Researchers studied 10 fresh-frozen cadaveric lower limb specimens where an osteochondral defect was created at the centromedial aspect of the talar dome. An autologous osteochondral graft was then transplanted to the defect site.
Researchers found that the osteochondral defect created a significant decrease in force, mean pressure and peak pressure on the medial region of the talus and implanting an osteochondral graft restored that force, mean pressure and peak pressure. However, the anterior portion of the graft carried less force. In this study, there was no correlation between height and pressure when the graft was sunken, flush or proud.
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