Luites J W H, Wymenga A B, Blankevoort L, Eygendaal D, Verdonschot N
Research, Development & Education, Sint Maartenskliniek, Nijmegen, The Netherlands.
Int J Med Robot. 2014 Dec;10(4):438-46. doi: 10.1002/rcs.1548. Epub 2013 Oct 24.
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.
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.
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.
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.
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。计算机导航除了能改善隧道置入过程外，还能改进解剖规划程序。
在12具尸体膝关节上，针对前内侧（AM）束和后外侧（PL）束的两个方面，确定了使用三维模板进行计算机辅助股骨隧道定位方法在解剖双束ACL重建中的准确性。
整个隧道定位程序的准确性为AM束2.7毫米，PL束3.2毫米。这些数值包括规划准确性（AM束：2.9毫米；PL束：3.2毫米）和置入准确性（约0.4毫米）。模板在PL束位置显示出系统偏差。
计算机辅助模板法在隧道置入方面显示出高精度，在解剖隧道规划中具有良好的应用潜力。改进模板将为ACL重建中的股骨隧道定位带来准确且可靠的导航系统。
