Int J Med Robot - Accuracy of a computer-assisted planning and placement system for anatomical femoral tunnel positioning in anterior cruciate ligament reconstruction.

Tópicos

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Resumo

CKGROUND: 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.

Resumo Limpo

ckground femor tunnel posit difficult import factor success anterior cruciat ligament acl reconstruct comput navig can improv anatom plan procedur besid tunnel placement proceduremethod accuraci computerassist femor tunnel posit method anatom doubl bundl aclreconstruct threedimension templat determin respect aspect pl bundl cadaver kneesresult accuraci total tunnel posit procedur mm mm pl valu consist accuraci plan mm pl mm placement mm templat show systemat bias plpositionconclus computerassist templat method show high accuraci tunnel placement promis capac applic anatom tunnel plan improv templat will result accur robust navig system femor tunnel posit aclreconstruct

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