Biomechanical comparison of 2 anterior cruciate ligament graft preparation techniques for tibial fixation: adjustable-length loop cortical button or interference screw

The American Journal of Sports Medicine
Raul MayrRené Attal

Abstract

Cortical button fixation at the femoral side and interference screws within the tibial bone tunnel are widely used for anterior cruciate ligament graft fixation. Using a bone socket instead of a full tunnel allows cortical button fixation on the tibial side as well. If adjustable-length loop cortical button devices are used for femoral and tibial fixation, the tendon graft has to be secured with sutures in a closed tendon loop. The increased distance of fixation points and potential slippage of the tendon strands at the securing sutures might lead to greater risk of postoperative graft elongation when compared with conventional graft preparation with tibial interference screw fixation. Compared with an anterior cruciate ligament graft with tibial adjustable-length loop cortical button fixation, a graft with tibial interference screw fixation will show less graft elongation during cyclic loading and lower ultimate failure loads. Controlled laboratory study. Grafts with tibial adjustable-length loop cortical button fixation and grafts with tibial interference screw fixation were biomechanically tested in calf tibiae (n = 10 per group). Femoral fixation was equivalent for both groups, using an adjustable-length loop cortical butto...Continue Reading

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Citations

Jan 28, 2016·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Trevor R BornPaul D Fadale
Apr 1, 2017·Journal of Orthopaedics·Alexander J ConnaughtonChristopher W Uggen
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Aug 3, 2019·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Raul MayrRené Attal
Mar 3, 2019·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Lindsey M SpraggRick P Csintalan
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Jun 15, 2021·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Pierre LaumonerieFranck Accadbled

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