Abstract
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.
Keywords
wrist arthroplasty - pyrocarbon implant - Amandys - interposition - long-term
