This study focuses on individuals who had a surgery 12 or more months ago that included the implantation of the Phantom Hindfoot TTC/TC Nail System. The purpose of this study is to evaluate the safety and helpfulness of the Phantom Hindfoot TTC Nail and the Phantom ActivCore Nail. Safety will be measured by looking at any problems the patient had during or after surgery. Helpfulness will be measured by looking at answers provided about the patient’s pain and quality of life in the study questionnaire.