The Current Status of Vascularized Composite Allotransplantation: From Experimental Frontier to Reconstructive Reality.

Vascularized composite allotransplantation (VCA) has evolved from an experimental concept into a validated reconstructive option for patients with complex tissue defects. With established success in hand and face transplantation and expanding applications in uterus, penis, and abdominal wall transplants, VCA offers superior functional, esthetic, and psychosocial outcomes compared to traditional reconstruction. However, its broader adoption is limited by immunosuppression requirements and related sequelae, donor scarcity, and reimbursement challenges. This article reviews the clinical status, comparative effectiveness, and future challenges of VCA, emphasizing the need for continued research, standardization, and institutional support to integrate VCA into routine surgical practice.