Meniscal allograft using bone plugs to secure the graft.
Meniscal allograft using a tongue-and-groove method of securing the graft with a bone bar.
Where does a meniscal allograft come from?
Usually the meniscus is taken ('harvested') from a cadaver donor, processed in a tissue bank to make it safe and inserted into living recipient, where it replaces their own meniscus. Nowadays it is often harvested still attached to a piece of donor bone, which is slid into a recess made into the recipient's bone so that only the outer edges need to be sewn into place.
Arthroscopic Meniscal Allograft Transplantation With Soft-Tissue Fixation Through Bone Tunnels. Spalding T, Parkinson B, Smith NA, Verdonk P. Arthrosc Tech. 2015 Oct; 4(5): e559–e563.
Meniscal allograft transplants and new scaffolding techniques. Pereira H, Cengiz IF, Gomes S, Espregueira-Mendes J, Ripoll PL, Monllau JC, Reis RL and Oliveira JM. EFORT Open Rev. 2019 Jun; 4(6): 279–295.
Meniscal Allograft Transplantation: Still Effective With Poor Cartilage, But Much Better With Good Cartilage-Better Done Earlier. Kim JM, Lee BS, Bin SI. Arthroscopy. 2018 Jun;34(6):1877-1878.