FAQ - Answer
These situations are always difficult to deal with since the prevention of this type of disturbance is what should have been done in the first place. Your approach sounds reasonable. The only other plausible idea would be to “clean up” any damage to the existing roots by using proper pruning techniques to eliminate any “frayed” ends that may have been damaged. Proper pruning is one of the best ways to minimize pathogens from getting started in open wounds.