# K940537: Kirschner (R) Modular II-C (TM) Total Shoulder System

- Pathway: 510(k) (Traditional)
- Applicant: Kirschner Medical Corp.
- Decided: Aug 29, 1995 after 568 days
- Product code: KWT (Prosthesis, Shoulder, Non-Constrained, Metal/Polymer Cemented)
- Device class: 2
- Regulation: 21 CFR 888.3650
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
281 later devices descend from it; 3 cite it directly.
1 of 282 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

## Most influential descendants
- K982981: New Zimmer Shoulder System (1998), 235 descendants of its own
- K041549: Zimmer Trabecular Metal Humeral Stem (2004), 218 descendants of its own
- K052906: Zimmer Trabecular Metal Reverse Shoulder System (2005), 216 descendants of its own
- K060704: Zimmer Trabecular Metal Reverse Shoulder System, Sizes 8MM and 10MM (2006), 207 descendants of its own
- K063569: Equinoxe Reverse Shoulder System (2007), 190 descendants of its own

Source page: https://510kreport.com/device/K940537
Methodology: https://510kreport.com/methodology