Seon Jong Keun, Park Sang Jin, Lee Keun Bae, Yoon Taek Rim, Seo Hyoung Yeon, Song Eun Kyoo
Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun-gun, Jeonnam, South Korea.
Int Orthop. 2009 Apr;33(2):425-9. doi: 10.1007/s00264-008-0530-2. Epub 2008 Mar 7.
The purpose of this study was to evaluate the intra-operative stability during double-bundle anterior cruciate ligament (ACL) reconstructions (20 knees) using a navigation system and compare the results with those obtained from single-bundle reconstructions (20 knees). After registering the reference points during ACL reconstruction, antero-posterior and rotational stability tests with 30 degrees knee flexion using a navigation system were measured before and after reconstructions on both groups. The change of antero-posterior translation after and before reconstruction was 12.5 mm in the double-bundle group and 10.5 mm in the single-bundle group, showing significant inter-group difference (p=0.014, from 17.5 mm to 5.1 mm in the double-bundle and from 16.6 mm to 6.1 mm in the single-bundle group). The mean rotational stability of the double-bundle group also showed more significant improvement after reconstruction compared to that of the single-bundle group (9.8 degrees in the double- and 5.6 degrees in the single-bundle groups, p<0.001). These findings suggest that a double-bundle ACL reconstruction restores greater knee stability with respect to the antero-posterior and rotational stability than a single-bundle reconstruction.
本研究的目的是评估使用导航系统进行双束前交叉韧带（ACL）重建（20例膝关节）时的术中稳定性，并将结果与单束重建（20例膝关节）的结果进行比较。在ACL重建过程中注册参考点后，使用导航系统在两组重建前后测量膝关节屈曲30度时的前后向和旋转稳定性测试。重建前后的前后向平移变化在双束组为12.5mm，单束组为10.5mm，显示出显著的组间差异（p = 0.014，双束组从17.5mm至5.1mm，单束组从16.6mm至6.1mm）。与单束组相比，双束组的平均旋转稳定性在重建后也显示出更显著的改善（双束组为9.8度，单束组为5.6度，p<0.001）。这些发现表明，双束ACL重建相对于单束重建在前后向和旋转稳定性方面能恢复更大的膝关节稳定性。
