Bone and cartilage transplant from a donor.
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Osteochondral allograft
An osteochondral allograft is a piece of bone and cartilage donated by another person that is implanted into the damaged area of the knee to repair the defect.
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Osteochondral allografting is a method for treating cartilage injuries that expose the underlying bone. An osteochondral allograft is a piece of tissue containing both bone and cartilage taken from a deceased donor. This tissue is transplanted to replace the damaged cartilage and bone in the patient's joint.
Indications
This procedure is for large areas of damage (15 to 35 millimeters in diameter) with symptoms of pain, swelling, and catching. It is typically for active patients under 50 years of age with high physical demands.
Surgical Procedure
The surgery is performed through an open incision under general or spinal anesthesia. The surgeon measures the defect, removes the damaged tissue, and then shapes a fresh allograft from a deceased donor to fit. The allograft is then press-fit into the defect and can be stabilized with screws or pins. Post-operative care includes wearing a brace for the first two weeks, using crutches, and physical therapy for 8 to 12 weeks.