A lesion of cartilage at the knee joint can cause significant damage in the long term in view of the low healing potential of articular cartilage.
These events ultimately leading to the emergence of degenerative osteoarthritis.
Many options exist for the treatment of cartilage defects of the knee.
Superficial damage, without damage to the subchondral bone can be treated relatively simply (superficial debridement,drilling (PRIDIE), washing, …).
These treatments, even if they are rapidly effective, are sufficient in no way a guarantee of favorable long-term.
These surgical procedures actually promote the development of fibrocartilage, but it does not have the mechanical properties and durability of articular hyaline cartilage.
Autologous transplantation of cartilage and subchondral bone(OATS), using the mosaic plasty, can guarantee long-term outcomes, but the indications are limited (surface and location of the lesion) and requires an arthrotomy (openjoint) leading to a relatively long post-operative discharge.
Culture of hyaline cartilage grafts are very expensive and require two episodes of surgery, with a postoperative important immobilization.
The surfaces of the lesions that can be treated by this surgical procedure is also limited.