The use of autografts vs allografts is just another example of the advances in medicine that we continue to make over time & the move towards less invasive procedures to reduce overall risk (and subsequently, liability).
I was at OSU when I had my third ACL tear (not fun) & Dr. Kaeding at OSU Sports Med did my reconstruction. Used an cadaver & infused the graft with my own platelets. Was part of a study at the time -- has anyone heard of this or know any significant outcomes? I know that the knee that Dr. Kaeding did vs the knee some hacks at someplace called Cleveland Clinic has felt much more stable over time.
Re: females being more likely to tear their ACL, it seems to the casual observer that the natural valgus nature of the female anatomy, with the femur anchored in wider hip sockets narrowing to the knees, would be a primary factor in an ACL failure. Similarly, males with similar anatomical considerations with a higher carrying angle in the knee than normal might also be predisposed to injury at a rate comparable to females.