The word 'autologous' means 'from the same body'. 'Chondrocyte' means 'a joint cartilage cell'. 

So the procedure of autologous chondrocyte implantation (ACI) is to do with the implantation of a person's own joint cartilage cells back into their body.

If there is a fairly substantial area of joint surface damage in the knee (usually on the end of the thigh bone - the femoral condyle or the patella - the kneecap), it is now possible to take healthy cartilage cells and send them to a laboratory for culture (where they are multiplied and make many cells), and then return them for implantation into the damaged area to grow into healthy cartilage.

Autologous chondrocyte transplantation

This is the editor's 'interpretation' of a 2011 publication in the medical journals that gives an overview of cartilage injury, a brief description of current treatment options and outcomes, and a discussion of principles and techniques of MACI.

Biologic Knee Replacement

A course by knee surgeon, Dr Kevin R Stone M.D. of the Stone Clinic in San Francisco, California, USA.

This is the editor's interpretation of a 2009 medical publication outlining a study that was undertaken by a team from the Cartilage Repair Center at the Brigham and Women's Hospital in Boston, Massachusetts in 2009.

Articular cartilage repair

A short but sound overview of the issue of damage to the joint cartilage, and what can be done about it.

Which articular cartilage repair procedure?

Part 3 of an in-depth review on Articular Cartilage Repair by Karen Hambly PhD BSc MCSP (Sports Scientist/Physiotherapist).