Biomechanica Hungarica, Évf. 4, Szám 2

Testing of prototype interference screw for ACL reconstruction in porcine femurs

Kovács József, Nagy Péter, Oroszlány Ákos, Pavlik Attila, Hidas Péter


Multiple techniques for the reconstruction of anterior cruciate ligament (ACL) are available, most of which use implant made from metallic or bioabsorbable materials. Currently one of the most widely used fi xation methods for anterior cruciate ligament reconstruction with bone tendonbone graft is the interference screw. The aim of our work was to test custom design screw geometry, whether it is appropriate for ACL reconstruction. New screw was designed geometry for the work, so that screws with the same geometry could be produced for later work, from different materials. In this study injection molded biodegradable interference screws were tested on porcine femurs, with bone-patellar tendon-bone (BPTB) graft fixation. The average failure load and the stiffness (772 ± 225 N and 109 ± 33.9 N/mm respectively) of the fixation was higher than literature average, although within standard deviation. Test results showed that the designed screw geometry is adequate for BPTB graft fixation.


DOI: 10.17489/biohun/2011/2/01

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