Lin's argument is that, for severely deformed patients, if too few screws are inserted or the adjustment of the back does not go far enough, then there's no point in undergoing the surgery to start with.
他進一步解釋，對於嚴重脊椎畸型的病人來說，鋼釘若打太少，無法牢固；矯正的角度若不夠，手術也等於白作。