Clickbait title. Later on they call it "implant", not transplant. Of course they don't replace the spinal cord and there isn't even a donator involved.
The procedure begins with blood cells from the patient, which are reprogrammed into stem-cell-like cells capable of becoming any cell type. Fat tissue is also collected to create a custom hydrogel scaffold, into which the stem-like cells develop into a spinal cord structure. This engineered tissue is then implanted, replacing scarred areas and reconnecting the nervous system.
The procedure begins with blood cells from the patient, which are reprogrammed into stem-cell-like cells capable of becoming any cell type. Fat tissue is also collected to create a custom hydrogel scaffold, into which the stem-like cells develop into a spinal cord structure. This engineered tissue is then implanted, replacing scarred areas and reconnecting the nervous system.