Devices descending from K991052
23 later devices reach FS 1000 Knee System through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K121416 | GMK Sphere | Medacta International | 2012 | 20 | — |
| +1 | K020214 | Medial Rotation Knee System | Engineering Consulting Services, Inc. | 2002 | 1 | — |
| +2 | K223548 | GMK Sphere & GMK SpheriKA Cementless | Medacta International S.A. | 2023 | 1 | — |
| +2 | K221850 | GMK 3D Metal Tibial Tray | Medacta International S.A. | 2022 | 1 | — |
| +2 | K211664 | GMK Sphere Revision | Medacta International S.A. | 2021 | 0 | — |
| +2 | K211004 | GMK Spherika Femurs and Fixed Tibial Trays Plus | Medacta International S.A. | 2021 | 4 | — |
| +2 | K202684 | GMK Total Knee System - TiNbN Coating | Medacta International S.A. | 2020 | 3 | — |
| +2 | K202022 | GMK-SPHERE Tibial inserts FLEX Tibial Insert CR and Resurfacing Patella made of E-CROSS… | Medacta International S.A. | 2020 | 1 | — |
| +2 | K173890 | GMK Sphere - Kinematic Alignment | Medacta International S.A. | 2018 | 6 | — |
| +2 | K181635 | GMK Sphere CR Tibial Inserts | Medacta International S.A. | 2018 | 2 | — |
| +2 | K162035 | GMK Sphere | Medacta International S.A. | 2017 | 10 | — |
| +2 | K142069 | GMK Extension | Medacta International | 2014 | 4 | — |
| +2 | K140222 | Saiph Knee System | Matortho | 2014 | 0 | — |
| +2 | K140826 | GMK Sphere Extension | Medacta International | 2014 | 17 | — |
| +2 | K133630 | GMK Short Stem | Medacta International | 2013 | 1 | — |
| +3 | K262057 | GMK Extension | Medacta International SA | 2026 | 0 | — |
| +3 | K253328 | GMK 3D Metal Tibial Tray Extension | Medacta International S.A. | 2026 | 0 | — |
| +3 | K243574 | Evolution® Total Knee Systems - Kinematic Alignment Instrumentation and Technique | Microport Orthopedics, Inc. | 2025 | 1 | — |
| +3 | K203755 | Shoulder System - TiNbN Coating | Medacta International S.A. | 2021 | 0 | — |
| +3 | K210010 | GMK Revision & Hinge Extension - TiNbN Coating | Medacta International S.A. | 2021 | 1 | — |
| +3 | K201343 | Triathlon Total KneeSystem | Howmedica Osteonics Corp., Dba Stryker Orthopaedics | 2020 | 3 | — |
| +4 | K253728 | EVOLUTION® AM BIOFOAM® Tibial System | Microport Orthopedics, Inc. | 2026 | 0 | — |
| +4 | K261898 | Triathlon® Knee System; Triathlon® Hinge Knee System; Scorpio® Total Knee System | Howmedica Osteonics Corp. dba Stryker Orthopaedics | 2026 | 0 | — |