Top ACL surgeons meeting in Sweden report both positive and negative news about the injury and findings for corrective surgery. Regardless of repair strategies, i.e. harvesting the patient's own tissue, or using pig tendon; patients can frequently develop secondary problems. Arthritis of the knee becomes common. Re-rupture of the same knee or rupture of the other knee are also all too frequent. While science is moving forward in understanding ACL anatomy, injury is best avoided, since repair comes with a mixed-bag of outcomes. 

Original link: http://www.sfexaminer.com/?p=140681