The amount of maci applied depends on the size of the cartilage damage The maci film is trimmed by your surgeon to match the size and shape of the damage, to ensure the damaged area is completely covered. Of these two problems, isolated injuries and defects are much less common than arthritis. Matrix autologous chondrocyte implantation (maci) is a surgical procedure for the treatment of painful full thickness cartilage defects in the knee Maci, autologous cultured chondrocytes on porcine collagen membrane, is a cellular sheet that consists of autologous chondrocytes seeded on a 3 x 5 cm, resorbable porcine type i/iii collagen membrane, for implantation into cartilage defects of the knee. This procedure uses the body’s own cells to repair cartilage defects in the knee and has been fda approved since 2016.
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