Knee injuries arising from sporting activity are common. Such injuries can lead to knee hyaline cartilage damage (as opposed to meniscal injuries which are also referred to as cartilage damage by lay-persons). How commonly hyaline cartilage damage occurs is not clear, and the natural history of such injuries is poorly understood. Orthopaedic and trauma surgeons use a variety of techniques to treat these lesions but few treatments, including autologous chondrocyte transplantation, have been tested in controlled studies. This report is based on studies of patient cohorts with hyaline cartilage defects. These studies indicate that, over a period of 2 years, 60-70% of patients have improved symptoms with a variety of treatments.
In the absence of controlled trials autologous chondrocyte transplantation should be regarded as an experimental therapy. It is recommended that suitable patients are included in randomised trials co-ordinated at National level. Routine commissioning of this procedure cannot be recommended.