# K121727: Movation Knee System

- Pathway: 510(k) (Special)
- Applicant: Encore Medical L.P.
- Decided: Aug 15, 2012 after 64 days
- Product code: OIY (Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer + Additive/Metal/Polymer + Additive)
- 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: 7 generations back to K810258 (1981). 40 ancestors in all.
14 later devices descend from it; 3 cite it directly.
0 of 55 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K100900: Motivation Knee System, Encore Medical L.P. (2010) Summary page 1.
- K091956: Highly Cross-Linked Vitamin E Uhmwpe Tibial Inserts, Model 391/392-09_19-702_712, Encore Medical L.P. (2010) Summary page 1.

## Most influential descendants
- K143242: Rebel 3DKNEE System (2015), 11 descendants of its own
- K140830: Exprt Revision Knee (2014), 7 descendants of its own
- K160342: EMPOWR PS Knee System (2016), 6 descendants of its own
- K180930: Empowr VVC Tibial Insert (2018), 3 descendants of its own
- K230169: EMPOWR Revision VVC+ (Varus / Valgus Constrained), e+ Tibial Insert (2023), 2 descendants of its own

## Indications for use
The Movation Knee System is Indicated For: Joint replacement is indicated for patients suffering from disability due to: *degenerative, post-traumatic or rheumatoid arthritis; *avascular necrosis of the femoral condyle; *post-traumatic loss of joint configuration, particularly when there is patellofemoral erosion, dystfunction or prior patellectomy; *moderate valgus, varus or flexion deformities; *treatment of fractures that are unmanageable using other techniques. This device may also be indicated in the salvage of previously failed surgical attempts. This system is to be used for cemented applications.

Source page: https://510kreport.com/device/K121727
Methodology: https://510kreport.com/methodology