Bloddless surgical systems are much more efficient, cheaper, and have better recovery rates with less chance of infection and complications arising.
Is this what is used instead of blood?
Allotransplantation (allo- from the Greek meaning "other") is the transplantation of cells, tissues, or organs, sourced from a genetically non-identical member of the same species as the recipient.[1] The transplant is called an allograft or allogeneic transplant or homograft. Most human tissue and organ transplants are allografts.