A helicoil interference fixation system comprising : a helicoil (10) comprising a helical body (20) comprising a plurality of turns separated by spaces therebetween, and at least one internal strut (45) extending between at least two turns of the helical body,- and an inserter (5) for turning the helicoil, the inserter comprising at least one groove (70) for receiving the at least one strut; the helicoil being mounted on the inserter such that the at least one strut of the helicoil is mounted in the at least one groove of the inserter, such that rotation of the inserter causes rotation of the helicoil.