use jugo to regenerate his arm? I mean jugo was able to regenerate sasuke's organs when they fought bee and Knowing jugo he would most likely do that for sasuke.
but doesn't sasuke already have senju dna? maybe he was just healed from kabuto while the rinnegan was from the sage so no senju dna I guess.Jugo gave chakra and flesh to sasuke But he did not heal organs
He cant do it on that level.
Plus tsunade already made an arm for sasuke .