 | 6.03 | ||
| Full flexion | 5.45 | 0.39 | 0.16 | 5.03 | 5.86 | 4.82 | 5.87 | ||
| B | 6 | 15° | 12.26 | 0.84 | 0.34 | 11.38 | 13.14 | 10.97 | 13.22 |
| 30° | 12.04 | 0.94 | 0.38 | 11.05 | 13.02 | 10.91 | 13.22 | ||
| 60° | 11.47 | 0.83 | 0.34 | 10.6 | 12.34 | 10.23 | 12.58 | ||
| 90° | 11.47 | 0.83 | 0.34 | 10.6 | 12.34 | 10.23 | 12.58 | ||
| Full flexion | 8.93 | 0.71 | 0.29 | 8.18 | 9.68 | 8.19 | 9.98 | ||
| C | 6 | 15° | 5.82 | 0.29 | 0.12 | 5.51 | 6.13 | 5.37 | 6.12 |
| 30° | 5.95 | 0.4 | 0.16 | 5.53 | 6.38 | 5.41 | 6.51 | ||
| 60° | 5.8 | 0.55 | 0.22 | 5.21 | 6.36 | 5.29 | 6.79 | ||
| 90° | 5.46 | 0.36 | 0.15 | 5.07 | 5.84 | 4.98 | 6.02 | ||
| Full flexion | 6.29 | 0.59 | 0.24 | 5.67 | 6.92 | 5.62 | 7.13 | ||
| D | 6 | 15° | 5.78 | 0.41 | 0.17 | 5.35 | 6.21 | 5.33 | 6.56 |
| 30° | 5.84 | 0.5 | 0.21 | 5.31 | 6.37 | 5.02 | 6.58 | ||
| 60° | 5.76 | 0.4 | 0.16 | 5.34 | 6.18 | 5.25 | 6.26 | ||
| 90° | 5.49 | 0.43 | 0.18 | 5.04 | 5.94 | 5.08 | 6.29 | ||
| Full flexion | 5.48 | 0.61 | 0.25 | 4.84 | 6.11 | 4.75 | 6.53 | ||
Group A = intact ACL; Group B = ACL-deficient; Group C = pure magnesium interference screw group; Group D = polylactic acid polymer interference screw group.