ACL Interference screw

Anterior cruciate ligament (ACL) rupture is a common injury seen especially in sportsmen and women, and often results in subsequent functional instability. ACL reconstruction surgery seeks to reduce the morbidity associated with this injury.

Interference screw is intended for use as a fixation device for bone -tendon and soft tissue grafts during ACL and PCL reconstruction procedures.Each screw has a stepped tapered design which maximizes insertion torque, as the screw is fully seated. The thread form has been optimized to ease insertion and maximize soft tissue and bone fixation in cortical and cancellous bone.

The cannulated hexalobe drive system enhances the screw family by providing one universal drive system for all screws and significantly improved torsional and insertion strength.Each screw fully seats on and is completely supported along the entire length of the driver tip.

Over the years, interference screws, one of the commonly used mechanical devices, has progressed from metal(titanium ,stainless steel) to biodegradable formulations for graft fixation in anterior cruciate ligament (ACL) reconstruction as the fixation strength of bioabsorbable screws have been shown to be comparable to metal screws. Added advantages for the newer interference screws include lower artefact production during magnetic resonance imaging (MRI) examination, lower risks of graft laceration during screw insertion, and potentially easier revision should one be required.

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Post time: Jul-21-2021