AANA19 Knee Access Pass-Topographic Cartilage and Osseous Matching of a Single Oblong Osteochondral Allograft for Cartilage Defect Treatment on the Medial Femoral Condyle-Dr. Adam Yanke, M.D., PhD.

Topographic Cartilage and Osseous Matching of a Single Oblong Osteochondral Allograft for Cartilage Defect Treatment on the Medial Femoral Condyle-Dr. Adam Yanke, M.D., PhD.

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Video Summary

This study evaluated the topographic and osseous matching of oblong osteochondral allografts for medial femoral condyle lesions using donor tissue from medial and lateral femoral condyles. Using 3DCT models of 24 condyles, results showed medial-to-medial grafts had excellent cartilage surface matching (<0.5mm mismatch), whereas lateral condyle donors demonstrated greater mismatch and step-off, especially for larger grafts. While lateral donors may be reasonable for small grafts, medial donors are recommended, particularly for those new to the technique. Limitations include simulation-based data without clinical biomechanics, highlighting the need for cautious clinical translation.

Keywords

oblong osteochondral allografts

medial femoral condyle lesions

3DCT modeling

cartilage surface matching

graft donor selection