ACL is an abbreviation for 'anterior cruciate ligament'.

anterior cruciate ligament

View of ACL from the front of the bended knee.

ACL - knee cut in half

View of the ACL from the side, with the knee cut in half.


The anterior cruciate ligament

The anterior cruciate ligament is one of the two large ligaments right inside the knee joint, which are both important for knee stability.

anterior cruciate ligament

An 'interpretation' of a 2009 paper looking at the factors that increase the likelihood of developing osteoarthritis after cruciate ligament injury.

What is complex or multiligament instability?

Multiple damaged ligaments require expert evaluation.

Holly Silvers discusses how special training can reduce the incidence of ACL tears.

Cruciate ligaments

A brief overview of the important cruciate ligaments inside the knee.




What is this strange hard bump on knee after recon?

ACL removal.

ACL torn or not??


A Systematic Summary of Systematic Reviews on the Topic of the Anterior Cruciate Ligament. Anderson MJ, Browning WM, III, Urband CE, Kluczynski MA and Bisson LJ. Orthop J Sports Med. 2016 Mar; 4(3): 2325967116634074.

What I have learned about the ACL: utilizing a progressive rehabilitation scheme to achieve total knee symmetry after anterior cruciate ligament reconstruction. Shelbourne KD and Klotz C. J Orthop Sci. 2006 May; 11(3): 318–325.

See also -

eBook - ACL Repair in Children

An easy-to-read book about a challenging subject.