Inventors say implant could ‘revolutionise’ knee surgery

A new medical screw implant could ‘revolutionise’ major knee surgery, according to its inventors at Aberdeen University.

The fixation mechanism, developed in partnership with the Royal Orthopaedic Hospital in Birmingham, will help treat damage to the cruciate knee ligaments, a common injury for sportspeople.

The GraftBolt is stronger than existing devices and improves the quality of bonding between tendons and bones. This increases the reliability of surgery and reduces the need for follow-up procedures, said Aberdeen’s team leader Dr Bin Wang.

‘ACL [anterior cruciate ligament] injury affects around one in 3,500 people. It is commonly repaired using the patient’s own hamstring tendons to form a quadruple graft that is secured in the tibia — shin bone — and femur — upper leg bone.