Long-Term Survival Rate and Outcomes for Amandys Implant: A 10-Year Minimum Follow-up of 84 Cases

Amandys is a radiocarpal pyrocarbon interposition implant indicated for degenerative wrists, showing promising medium-term results. The aim of this study was to evaluate the outcomes of the implant with a minimum follow-up of 10 years. This retrospective monocentric study included 84 implants in 76 patients who underwent the procedure. Preoperative and follow-up assessments included clinical evaluation, functional scores, and X-rays measurements. A total of 41 implants in 39 patients were evaluated at a mean follow-up of 12.64 years. At the final follow-up, average scores for pain (visual analogue scale) was 2.3, Patient-Rated Wrist Evaluation 26.3, QuickDASH 30.8. Grip strength was 71% of contralateral side. Flexion and extension were, respectively, 32 and 37 degrees. The satisfaction rate was 94.9%. There were 10 revision surgeries (13.6%); the survival rate was 86.4%. Radiological findings remained stable over time. The Amandys implant proves to be a durable alternative to wrist fusion and arthroplasty. The survival rate does not deteriorate at long term. Level of Evidence  IV.