TABLE III.
Variable | Juvenile* | Adolescent* | Adult* | P Value |
Yield load/intact (%) | ||||
No treatment | 25 ± 4.8 | 13 ± 3.1 | 7 ± 2.1† | 0.002‡ |
Collagen-platelet composite | 32 ± 2.9 | 26 ± 2.8§ | 13 ± 1.7†# | <0.001‡ |
Max load/intact (%) | ||||
No treatment | 24 ± 4.6 | 12 ± 3.0 | 8 ± 2.3† | 0.006‡ |
Collagen-platelet composite | 31 ± 2.5 | 23 ± 2.5§ | 12 ± 1.5†# | <0.001‡ |
Stiffness/intact (%) | ||||
No treatment | 37 ± 5.8 | 29 ± 6.7 | 20 ± 5.4 | 0.086 |
Collagen-platelet composite | 52 ± 4.4 | 52 ± 5.0§ | 30 ± 4.1†# | <0.001‡ |
Anteroposterior laxity at 60° – intact (mm) | ||||
No treatment | 4.1 ± 0.27 | 3.8 ± 0.27 | 2.6 ± 0.30†# | <0.001‡ |
Collagen-platelet composite | 3.9 ± 0.22 | 3.1 ± 0.25§ | 2.6 ± 0.34† | 0.002‡ |
The data are given as the mean and the standard error of the mean.
Bonferroni post hoc analysis indicated p < 0.01 compared with juvenile group.
Overall group differences based on repeated-measures analysis of variance with knee as a within-animal factor.
Compared with no treatment, the collagen-platelet composite effect was significant (p < 0.01).
Bonferroni post hoc analysis indicated p < 0.01 compared with the adolescent group.