Table 5. KT 1000 Arthrometer measurement of anterior-posterior knee laxity at 90N. Immediately after surgery 11 week (mean, SD) p-value WBV Group 1.0 ± 2.1 (.1-1.9) 1.5 ± 2.5 (.4-2.6) .29 Control Group 1.2 ± 1.9 (.4-2.0) 1.6 ± 2.4 (.6-2.7) .25 The side to side differences (injured side minus the normal side) of anterior-posterior knee laxity are shown as mean ± standard deviation in mm (95% confidence interval). A positive value indicates an increase of knee laxity for the reconstructed knee in comparison to the normal knee. P values indicate comparison of factor ˝time˝ within the groups.