The cartilage autograft implantation system (CAIS) involves a single surgical treatment of damaged knee cartilage using the patient's own cartilage taken from another part of the knee.
Particulated articular cartilage: CAIS and DeNovo NT. Farr J, Cole BJ, Sherman S and Karas V. J Knee Surg. 2012 Mar;25(1):23-9.
Use of chondral fragments for one stage cartilage repair: A systematic review. Bonasia DE, Marmotti A, Rosso F, Collo G and Rossi R. World J Orthop. 2015 Dec 18; 6(11): 1006–1011.