Table 1.
Peak Elongation and Gap Formation With Corresponding Regression Curves and R 2 Valuesa
| 50 N | 150 N | 250 N | 350 N | Regression Curve | R 2 Value | |
|---|---|---|---|---|---|---|
| Peak elongation (sp), mm | ||||||
| IB-Button | 0.38 ± 0.18 | 1.18 ± 0.21 | 2.34 ± 0.44 | 4.00 ± 0.25 | y(x) = 80.9x + 39.6 | 0.97 |
| IB-Anchor | 0.15 ± 0.03 | 1.17 ± 0.22 | 2.49 ± 0.58 | 3.82 ± 0.33 | y(x) = 80.7x + 46.1 | 0.99 |
| CLS | 0.31 ± 0.14 | 1.28 ± 0.45 | 2.57 ± 0.37 | 3.60 ± 0.21 | y(x) = 85.5x + 37.6 | 0.99 |
| CLD | 0.43 ± 0.24 | 1.62 ± 0.38 | 2.87 ± 0.26 | 3.60 ± 0.46 | y(x) = 91.7x + 4.5 | 0.98 |
| Anchor | 0.10 ± 0.08 | 1.08 ± 0.18 | 2.48 ± 0.30 | 4.21 ± 0.37 | y(x) = 71.8x + 58.7 | 0.97 |
| CLS-ALD | –0.32 ± 0.07 | 0.64 ± 0.21 | 1.72 ± 0.21 | 2.62 ± 0.24 | y(x) = 101.0x + 82.0 | 0.99 |
| Gap formation (sGap), mm | ||||||
| CLS | 0.41 ± 0.48 (0.0%) | 1.00 ± 0.38 (22.1%) | 1.38 ± 0.20 (46.4%) | 2.38 ± 0.29 (34.0%) | y(x) = 0.0063x + 0.36 | 0.99 |
| CLD | 0.04 ± 0.02 (90.2%) | 0.50 ± 0.20 (69.2%) | 1.16 ± 0.21 (59.8%) | 1.96 ± 0.30 (45.5%) | y(x) = 0.0064x – 0.37 | 0.98 |
| Anchor | 0.02 ± 0.01 (87.0%) | 0.10 ± 0.20 (91.0%) | 1.36 ± 0.29 (45.0%) | 2.45 ± 0.37 (41.9%) | y(x) = 0.0086x – 0.73 | 0.88 |
| CLS-ALD | 0.00 ± 0.00 (100.0%) | 0.00 ± 0.00 (100.0%) | 0.52 ± 0.23 (69.9%) | 0.85 ± 0.31 (67.7%) | y(x) = 0.004x – 0.60 | 0.97 |
aData are shown as mean ± SD unless otherwise indicated. Values in parentheses indicate the percentile displacement with anterior cruciate ligament repair under loads in relation to peak elongation. Groups are defined in the text.