When is fresh osteochondral allograft (OCA) transplantation indicated for knee cartilage defects?

Doctor’s answer

Fresh Osteochondral Allograft (OCA) transplantation is typically considered for larger (often >2-3 cm²) full-thickness chondral or osteochondral defects with subchondral bone involvement, such as advanced osteochondritis dissecans (OCD), trauma, or prior failed cartilage procedures. Candidacy requires careful assessment of lower-limb alignment, meniscal integrity, and overall degenerative status, with concurrent malalignment correction performed when necessary.

This content is for education. Diagnosis, treatment, and rehabilitation require an individual assessment by a sports medicine specialist.