Devices descending from K121741
35 later devices reach 4-Web Cervical STS (Spinal Truss System) through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K173159 | Cervical Spinal Truss System (CSTS) Interbody Fusion Device | 4Web, Inc. | 2018 | 12 | — |
| +1 | K172446 | SPIRA-C Open Matrix Cervical Interbody | Camber Spine Technologies | 2017 | 6 | — |
| +1 | K170844 | Gemini-C Hybrid Cervical Interbody System | Osseus Fusion Systems, LLC | 2017 | 0 | — |
| +1 | K142112 | 4WEB Spinal Implant Products | 4Web, Inc. | 2014 | 33 | — |
| +2 | K250335 | IVA & AEON Cervical and Lumbar Cage System | K&J Consulting | 2025 | 0 | — |
| +2 | K223837 | SPIRA®-C Integrated Fixation System | Camber Spine Technologies | 2023 | 0 | — |
| +2 | K223362 | Cervical Spine Truss System - Stand Alone (CSTS-SA) Interbody Fusion Device | 4Web Medical, Inc. | 2023 | 3 | — |
| +2 | K221266 | Cervical Spine Truss System (CSTS) Interbody Fusion Device | 4Web Medical, Inc. | 2023 | 3 | — |
| +2 | K222806 | Kodiak C Spinal Implant System | Met One Technologies, LLC | 2022 | 1 | — |
| +2 | K212527 | Cervical Spine Truss System Plating Solution (CSTS-PS) | 4Web Medical, Inc. | 2022 | 0 | — |
| +2 | K193153 | SPIRA-C Integrated Fixation System | Camber Spine Technologies | 2020 | 2 | — |
| +2 | K190870 | Cervical Spinal Truss System-Stand Alone (CSTS-SA) | 4Web, Inc. | 2019 | 10 | — |
| +2 | K180695 | FBC 921 (Alif) | Fbc Device Aps | 2018 | 0 | — |
| +2 | K172392 | Lateral Spinal Truss System (LSTS) Interbody Fusion Device | 4Web, Inc. | 2017 | 1 | — |
| +2 | K171351 | Posterior Spine Truss System (PSTS) Interbody Fusion Device | 4Web, Inc. | 2017 | 7 | — |
| +2 | K170851 | Anterior Spine Truss System (STS) Interbody Fusion Device | 4Web, Inc. | 2017 | 5 | — |
| +3 | K253894 | BMD Titanium Spinal Fusion System | Global Biomedica s.r.o. | 2026 | 0 | — |
| +3 | K253200 | Cervical Spine Truss System - Stand Alone (CSTS-SA) | 4Web Medical, Inc. | 2025 | 0 | — |
| +3 | K233966 | Anterior Spine Truss System-Stand Alone (ASTS-SA) | 4Web Medical, Inc. | 2024 | 1 | — |
| +3 | K231739 | Cervical Spine Truss System (CSTS) | 4Web Medical, Inc. | 2023 | 2 | — |
| +3 | K230851 | Kodiak Lumbar Spacer System | Met One Technologies, LLC | 2023 | 0 | — |
| +3 | K220523 | restor3d TiDAL Lumbar Interbody Fusion Device | Restor3D | 2022 | 2 | — |
| +3 | K211388 | Lateral Spine Truss System (LSTS) Interbody Fusion Device | 4Web Medical, Inc. | 2021 | 0 | — |
| +3 | K210595 | SPIRA-T Oblique Posterior Lumbar Spacers, SPIRA-P Posterior Lumbar Spacers | Camber Spine Technologies, LLC | 2021 | 3 | — |
| +3 | K191134 | IB3D Alif | Medicrea International SA | 2019 | 1 | — |
| +3 | K180347 | 3d Cage | Fims Co., Ltd. | 2019 | 0 | — |
| +3 | K180990 | TirboLOX-L Lumbar IBFD | Captiva Spine, Inc. | 2018 | 1 | — |
| +4 | K243934 | Stable-L Lumbar Interbody System | Nexus Spine, LLC | 2025 | 0 | — |
| +4 | K251117 | Cervical Spine Truss System (CSTS) | 4Web Medical | 2025 | 0 | — |
| +4 | K232256 | Alcantara Thoracolumbar Plate System | Camber Spine Technologies, LLC | 2024 | 0 | — |
| +4 | K234087 | restor3d TIDAL Lumbar Interbody Fusion System | Restor3D | 2024 | 0 | — |
| +4 | K221324 | ENZA-O Titanium Lateral Anterior Lumbar Interbody Fusion (ALIF) | Camber Spine Technologies | 2023 | 0 | — |
| +4 | K223326 | Axiom PSR System | Restor3D | 2023 | 0 | 1 |
| +4 | K200316 | UNiD IB3D ALIF | Medicrea International SA | 2020 | 0 | — |
| +4 | K181229 | TirboLOX-C Cervical IBFD | Captiva Spine, Inc. | 2018 | 0 | — |