# K905613: MTS Knee System

- Pathway: 510(k) (Traditional)
- Applicant: T & R Mfg., Inc.
- Decided: Jun 24, 1991 after 192 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.
73 later devices descend from it; 3 cite it directly.
0 of 74 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
- K100900: Motivation Knee System (2010), 72 descendants of its own
- K113756: Highly Cross Linked VE Central Peg Patella Highly Cross Linked VE Tri-Peg Patella Highly Cross Linked VE Metal Backed PA (2012), 35 descendants of its own
- K122870: Itotal Cruciate Retaining (CR) Knee Replacement System (2013), 33 descendants of its own
- K131467: Itotal Cruciate Retaining (CR) Knee Replacement System (2013), 30 descendants of its own
- K131019: Itotal Cruciate Retaining (C) Knee Replacement System (2013), 30 descendants of its own

Source page: https://510kreport.com/device/K905613
Methodology: https://510kreport.com/methodology