Upper Extremity Replantation and Hand Transplantation — Ischemia, Microsurgery, VCA, and Functional Recovery

This episode reviews the core principles of upper extremity replantation, revascularization, and vascularized composite allotransplantation, focusing on ischemia, microsurgical decision-making, postoperative monitoring, and functional recovery.Topics include the distinction between replantation and revascularization, warm versus cold ischemia, the major difference between digits and muscle-containing amputations, reperfusion injury, and proper amputated-part transport using the bag-in-a-bag ice slurry technique. The episode also covers the “go or no-go” decision, including indications such as thumb amputation, pediatric amputations, multiple digits, and zone I injuries, as well as relative contraindications such as severe crush injury, avulsion injury, and single-digit zone II amputations.The operative sequence is reviewed through the B-FANS framework: bone shortening and fixation, extensor tendon repair, flexor tendon repair, venous and arterial repair, nerve repair, and loose skin closure. Additional microsurgical concepts include vein grafting, vessel injury signs such as ribbon, red line, cobweb, measle, and telescope signs, venous congestion, arterial insufficiency, leech therapy, Aeromonas prophylaxis, and postoperative monitoring with color, capillary refill, and temperature.The episode also explores vascularized composite allotransplantation (VCA), including hand and face transplantation, immunologic risk, ethical trade-offs, candidate selection, donor matching, acute and chronic rejection, the Banff grading system, tacrolimus-based immunosuppression, psychological integration, rehabilitation, spare-part surgery, targeted muscle reinnervation, and the future promise of tolerance induction and chimerism.Part of Dr. Lara’s Plastic Surgery Compendium — a high-yield audio reference for plastic surgery trainees and surgeons. DisclaimerThis podcast is intended for educational purposes only and is designed for medical students, residents, fellows, and practicing healthcare professionals. It is not intended to provide medical advice, diagnosis, or treatment for any individual patient. The content presented reflects general surgical principles and should not be used as a substitute for formal medical training, clinical judgment, or consultation with qualified healthcare professionals. Listening to this podcast does not establish a physician–patient relationship.SEO / Topic Keywordsupper extremity replantation, revascularization, hand transplant, vascularized composite allotransplantation, VCA, digital replantation, ischemia time, warm ischemia, cold ischemia, reperfusion injury, bag-in-a-bag technique, thumb amputation, pediatric replantation, ring avulsion, Urbaniak classification, zone 2 amputation, B-FANS, vein graft, venous congestion, arterial insufficiency, leech therapy, Aeromonas hydrophila, Cipro prophylaxis, hand transplantation, face transplantation, Banff grading, tacrolimus, chronic rejection, spare-part surgery, heterotopic replantation, targeted muscle reinnervation, TMR, chimerism, tolerance induction