AANA19 Knee Access Pass-Osteochondral Allograft Transplantation_ Identifying the Biomechanical Impact of Using Smaller Grafts-Dr. Jacob Babu, M.D.

Osteochondral Allograft Transplantation_ Identifying the Biomechanical Impact of Using Smaller Grafts-Dr. Jacob Babu, M.D.

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Video Summary

The study investigated the optimal depth of osteochondral allograft plugs and the impact of pulsatile lavage on graft stability. Testing 15mm diameter plugs at depths of 4, 7, and 10mm showed a significant drop in tensile resistance below 7mm, but no difference between 7mm and 10mm plugs. Compressive strength was similar across depths. Pulsatile lavage, which reduces immunogenic subchondral bone, did not affect graft tensile or compressive stability. The study concludes that 7mm is the minimum effective depth for graft stability and that pulsatile lavage can be used without compromising structural integrity, potentially improving graft integration and reducing immune response.

Keywords

osteochondral allograft

plug depth

tensile resistance

pulsatile lavage

graft stability