ACI is not recommended for treating knee problems caused by damaged articular cartilage, unless it is used in studies that are designed to produce good-quality information about the results of the procedure. These results should include measuring any improvement in patients’ quality of life, and the benefits and risks of ACI over a long period of time.

If ACI is offered as part of a clinical study, the doctor should explain that there are uncertainties about the long-term benefits of this procedure and the possible risks, such as locking of the knee, infections and not being able to fully straighten the leg.

  • This guidance updates and replaces NICE technology appraisal 16 (published in December 2000)

  • Get involved