AANA19 Knee Access Pass-Failures Following Isolated Osteochondral Allograft Transplantation of the Knee are Associated with Increased Defect Size-Dr. Rachel M. Frank, M.D.

Failures Following Isolated Osteochondral Allograft Transplantation of the Knee are Associated with Increased Defect Size-Dr. Rachel M. Frank, M.D.

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Video Summary

This study examined outcomes of isolated osteochondral allograft transplantation in knee femoral condyles, focusing on defect size relative to condyle size (DCR). In 68 patients (average age 35), significant improvements were seen in most patient-reported outcomes over an average 5-year follow-up. Failure occurred in 12%, linked to higher DCRs, especially in patients aged 40 and above with larger defects. No differences were found based on sex. The study concludes that larger relative defect sizes in older patients increase failure risk, though overall survival rates are high. Limitations include its retrospective single-surgeon design and exclusion of concomitant procedures.

Keywords

osteochondral allograft transplantation

knee femoral condyles

defect size to condyle size ratio

patient-reported outcomes

failure risk in older patients