RecruitingDevice studyTOUCH® CMC 1 New Enrollment US StudyThe purpose of this study is to meet a PMA (P240020) condition of approval of the TOUCH® CMC 1 Prosthesis to evaluate the effectiveness and safety of the prosthesis in the United States (US) population. The device performance in newly enrolled US patients implanted by US surgeons will be compared to device performance observed within the outside the US (OUS) premarket cohort.