Brian Cole, MD, MBA, (Chicago, IL) provides an in-depth scientific review of osteochondral allograft transplantation procedures.  Osteochondral allografts have been used for many years with reported patient satisfaction rates over 90% (Bugbee W. et al. The Journal of Knee Surgery 2012). This procedure should be considered for patients with a substantial cartilage defect when looking for a restorative procedure.  Osteochondral allografts are provided with a high degree of chondrocyte viability from Arthrex alliance tissue banks.