Original title: Evolution of the experience with the semiconstrained distal radioulnar joint arthroplasty: A single center review of medium-term outcomes and complications
Martina Greminger, Laima Bandzaite, Inga Swantje Besmens, Gabriella Fischer +1 · September 2026
Wrist injuries can damage the joint between the two forearm bones, known as the distal radioulnar joint. This causes severe pain and limits how well a person can use their arm. To fix this, doctors can replace the damaged joint using an artificial implant called Aptis. This implant restores joint stability so the wrist can move again. Researchers studied how patients fared years after receiving this implant to see if surgeon experience improved results. They found that the implant significantly reduced pain. Patients also kept a stable range of motion and stable weight-bearing ability over time. No infections occurred. However, surgeons had to perform revision surgeries in 27% of cases, showing that doctors need an extremely precise surgical technique to avoid complications.
Imagine replacing a worn-out hinge on a heavy door. You install a new one that lets the door swing smoothly. But if the hinge isn't perfectly aligned, the door may stick or loosen over time, and you might need to adjust or replace it again. In this paper, the artificial wrist joint works well for most patients, but getting the alignment exactly right is so hard that about a quarter of cases need a second surgery to fix problems.
For people with chronic wrist pain from a damaged distal radioulnar joint, this implant offers real pain relief and preserves movement. But the 27% revision rate means it's not a simple fix—surgeons need extensive experience to avoid complications. Patients and doctors can weigh the trade-off between better function and the risk of additional surgery.
The abstract does not specify the types or causes of complications requiring revision, nor does it provide data on patient-reported outcomes beyond pain and motion. The sample is small (36 implants) and from a single center, limiting generalizability. The study is retrospective and lacks a control group, so it cannot prove the implant is superior to other treatments.
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Evolution of the experience with the semiconstrained distal radioulnar joint arthroplasty: A single center review of medium-term outcomes and complications — Martina Greminger, Laima Bandzaite, Inga Swantje Besmens et al. — Journal of hand surgery global online — doi:10.1016/j.jhsg.2026.101117
Abstract licence: CC BY
Explanation generated by Synthesis from the abstract — it is not the original paper.