# K050723: MG II Total Knee System Stemmed Tibial Baseplate Components

- Pathway: 510(k) (Special)
- Applicant: Zimmer, Inc.
- Decided: Apr 20, 2005 after 30 days
- Product code: JWH (Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer/Metal/Polymer)
- Device class: 2
- Regulation: 21 CFR 888.3560
- 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 K892800 (1989). 1 ancestor in all.
6 later devices descend from it; 1 cites it directly.
0 of 8 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K892800: MG II Porous Total Knee System, Zimmer, Inc. (1989) Summary page 1.

## Most influential descendants
- K133737: Zimmer (R)  Persona the Personalized Kee System 14X +30MM Tapered Stem Extension (2014), 5 descendants of its own
- K181947: Persona Revision Knee System (2018), 4 descendants of its own
- K191625: Persona Revision Knee System (2019), 1 descendant of its own
- K243724: Persona® Revision Knee System (Persona Revision SoluTion™ Femoral Components) (2025), 0 descendants of its own
- K210829: Persona Revision Knee System Femoral Metaphyseal Cones (2021), 0 descendants of its own

## Indications for use
Total knee replacement is indicated for patients suffering from severe knee pain and disability due to rheumatoid arthritis, osteoarthritis, primary and secondary traumatic arthritis, polyarthritis, collagen disorders, avascular necrosis of the femoral condyle, or pseudogout. These devices are intended for cemented use only.

Source page: https://510kreport.com/device/K050723
Methodology: https://510kreport.com/methodology