J W H Luites, A B Wymenga, L Blankevoort, D Eygendaal, N Verdonschot
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引用次数: 19
Abstract
Background: Femoral tunnel positioning is a difficult, but important factor in successful anterior cruciate ligament (ACL) reconstruction. Computer navigation can improve the anatomical planning procedure besides the tunnel placement procedure.
Methods: The accuracy of the computer-assisted femoral tunnel positioning method for anatomical double bundle ACL-reconstruction with a three-dimensional template was determined with respect to both aspects for AM and PL bundles in 12 cadaveric knees.
Results: The accuracy of the total tunnel positioning procedure was 2.7 mm (AM) and 3.2 mm (PL). These values consisted of the accuracies for planning (AM:2.9 mm; PL:3.2 mm) and for placement (about 0.4 mm). The template showed a systematic bias for the PL-position.
Conclusions: The computer-assisted templating method showed high accuracy for tunnel placement and has promising capacity for application in anatomical tunnel planning. Improvement of the template will result in an accurate and robust navigation system for femoral tunnel positioning in ACL-reconstruction.
背景:股骨隧道定位是前交叉韧带(ACL)重建成功的一个困难但重要的因素。计算机导航除了可以改进隧道放置程序外，还可以改进解剖规划程序。方法:对12例尸体膝关节的AM束和PL束进行三维模板解剖双束acl重建的计算机辅助股骨隧道定位方法的准确性进行测定。结果:全隧道定位精度分别为2.7 mm (AM)和3.2 mm (PL)。这些值包括规划精度(AM:2.9 mm;外径:3.2毫米)和放置(约0.4毫米)。模板显示出对pl位置的系统性偏差。结论:计算机辅助模板法隧道定位精度高，在隧道解剖规划中具有广阔的应用前景。该模板的改进将为acl重建中股骨隧道定位提供准确、稳健的导航系统。
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