Overview
Allograft transplantation uses donor cartilage and bone to repair large joint defects.

Indications
Large focal defects not suitable for autograft.

Procedure overview
A matched donor graft is shaped and implanted into the defect.

Recovery
Protected weight‑bearing and long‑term rehabilitation.

Risks and complications
Graft failure, disease transmission (rare), and persistent pain.

Alternatives
Autograft transfer or MACI.