RecruitingThe Prevalence of Neuropathic Pain Pathophysiology Associated With Ankle FractureThis application addresses the Peer Reviewed Medical Research Program Investigator-Initiated Research Award FY21 W81XWH-22-CPMRP-IIRA area of Chronic Pain Management Research Program- The investigators will utilize subjects who have sustained ankle fractures and may develop chronic pain following bone union. No attempt will be made to affect the experimental outcome in the subjects. This study will adhere to a core set of standards for rigorous study design and reporting to maximize the reproducibility and translational potential of research.