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.

Synonyms: 
ACI
ACT
Autologous chondrocyte transplantation
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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).

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