Table 1.
The mean (95% Confidence Limits) for the linear stiffness (stiffness), yield load and maximum load and AP laxity at 30° (AP30), 60° (AP60), and 90° (AP90) of flexion for the four treatment groups; ACL transection (ACLT), ACL reconstruction (ACLR), bio-enhanced ACL reconstruction (BE-ACLR), and bio-enhanced ACL repair (BE-repair), at 6 and 12 months after surgery.
| 6 Month | ACLT | ACLR | BE-ACLR | BE-repair | ||||
|---|---|---|---|---|---|---|---|---|
| Surgical | Intact | Surgical | Intact | Surgical | Intact | Surgical | Intact | |
| Stiffness (kN/mm) |
0.09 (0.06-0.12) |
0.20 (0.19-0.22) |
0.22 (0.19-0.24) |
0.22 (0.21-0.25) |
0.18 (0.16-0.20) |
0.23 (0.21-0.25) |
0.12 (0.08-0.16) |
0.20 (0.16-0.23) |
| Yield Load (kN) |
0.37 (0.26-0.48) |
1.26 (1.13-1.39) |
1.18 (0.90-1.46) |
1.49 (1.29-1.71) |
1.20 (0.96-1.43) |
1.50 (1.39-1.61) |
.56 (0.36-0.75) |
1.36 (1.23-1.49) |
| Maximum Load (kN) |
0.38 (0.27-0.49) |
1.54 (1.43-1.64) |
1.26 (0.97-1.55) |
1.61 (1.43-1.79) |
1.29 (1.02-1.55) |
1.59 (1.45-1.73) |
0.60 (0.43-0.78) |
1.54 (1.42-1.65) |
| CSA (mm2) |
36 (20-65) |
34 (26-43) |
84 (75-94) |
29 (27-32) |
78 (57-107) |
31 (22-45) |
54 (38-76) |
31 (28-34) |
| AP30 (mm) |
4.7 (3.7-6.1) |
2.8 (2.2-3.6) |
2.2 (1.8-2.5) |
2.4 (1.8-3.2) |
2.5 (1.8-3.4) |
1.7 (1.2-2.4) |
3.6 (2.5-5.1) |
2.7 (2.3-3.2) |
| AP60 (mm) |
8.8 (7.4-10.4) |
3.5 (3.2-3.8) |
7.7 (6.7-8.8) |
3.0 (2.8-3.3) |
6.5 (5.0-8.4) |
3.0 (2.5-3.6) |
8.5 (7.4-9.8) |
3.0 (2.7-3.4) |
| AP90 (mm) |
6.9 (5.7-8.2) |
2.7 (2.4-3.1) |
8.1 (6.4-10.2) |
2.1 (1.9-2.4) |
7.8 (6.4-9.5) |
2.1 (1.8-2.5) |
7.1 (6.4-7.7) |
2.2 (2.1-2.4) |
| 12 Month | ||||||||
| Stiffness (kN/mm) |
0.07 (0.04-0.11) |
.28 (.27-.29) |
0.18 (0.13-0.22) |
0.26 (0.23-0.28) |
0.21 (0.17-0.25) |
0.27 (0.25-0.28) |
0.15 (0.12-0.18) |
0.25 (0.23-0.27) |
| Yield Load (kN) |
0.20 (0.11-0.29) |
1.56 (1.43-1.67) |
0.93 (0.67-1.18) |
1.52 (1.30-1.74) |
0.96 (0.72-1.21) |
1.33 (1.12-1.54) |
0.57 (0.42-0.72) |
1.35 (1.16-1.53) |
| Maximum Load (kN) |
0.26 (0.14-0.38) |
1.78 (1.62-1.95) |
1.17 (1.31-2.19) |
1.78 (1.65-1.90) |
1.17 (0.90-1.43) |
1.74 (1.59-1.90) |
0.71 (0.46-0.97) |
1.79 (1.58-2.00) |
| CSA (mm2) |
22 (7-69) |
26 (23-29) |
66 (48-91) |
30 (25-35) |
55 (43-68) |
30 (24-36) |
59 (39-89) |
29 (23-37) |
| AP30 (mm) |
6.0 (4.4-8.1) |
2.2 (1.8-2.8) |
2.8 (2.2-3.5) |
2.4 (2.1-2.7) |
2.8 (1.9-4.1) |
2.4 (1.9-3) |
4.2 (2.7-6.6) |
2.9 (2.3-3.7) |
| AP60 (mm) |
9.9 (8.8-11.2) |
3.0 (2.6-3.5) |
6.2 (4.6-8.4) |
3.1 (2.8-3.4) |
6.6 (4.8-9.2) |
2.8 (2.3-3.4) |
8.8 (8.1-9.7) |
3.2 (2.7-3.9) |
| AP90 (mm) |
7.5 (6.5-8.8) |
1.9 (1.7-2.2) |
8.9 (7.2-11.0) |
2.4 (2.2-2.6) |
7.2 (5.2-10) |
2.6 (2.2-3) |
8.0 (7.5-8.7) |
2.3 (2-2.6) |