Aptis

Constant wrist pain is often associated with a damaged disal radio-ulnar joint, which is loacted at the end of the forearm. This is where the radius is supported by and rotates around ulna. The pain is a result of damage to the joint, including cartilage and sorrounding soft tissue structures.
This is why APTIS has developed a revolutionary device. It’s safe, and it works. Here’s how it works. During the prosthesis implantation procedure, a metal plate is attached to the radius. The ulna is checked and if needed carefully trimmed to allow for the best possible fit, a metal stem is then inserted down the interior of the ulna. The polymer ball then slides on to a highly polished peg on the top of the ulna stem and is secured to the metal device on the radius with a small metal cap.

Ulnar Stem in optional lengths and diameters.