The aim is to present a technique for pediatric and adult ACL reconstruction using an intraosseous suspensory fixation. This technique uses a 4-strands hamstring graft fixed in the femoral tunnel, with a loop locked in a polyetheretherketone (PEEK) cage. The ACLip® device offers an inside-out drilling system and a closer fixation to the joint than an extracortical button fixation. The technique can be easily used both in adults and in skeletally immature patients. The first practical experience shows promising results regarding the safety and the effectiveness of the technique. Level of evidence: IV.