<prompt> ACL prevents:Anterior dislocation of femurPosterior dislocation of tibiaLateral dislocation of tibiaPosterior dislocation of femur  <response>: Anterior cruciate ligament ACL prevents posterior displacement of femurPDF on tibia and the anterior displacement of tibia on femur, as well. Posterior cruciate ligament- prevent anterior displacement of femur on tibia and the posterior displacement of tibia on femur, as well. 