The 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.
TOUCH® CMC 1 (Carpometacarpal) Prosthesis is a cementless, ball-and-socket dual-mobility, total CMC1 joint replacement prosthesis, designed to treat osteoarthritis of the base of the thumb. The TOUCH® CMC 1 Prosthesis was approved by FDA (P240020) on July 10, 2025. Continued approval of the premarket approval application (PMA) is contingent upon the submission of periodic reports (Annual Report), required under 21 CFR 814.84. In order to provide continued reasonable assurance of the safety and effectiveness of the PMA device, data from this post-approval study must be submitted to FDA in a PMA Post Approval Study Report per the requirements set forth in the approval.
Study Type
OBSERVATIONAL
Enrollment
163
The TOUCH® CMC 1 Prosthesis is a commercially available thumb joint implant which is made up of three modular components: 1. TOUCH Cup: a stainless steel trapezial implant (cup) with a dual coating of plasma sprayed titanium and hydroxyapatite; TOUCH Cup is available in two options: Spherical and Conical 2. TOUCH Liner and Neck: a junction implant (neck) topped with a liner pre-assembled to stainless steel neck 3. TOUCH Stem: a titanium alloy metacarpal implant (stem) with a dual coating of plasma sprayed titanium and hydroxyapatite
Clinical Composite Success
1. Improvement of pain: A clinically meaningful improvement in pain during activities defined as a decrease in the Numerical Rating Scale (NRS) pain score of ≥ 30% on a 10-point scale. 2. Maintenance or improvement in function: defined by key pinch strength, which is ≥ 85% of the subject's pre-operative key pinch strength. 3. Safety: success is defined as freedom from: * Subsequent surgical interventions (SSI) (i.e., reoperation, revision, removal of any study component, or supplemental fixations) on the study carpometacarpal joint, or * Serious, device- or procedure-related adverse events
Time frame: 24 Months/2 Years
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.