# K934589: Kirschner Performance Total Knee System Porous Coated

- Pathway: 510(k) (Traditional)
- Applicant: Kirschner Medical Corp.
- Decided: Jul 13, 1994 after 292 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
No predicates in its family tree.
17 later devices descend from it; 1 cites it directly.
0 of 18 devices in its family (counting itself) have a Class I recall.

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

## Most influential descendants
- K021559: Ascent All-Poly PS Tibial Bearings (2002), 16 descendants of its own
- K082019: Freedom Total Knee System (2009), 15 descendants of its own
- K091280: Freedom Total Knee Cruciate Retaining (CR) Femoral Component (2009), 7 descendants of its own
- K131481: Freedom PCK Components (2014), 6 descendants of its own
- K160771: Destiknee Total Knee System (2016), 3 descendants of its own

Source page: https://510kreport.com/device/K934589
Methodology: https://510kreport.com/methodology