RT Journal Article SR Electronic A1 Vinall, Phil T1 MAST is Safe and Effective in Treatment of Chondral Defects of Foot and Ankle JF MD Conference Express YR 2014 FD SAGE Publications VO 14 IS 34 SP 10 OP 11 DO 10.1177/155989771434007 UL http://mdc.sagepub.com/content/14/34/10.abstract AB Matrix-associated stem cell transplantation (MAST) is a modified version of matrix-induced autologous chondrocyte implantation (ACI) that allows for implantation of a potentially higher concentration of stem cells. This article discusses the use of MAST for the treatment of chondral defects of the foot and ankle.