# K023667: RT-Plus Solution & RT-Plus Modular Solution Knee

- Pathway: 510(k) (Special)
- Applicant: Plus Orthopedics
- Decided: Dec 24, 2002 after 54 days
- Product code: KRO (Prosthesis, Knee, Femorotibial, Constrained, Cemented, Metal/Polymer)
- Device class: 2
- Regulation: 21 CFR 888.3510
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 2 generations back to K003504 (2001). 2 ancestors in all.
19 later devices descend from it; 3 cite it directly.
0 of 22 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K013340: RT-Plus Knee Additional Components, Plus Orthopedics (2001) Summary page 1.
- K003504: RT-Plus Modular Cemented Knee Components, Plus Orthopedics (2001) Summary page 1.

## Most influential descendants
- K081111: Legion Hinge Knee System (2008), 11 descendants of its own
- K032215: VKS/TC-Plus Revision Knee (2003), 6 descendants of its own
- K121393: Smith & Nephew, Inc. Total Knee System Instrumentation (2012), 5 descendants of its own
- K053390: Columbus (CR) Total Knee System (2006), 5 descendants of its own
- K151118: Smith and Nephew Legion Hinge Knee System (2015), 4 descendants of its own

## Indications for use
The RT-PLUS Knee System is a trkompartmental rotating hinged prosthesis of the total condylar type. The system consists of femoral, tibial and patellar components. It is indicated for use for replacement of the total knee joint in which significant bone loss and/or ligamentous deficiencies have occurred due to tumors, trauma, infections, revision or connective tissue disorders. RT-PLUS Modular Knee provides joint stability when any or all of the following structures are non-functional: MCL, LCL, PCL, ACL or the illiotibial band.

Source page: https://510kreport.com/device/K023667
Methodology: https://510kreport.com/methodology