استفاده از آلوگرفرافت تازه استخواني غضروفي به عنوان يك جايگزين در ضايعات غضروفي سطح مفصلي زانو

A Fresh Osteochondral Allograft Alternative

Background: Different methods have been used for reconstruction of post-traumatic osteochondral defects of knee. We report the long term results of fresh osteochondral allograft for such defects. Materials and Methods: Fresh osteochondral allografts were used for post traumatic knee defects larger than 3cm in diameter and 1 cm in depth. Harvesting of the graft was carried out within 24 hours of the donorsʹ death. Implantation into the recipient was carried out within 72 hours. The grafts were unipolar, fixed by screws and combined with realignment osteotomy if a deformity was present. Meniscal transplantation was also performed when indicated. Results: The survivorship of all grafts in plateaus and condyles at 7.5 years was 85%. This surviorship for femoral condyle was 85% at 10 years. Viable hyaline cartilage was confirmed at 17 years Post surgery. Conclusion: Possibility of reconstrution of big defects (more than 3 cm) and absence of donor site morbidity as in autografts, favour the use of fresh allografts for knee osteoarticular defects.