Yu Doi Nam (Mo Dong Hero # 3) spent twenty years as a cripple after being assaulted by Mongol mercenary warriors seeking the Dragon Sabre. Decades later, the medical knowledge of Yu's martial nephew Cheung Mo Gei restored him to some semblance of mobility (could walk with crutches and use his hands and arms normally for common everyday activities), but as of the end of the story, Yu was no longer a practitioner of martial arts.
If it were up to you, would you have restored Yu Doi Nam to functional practitioner of martial arts by the end of the story?