Chinese surgeons have enabled a man to walk again after an accident severed both his legs at the thigh, marking a rare success for advanced reconstructive procedures. After nearly 20 months of intensive post-operative recovery, the patient is reportedly able to walk indoors with a frame and manage most daily tasks unassisted. Crucially, sensation has returned to his lower legs down to his ankles. The double-thigh replantation, performed at an orthopaedic hospital in eastern China, is a global...