In this episode, Marc and Mo are joined by special guest Allan Gross, MD, FRCSC, in a wide-ranging discussion of the past, present, and future of arthroplasty, tumor surgery, and fresh allograft transplantation. Links: None Subspecialties: • Basic Science • Hip • Knee • Oncology • Orthopaedic Essentials • Sports Medicine Keywords: Orthopaedics, orthopedics, JBJS, OrthoEvidence, OE, fresh allograft, immunogenicity, matrix, bone-banking, revision hip arthroplasty, restoration of bone stock, sarcoma, chemotherapy, osteochondral allograft, post-traumatic defect, osteochondritis dissecans, tibial plateau fracture, chondrocyte transplantation, cartilage damage, sports medicine, basic science, resurfacing, arthroscopy, scaffolds, stem cells, embryonic cartilage cells, shelf life, teamwork, evidence-based medicine