Table 1 The contact pressure and the parameters of the cross sections
From: The cross-sectional shape of the fourfold semitendinosus tendon is oval, not round
Cross-section | Contact pressure | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
7.5 mm from the looped edge | 15 mm from the looped edge | Round tunnel | Rounded rectangular tunnel | |||||||||
Cadaver no. | Area (mm2) | Major (mm) | Minor (mm) | Ellipticity | Area (mm2) | Major (mm) | Minor (mm) | Ellipticity | Vertical (gf) | Bilateral (gf) | Vertical (gf) | Bilateral (gf) |
1 | 59.5 | 10.3 | 7.4 | 1.07 | 59.7 | 9.9 | 7.7 | 1.10 | 0 | 354.7 | 390.8 | 415.3 |
2 | 59.5 | 9.0 | 8.4 | 1.22 | 60.1 | 9.8 | 7.8 | 1.14 | 0 | 366.5 | 298.7 | 268.4 |
3 | 57.4 | 9.3 | 7.9 | 1.17 | 55.9 | 9.0 | 7.9 | 1.13 | 0 | 271.4 | 353.0 | 350.3 |
4 | 55.8 | 9.5 | 7.5 | 1.27 | 53.2 | 8.8 | 7.7 | 1.15 | 0 | 410.0 | 341.0 | 352.0 |
5 | 54.8 | 10.0 | 7.0 | 1.21 | 59.5 | 9.1 | 8.3 | 1.14 | 0 | 341.5 | 442.2 | 440.4 |
6 | 52.9 | 9.1 | 7.4 | 1.44 | 49.7 | 8.5 | 7.5 | 1.29 | 0 | 265.0 | 309.0 | 0 |
7 | 48.6 | 8.6 | 7.2 | 1.40 | 46.4 | 8.2 | 7.2 | 1.27 | 0 | 0 | 335.6 | 0 |
Mean | 55.5 | 9.4 | 7.5 | 1.25 | 54.9 | 9.0 | 7.7 | 1.17 | 0 | 287.0 | 352.9 | 260.9 |
SD | 3.9 | 0.6 | 0.5 | 0.05 | 5.4 | 0.6 | 0.3 | 0.03 | 0 | 136.7 | 49.5 | 186.4 |