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 Transcription

Video Summary

The video transcript discusses the use of osteochondral grafts for addressing osteochondral defects. The dimensions of the grafts are currently not standardized, and shorter grafts have been proposed to have benefits such as decreased recipient site morbidity and decreased immunoreactivity. However, shorter grafts may also lead to decreased stability. The video also explores the use of pulsatile lavage in the grafts, which has shown benefits such as decreased immunoreactivity and improved host-graft integration. However, there are concerns about its effect on stability. The study aimed to determine the minimum depth threshold for graft stability and investigate the effect of pulsatile lavage. Results showed that a significant drop in resistance to tensile forces was observed for grafts smaller than seven millimeters, and seven millimeters seemed to be a functional cutoff. Pulsatile lavage did not appear to affect the structural integrity and stability of the grafts. This study only tested grafts of 15 millimeters in diameter and did not evaluate shear stresses or perform a human cadaveric study.

Asset Caption

Concurrent Scientific Session I: Paper Presentations - Treatments for Knee and Patellafemoral Issues 5.4.2019

Meta Tag

Concept Osteochondral Allograft Plug

Concept Graft Depth

Concept Biomechanical Resistance

Concept Tensile Resistance

Concept Compressive Testing

Keywords

osteochondral grafts

graft dimensions

shorter grafts

pulsatile lavage

graft stability

Osteochondral Allograft Plug

Graft Depth

Biomechanical Resistance

Tensile Resistance

Compressive Testing