There is an ongoing clinical study of 25 patients with Denovo NT, and the two year results are in on the first four patients.
(Cartilage, online edition, print edition pending:pages 1-8, 2011 Farr, J. & Yao, J: Chondral Defect Repair with Particulated Juvenile Cartilage Allograft)
Pain scores are going down, and activity scores have gone up nicely so far. This is just what one would expect with a successful repair technique. Furthermore, MRI studies confirm my own
personal results, showing excellent “fill” of the cartilage lesions.
Four patients do not (yet) make a persuasive argument, but the trend is clear. All indications so far are that partculate
cartilage grafting can product very good early term results; no doubt critics will then ask for 5 year and then 10 year results.
Only time can address issues of that nature.