It’s not possible except by regrowing the tree from the trunk. Plants have a much different circulatory system that doesn’t have main arteries and veins that can easily be reattached together. Since they use capillary action to move fluid around rather than a pumping heart, the xylem and phloem are microscopic and distributed throughout the trunk instead of branching like human blood vessels. Aligning enough of them back together to keep a large trunk alive is impossible, especially since trees form calluses over injuries to prevent infection.