Devices descending from K973412
154 later devices reach Natural-Knee II Constrained Knee System through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K181947 | Persona Revision Knee System | Zimmer, Inc. | 2018 | 4 | 1 |
| +1 | K173057 | Zimmer Knee Joint Replacement Prostheses MR Labeling | Zimmer, Inc. | 2018 | 5 | 2 |
| +1 | K060192 | Apex Knee System | Omni Life Science, Inc. | 2006 | 111 | 1 |
| +1 | K021740 | Total Knee Cemented, Semi-Constrained | Dj Orthopedics, LLC | 2002 | 52 | — |
| +2 | K243724 | Persona® Revision Knee System (Persona Revision SoluTion™ Femoral Components) | Zimmer, Inc. | 2025 | 0 | — |
| +2 | K210829 | Persona Revision Knee System Femoral Metaphyseal Cones | Zimmer, Inc. | 2021 | 0 | — |
| +2 | K201611 | Apex Knee System | Omnilife Science | 2021 | 0 | — |
| +2 | K191625 | Persona Revision Knee System | Zimmer, Inc. | 2019 | 1 | 1 |
| +2 | K160159 | Active-X Total Knee System | Signature Orthopaedics Pty, Ltd. | 2016 | 6 | — |
| +2 | K112891 | Apex Revision Knee Systems | Omni Life Science, Inc. | 2012 | 5 | 1 |
| +2 | K112906 | Klassic Knee System | Total Joint Orthopedics, Inc. | 2012 | 33 | — |
| +2 | K111062 | Apex Knee System, Apex All Poly Tibia | Omni Life Science, Inc. | 2011 | 0 | — |
| +2 | K102578 | Apex PS Knee System | Omni Life Science, Inc. | 2011 | 8 | — |
| +2 | K101994 | Apex Knee Modular Tibia System | Omnlife Science | 2010 | 6 | 1 |
| +2 | K094017 | Tibial Baseplate Augment Model KC-22118, KC-22128, KC-22138, KC-22148, KC-22158 | Omni Life Science, Inc. | 2010 | 7 | 6 |
| +2 | K093567 | Active Knee Total Knee Replacement System | Anova Implant Solutions, LLC | 2010 | 0 | — |
| +2 | K080842 | Apex Knee System, Model KC-230XY, KC-240XY [ NO Holes, 2 Holes] | Omni Life Science, Inc. | 2008 | 61 | — |
| +2 | K073602 | Modification to: Apex Knee System | Omnlife Science | 2008 | 72 | — |
| +2 | K052687 | Conformis, Inc. Total Knee Repair System | Conformis, Inc. | 2006 | 43 | — |
| +3 | K261275 | Unity Total Knee System, Unity Knee Cementless CR Femur | Corin, Ltd. | 2026 | 0 | — |
| +3 | K243991 | Klassic Knee System - Revision Tibial Baseplate | Total Joint Othopedics, Inc. | 2025 | 1 | — |
| +3 | K232414 | Klassic® Tibial Insert, PS-Post, Klassic All Poly Tibia, PS-Post | Total Joint Othopedics, Inc. | 2023 | 0 | — |
| +3 | K230537 | Klassic Knee Revision System | Total Joint Othopedics, Inc. | 2023 | 2 | — |
| +3 | K211602 | Klassic Knee System | Total Joint Orthopedics, Inc. | 2021 | 0 | — |
| +3 | K210551 | Persona Revision Knee System | Zimmer, Inc. | 2021 | 0 | 1 |
| +3 | K190577 | World Knee Total Knee Systems | Signature Orthopaedics Pty, Ltd. | 2019 | 5 | — |
| +3 | K183596 | Klassic Knee System - Klassic Knee PS-Post Femur; Klassic Knee Tibial Insert, PS-Post… | Total Joint Orthopedics, Inc. | 2019 | 2 | — |
| +3 | K180159 | Klassic® Knee System | Total Joint Orthopedics, Inc. | 2018 | 22 | — |
| +3 | K162422 | Klassic Knee System | Total Joint Orthopedics, Inc. | 2016 | 23 | — |
| +3 | K162256 | Klassic Femur, Porous, Klassic Tibial Baseplate, Porous | Total Joint Orthopedics, Inc. | 2016 | 0 | — |
| +3 | K153437 | Apex Revision Knee System | Omnilife Science | 2015 | 4 | 1 |
| +3 | K153310 | Klassic Knee System | Total Joint Orthopedics, Inc. | 2015 | 24 | — |
| +3 | K153075 | Klassic Knee System | Total Joint Orthopedics, Inc. | 2015 | 24 | — |
| +3 | K150105 | Klassic Knee System-Sombrero Patella | Total Joint Orthopedics, Inc. | 2015 | 24 | — |
| +3 | K140942 | Klassic Knee Tibial Stem Extension | Total Joint Orthopedics, Inc. | 2014 | 27 | — |
| +3 | K131353 | Comprehensive Reverse Shoulder - Titanium Glenosphere | Biomet Manufacturing Corp | 2013 | 60 | — |
| +3 | K131472 | Apex Knee Modular Tibia System | Omni Life Science, Inc. | 2013 | 5 | — |
| +3 | K111184 | Apex PS Knee System - PS-C Insert | Omni Life Science, Inc. | 2011 | 2 | — |
| +3 | K094050 | Itotal CR Knee Replacement System | Conformis, Inc. | 2010 | 41 | — |
| +3 | K080936 | Conformis Total Knee Repiar System (Itotal) Tibial Component: 6.0 MM Thickness | Conformis, Inc. | 2008 | 0 | — |
| +4 | K261734 | Klassic Infection Spacer System | Total Joint Orthopedics, Inc. | 2026 | 0 | — |
| +4 | K240875 | Unity Knee PS-C Tibial Insert | Corin U.S.A. Limited | 2024 | 0 | — |
| +4 | K211877 | Klassic Knee System | Total Joint Orthopedics, Inc. | 2022 | 1 | — |
| +4 | K220737 | World Knee Vit-E All-poly Tibial Inserts (CR, PS and UC), World Knee Vit-E Meniscal… | Signature Orthopaedics Pty, Ltd. | 2022 | 4 | — |
| +4 | K210533 | Inset Reverse Total Shoulder System | Shoulder Innovations, Inc. | 2021 | 3 | — |
| +4 | K202740 | Klassic Knee System Tibial Inserts, PS-Max | Total Joint Orthopedics, Inc. | 2020 | 0 | — |
| +4 | K193373 | Comprehensive® Reverse Shoulder | Biomet, Inc. | 2020 | 20 | 2 |
| +4 | K190562 | iTotal Identity Cruciate Retaining Knee Replacement System | Conformis, Inc. | 2019 | 15 | — |
| +4 | K190280 | Klassic Knee System - Sombrero Patella with Standard Poly, Klassic Knee System -… | Total Joint Orthopedics, Inc. | 2019 | 0 | — |
| +4 | K181611 | Comprehensive Reverse Shoulder System | Biomet Manufacturing Corp | 2018 | 10 | — |
| +4 | K172502 | Comprehensive Augmented Glenoid Components, Comprehensive Standard Baseplate… | Biomet Manufacturing Corp | 2018 | 20 | 1 |
| +4 | K163332 | Apex Revision Knee System | Omnilife Science | 2017 | 3 | — |
| +4 | K140478 | Aequalis Reversed Shoulder Prosthesis | Tornier S.A.S. | 2014 | 21 | — |
| +4 | K122870 | Itotal Cruciate Retaining (CR) Knee Replacement System | Conformis, Inc. | 2013 | 33 | — |
| +4 | K122991 | Itotal Cruciate Retaining (CR) Knee Replacement System | Conformis, Inc. | 2012 | 26 | — |
| +4 | K122033 | Itotal Cruciate Retaining (CR) Knee Replacement System | Conformis, Inc. | 2012 | 26 | — |
| +4 | K120316 | Itotal Cruciate Retaining (CR) Knee Replacement System | Conformis, Inc. | 2012 | 36 | — |
| +4 | K113378 | Conformis Itotal Cruciate Retaining (CR) Knee Replacement System | Conformis, Inc. | 2012 | 36 | — |
| +4 | K120068 | Conformis Itotal CR Knee Replacement System (KRS) | Conformis, Inc. | 2012 | 36 | — |
| +4 | K112780 | Conformis Itotal Cruciate Retaining (CR) Knee Replacement System | Conformis, Inc. | 2011 | 38 | — |
| +4 | K103117 | Itotal Cruciate Retaining (CR) Knee Replacement System | Conformis, Inc. | 2011 | 40 | 1 |
| +5 | K252404 | Comprehensive Reverse Shoulder - HA Glenosphere Baseplates | Biomet Orthopedics | 2026 | 0 | — |
| +5 | K253592 | Zimmer Biomet Reverse Shoulder Prosthesis (Alliance Humeral Bearings, Identity Humeral… | Zimmer, Inc. | 2026 | 0 | — |
| +5 | K252516 | N22 EZ Glenosphere | Shoulder Innovations, Inc. | 2026 | 0 | — |
| +5 | K253239 | Active-V Total Knee System; World Total Knee System | Signature Orthopaedics Pty, Ltd. | 2025 | 0 | — |
| +5 | K252221 | Inset Reverse Total Shoulder System | Shoulder Innovations, Inc. | 2025 | 1 | — |
| +5 | K243643 | restor3d Reverse Total Shoulder Arthroplasty System | Restor3D | 2025 | 1 | 1 |
| +5 | K242253 | JARVIS Glenoid Reverse Shoulder Prosthesis | FH Industrie | 2024 | 1 | — |
| +5 | K240683 | Rx Knee System | Signature Orthopaedics Pty, Ltd. | 2024 | 2 | — |
| +5 | K240876 | Identity Shoulder System | Zimmer, Inc. | 2024 | 1 | — |
| +5 | K233148 | Augment Off-Axis Instrument System | Fix Surgical | 2024 | 2 | — |
| +5 | K231445 | LINK Embrace Shoulder System - Reverse Configuration | Waldemar Link GmbH & Co. KG | 2023 | 0 | — |
| +5 | K223252 | TRULIANT® E-PX Tibial Inserts; TRULIANT® E-PX Patellas | Exactech, Inc. | 2023 | 0 | 1 |
| +5 | K214001 | Comprehensive® Shoulder System, Comprehensive® Reverse Shoulder System | Biomet Manufacturing Corp | 2023 | 1 | — |
| +5 | K212737 | INHANCE™ Reverse Shoulder System | Depuy Ireland UC | 2022 | 9 | — |
| +5 | K212411 | Identity Imprint Knee Replacement System (including Identity Imprint Posterior… | Conformis, Inc. | 2021 | 9 | — |
| +5 | K210191 | Identity Imprint Knee Replacement System | Conformis, Inc. | 2021 | 10 | 1 |
| +5 | K200368 | LINK Embrace Shoulder System - Reverse Configuration | Waldemar Link GmbH & Co. KG | 2021 | 3 | — |
| +5 | K203447 | iTotal Identity Cruciate Retaining (CR) Total Knee Replacement, iTotal Identity… | Conformis, Inc. | 2020 | 12 | — |
| +5 | K200171 | SMR TT Augmented Glenoid System | Lima Corporate S.P.A. | 2020 | 11 | — |
| +5 | K201023 | iTotal® Identity Posterior Stabilized Knee Replacement System | Conformis, Inc. | 2020 | 14 | — |
| +5 | K191746 | SMR TT Augmented Glenoid System | Lima Corporate S.P.A. | 2019 | 12 | — |
| +5 | K191765 | OMNI TiN Coated Apex Knee™ System | Omni Life Science, Inc. | 2019 | 2 | — |
| +5 | K183077 | Delta Xtend Reverse Shoulder System | Depuy (Ireland) | 2019 | 0 | — |
| +5 | K161366 | ConfoMIS iTotal Cruciate Retaining (CR) Knee Replacement System (iTotal CR KRS) | Conformis, Inc. | 2016 | 18 | — |
| +5 | K151293 | Aequalis Ascend Flex Shoulder System, Aequalis Reversed Shoulder Prosthesis | Tornier S.A.S. | 2015 | 20 | — |
| +5 | K140423 | Itotal Cruciate Retaining (CR) Knee Replacement System | Conformis, Inc. | 2014 | 25 | 1 |
| +5 | K133560 | Itotal Cruciate Retaining Knee Replacment System | Conformis, Inc. | 2014 | 0 | — |
| +5 | K131467 | Itotal Cruciate Retaining (CR) Knee Replacement System | Conformis, Inc. | 2013 | 30 | — |
| +5 | K131019 | Itotal Cruciate Retaining (C) Knee Replacement System | Conformis, Inc. | 2013 | 30 | — |
| +5 | K123692 | Pipeline Knee System | Pipeline Orthopedics | 2013 | 0 | — |
| +6 | K260063 | GSPE Spacer | The General Hospital Corporation, d/b/a Massachusetts | 2026 | 0 | — |
| +6 | K253992 | Veritas Reverse Total Shoulder System | Restor3D | 2026 | 0 | — |
| +6 | K254128 | InSet Reverse Total Shoulder System | Shoulder Innovations, Inc. | 2026 | 0 | — |
| +6 | K253624 | INHANCE™ Reverse Shoulder System | Depuy Ireland UC | 2026 | 0 | — |
| +6 | K250644 | MSS - Monobloc stem | Medacta International S.A. | 2026 | 1 | 1 |
| +6 | K252044 | Triathlon® Total Knee System - Triathlon® Gold Femoral Components | Howmedica Osteonics Corp., Dba Stryker Orthopaedics | 2025 | 0 | — |
| +6 | K252411 | JARVIS Glenoid Reverse Shoulder Prosthesis | FH Industrie | 2025 | 0 | — |
| +6 | K241817 | InSet Total Shoulder System | Shoulder Innovations, Inc. | 2025 | 1 | — |
| +6 | K241043 | Augment Off-Axis Instrument System | Fix Surgical | 2024 | 1 | 5 |