Whether sutures reduce the graft laceration caused by interference screw in anterior cruciate ligament reconstruction? A biomechanical study in vitro

Abstract Background Interference screw is commonly used for graft fixation in anterior cruciate ligament (ACL) reconstruction. However, previous studies had reported that the insertion of interference screws significantly caused laceration. The purposes this study were to (1) quantitatively evaluate laceration from one single PEEK screws; and (2) determine whether different types sutures reduced after ACL Methods in-vitro reconstruction model was created using porcine tibias bovine extensor digitorum tendons hind limbs. ends grafts sutured three sutures, including bioabsorbable, Ethibond ultra-high molecular weight polyethylene (UHMWPE) sutures. Poly-ether-ether-ketone (PEEK) tibial fixation. This divided into five groups ( n = 10 each group): non-fixed group, non-sutured absorbable suture group UHMWPE group. Biomechanical tests performed mode pull-to-failure loading at mm/min. Tensile stiffness (newtons per millimeter), energy absorbed failure (in joules) ultimate load (newtons) recorded analysis. Results All prepared bone specimens showed similar characteristics (length, weight, pre-tension tendons, mineral density) among all P > 0.05). biomechanical demonstrated < (the sutures) did not reduce Conclusions Our suggested approximately 25 % a Suturing (absorbable, decrease by screws.