Devices descending from K071991
29 later devices reach Modification to Scorpio NRG Knee System through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K200395 | LOSPA II Knee System (EXULT Knee Replacement System) | Corentec Co., Ltd. | 2020 | 2 | — |
| +1 | K192084 | Madison Total Knee System | Implanet, S.A. | 2019 | 0 | — |
| +1 | K161414 | Anatomic Total Knee System | Amplitude | 2017 | 1 | — |
| +1 | K103733 | United U2 Xpe Total Knee System | United Orthopedic Corporation | 2011 | 8 | 2 |
| +1 | K082019 | Freedom Total Knee System | Maxx Orthopedics, Inc. | 2009 | 15 | — |
| +2 | K261563 | Freedom Total Knee System (E-Poly Tibial Liners) | Maxx Orthopedics, Inc. | 2026 | 0 | — |
| +2 | K253314 | Freedom Infinia™ Total Knee System | Maxx Orthopedics, Inc. | 2025 | 0 | — |
| +2 | K250382 | Freedom Total Knee System (All-poly Tibial Plate) | Maxx Orthopedics, Inc. | 2025 | 1 | — |
| +2 | K240863 | Freedom® Total Knee System | Maxx Orthopedics, Inc. | 2024 | 0 | — |
| +2 | K230078 | TRAX® CR Total Knee System | Amplitude | 2023 | 0 | — |
| +2 | K222700 | Tibial baseplate, Tibial insert | United Orthopedic Corporation | 2022 | 0 | — |
| +2 | K212034 | LOSPA TKR System | Corentec Co., Ltd. | 2021 | 0 | — |
| +2 | K200912 | Freedom (R) - TiNbN Coated Knee | Maxx Orthopedics, Inc. | 2020 | 2 | — |
| +2 | K201851 | EXULT Femoral component trial - Left, EXULT Femoral component trial - Right | Corentec Co., Ltd. | 2020 | 0 | — |
| +2 | K161705 | U2 Total Knee System E-XPE products | United Orthopedic Corporation | 2017 | 1 | — |
| +2 | K161360 | U2 Total Knee System, PSA Tibial Insert | United Orthopedic Corporation | 2017 | 0 | — |
| +2 | K160771 | Destiknee Total Knee System | Meril Healthcare Private Limited | 2016 | 3 | — |
| +2 | K150829 | U2 Total Knee System- Additional Sizes | United Orthopedic Corporation | 2015 | 3 | — |
| +2 | K150680 | Freedom Cementless Femoral Component | Maxx Orthopedics, Inc. | 2015 | 1 | — |
| +2 | K132752 | Ultracongruent Insert | United Orthopedic Corporation | 2014 | 5 | — |
| +2 | K131481 | Freedom PCK Components | Maxx Orthopedics, Inc. | 2014 | 6 | — |
| +2 | K131864 | U2 Tibial Baseplate- Cma Type, Tibial Insert and Augment | United Orthopedic Corporation | 2014 | 5 | — |
| +2 | K091280 | Freedom Total Knee Cruciate Retaining (CR) Femoral Component | Maxx Orthopedics, Inc. | 2009 | 7 | — |
| +3 | K253144 | Freedom® Total Knee System – Titan PCK Components | Maxx Orthopedics, Inc. | 2025 | 0 | — |
| +3 | K212839 | Opulent TiNbN Coated Knee | Meril Healthcare Pvt., Ltd. | 2021 | 1 | — |
| +3 | K210961 | U2 Total Knee System, XPE Tibial Insert, PS PLUS | United Orthopedic Corporation | 2021 | 0 | — |
| +3 | K172936 | Destiknee™ Total Knee System | Meril Healthcare Pvt., Ltd. | 2017 | 2 | — |
| +3 | K152430 | All Poly Tibial Component | United Orthopedic Corporation | 2016 | 0 | — |
| +4 | K222816 | Opulent TiNbN Coated Knee | Meril Healthcare Pvt., Ltd. | 2022 | 0 | — |