LARS stands for Ligament Augmentation and Reconstruction System. 

LARS artificial ligaments are made from an industrial strength polyester fibre which has the ideal characteristics for ligament replacement.  Each type of LARS ligament contains a specific number of lengths of fibres, depending on the intended use.  The number of fibres is specific to the ligament that they are made for as they mimic the natural anatomical structure.

This structure is placed alongside the damaged ligament, and provides an ideal scaffold for the normal healing tissue to grow into, rather like ivy growing up a tree. The new tissue quickly covers the synthetic fibres of the artificial ligament, and replaces the damaged parts of the injured ligament.

The design of the LARS ligament differs greatly from the older types of ligaments, and LARS has been in clinical use for 15 years with excellent results and no reported cases of causing inflammation in the knee.