# K020274: WMT Modular Ulnar Head Implant

- Pathway: 510(k) (Traditional)
- Applicant: Wrightmedicaltechnologyinc
- Decided: Feb 22, 2002 after 25 days
- Product code: KXE (Prosthesis, Wrist, Hemi-, Ulnar)
- Device class: 2
- Regulation: 21 CFR 888.3810
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K010786 (2001). 1 ancestor in all.
No later device cites it as a predicate yet.
0 of 2 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K010786: Ulnar Head Implant, Avanta Orthopaedics, Inc. (2001) Summary page 2.

## Indications for use
The WMT Modular Ulnar Head Implant is indicated for the following indications: Replacement of the distal ulnar head for disorders of the distal radioulnar joint in rheumatoid, degenerative and post-traumatic arthritis presenting with the following findings: -pain and weakness of the wrist joint not improved by nonoperative treatment; -instability of the ulnar head with radiographic evidence of dislocation or erosive changes of the distal radioulnar joint; -failed ulnar head resection,; e.g. Darrach resection Primary replacement after fracture of the ulnar head or neck. Revision following failed ulnar head arthroplasty.

Source page: https://510kreport.com/device/K020274
Methodology: https://510kreport.com/methodology