"Increasing stage number indicates a more severe level of degeneration, with grades 3 and 4 correlating with poorer post-repair return to normal function, thus serving as a possible contraindication for surgical repair 4."
Line 3:119·Only use medical adjectival hyphens where the letters at the end and start of the compound word are the same, e.g. post-transplant. In this case, don't use the hyphen: 'post-repair'.