510(k) · Cleared
ClearedCortina [MAX] Lumbar Cage System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Neurostructures, Inc. · MAX Intervertebral Fusion Device With Bone Graft, Lumbar
Cleared on Mar 22, 2018 as substantially equivalent to K171914 (Neurostructures, Inc., 2017) after a 34-day review. Its family tree reaches back 17 generations to 1984. 1 later device descends from it.
- Decided
- Mar 22, 2018
- Review
- 34 days
- Class
- Class II
- Product code
- MAX
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 17 generations to K841189 (1984). 85 ancestors in all. 1 later device descends from it, 1 citing it directly.
- Root · 17 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 13 generations between
- 3 generations backK132505 Acculif TL and PL CageCoalign Innovations, Inc. · 2013 · Recalled
- 2 generations backK141217 Acculif TL and PL CageStryker Corporation · 2014 · Recalled
- 1 generation backK171914 Cortina™ Lumbar Cage SystemNeurostructures, Inc. · 2017
- This deviceK180431 Cortina [MAX] Lumbar Cage SystemNeurostructures, Inc. · 2018
- Descendant · cites it directly · 0 of its ownK192248 Cortina™ [MAX] Lumbar Cage SystemNeurostructures, Inc. · 2019
Show all 17 generations
- Root · 17 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 16 generations backK990148 Stackable Cage SystemDepuy Motech Acromed · 1999
- 15 generations backK003043 Surgical Titanium Mesh SystemDepuyacromed · 2001
- 14 generations backK022793 Tetris Spinal ImplantSignus Medical, LLC · 2003
- 13 generations backK031757 Peek Tetris Spinal ImplantSignus Medical, LLC · 2003
- 12 generations backK041888 Curved Peek Tetris Spinal ImplantSignus Medizintechnik GmbH · 2004
- 11 generations backK042930 Spacevision Cage SystemSpine Vision, Inc. · 2004
- 10 generations backK062759 Paramount VBR SystemInnovative Spinal Technologies, Inc. · 2007
- 9 generations backK072120 Paramount Intervertebral Body Fusion DeviceInnovative Spinal Technologies, Inc. · 2007
- 8 generations backK073291 Capstone Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2008
- 7 generations backK094025 Crescent Spinal SystemMedtronic Sofamor Danek · 2010
- 6 generations backK110543 Crescent (R) Spinal System TitaniumMedtronic Sofamor Danek USA, Inc. · 2011
- 5 generations backK121683 Acculif TL CageCoalign Innovations, Inc. · 2012
- 4 generations backK123752 Acculif TL and PL CageCoalign Innovations, Inc. · 2013
- 3 generations backK132505 Acculif TL and PL CageCoalign Innovations, Inc. · 2013 · Recalled
- 2 generations backK141217 Acculif TL and PL CageStryker Corporation · 2014 · Recalled
- 1 generation backK171914 Cortina™ Lumbar Cage SystemNeurostructures, Inc. · 2017
- This deviceK180431 Cortina [MAX] Lumbar Cage SystemNeurostructures, Inc. · 2018
Most influential descendants
Showing 1 of 1 · See all- K192248Cortina™ [MAX] Lumbar Cage SystemNeurostructures, Inc. · 2019 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −17 | K841189 | Oec/Rezaian Spinal Fixator | Orthopedic Equipment Co., Inc. | 1984 | — |
| −16 | K990148 | Stackable Cage System | Depuy Motech Acromed | 1999 | — |
| −15 | K003043 | Surgical Titanium Mesh System | Depuyacromed | 2001 | — |
| −14 | K022793 | Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −13 | K031757 | Peek Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −12 | K041888 | Curved Peek Tetris Spinal Implant | Signus Medizintechnik GmbH | 2004 | — |
| −11 | K042930 | Spacevision Cage System | Spine Vision, Inc. | 2004 | — |
| −10 | K062759 | Paramount VBR System | Innovative Spinal Technologies, Inc. | 2007 | — |
| −9 | K072120 | Paramount Intervertebral Body Fusion Device | Innovative Spinal Technologies, Inc. | 2007 | — |
| −8 | K073291 | Capstone Spinal System | Medtronic Sofamor Danek USA, Inc. | 2008 | — |
| −7 | K094025 | Crescent Spinal System | Medtronic Sofamor Danek | 2010 | — |
| −6 | K110543 | Crescent (R) Spinal System Titanium | Medtronic Sofamor Danek USA, Inc. | 2011 | — |
| −5 | K121683 | Acculif TL Cage | Coalign Innovations, Inc. | 2012 | — |
| −4 | K123752 | Acculif TL and PL Cage | Coalign Innovations, Inc. | 2013 | — |
| −3 | K132505 | Acculif TL and PL Cage | Coalign Innovations, Inc. | 2013 | 3 |
| −2 | K141217 | Acculif TL and PL Cage | Stryker Corporation | 2014 | 3 |
| −1 | K171914 | Cortina™ Lumbar Cage System | Neurostructures, Inc. | 2017 | — |
| 0 (this device) | K180431 | Cortina [MAX] Lumbar Cage System | Neurostructures, Inc. | 2018 | — |
| +1 | K192248 | Cortina™ [MAX] Lumbar Cage System | Neurostructures, Inc. | 2019 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1996 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 8 | 0 |
| 2002 | 7 | 0 |
| 2003 | 8 | 0 |
| 2004 | 10 | 0 |
| 2005 | 9 | 0 |
| 2006 | 1 | 0 |
| 2007 | 5 | 0 |
| 2008 | 5 | 0 |
| 2009 | 2 | 0 |
| 2010 | 2 | 0 |
| 2011 | 4 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2019 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in MAX? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new MAX device
- #1 K203714 NuVasive Thoracolumbar Interbody Systems…score 102.5 · 24 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K171914 | Cortina™ Lumbar Cage SystemSummary page 4…offered in a variety of styles and sizes to accommodate various patient anatomies. This 510(k) is submitted only for the purposes of changing the name of the Cortina™ (K171914) to the Cortina™ [MAX]. The two devices are otherwise identical, and no changes whatsoever have been made to the Cortina™ (K17191… | 2017 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K192248 | Cortina™ [MAX] Lumbar Cage System | 2019 | 0 |
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 34 years and passes through 12 companies; a new generation was cleared every 11 months on median.
- 9 of the 85 ancestors have a recall of any class.
- Of its descendants, K192248 (Neurostructures, Inc., 2019) has gone furthest, with 0 descendants of its own.
- 1 other device also cites its predicate K171914.
How does its category compare?
All MAX devicesMAX Intervertebral Fusion Device With Bone Graft, Lumbar: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, this device’s year, is highlighted.
FDA decisions per year · MAX
29in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · MAX
85in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MAX
5in 2025
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · MAX
811in 2025
MAUDE reports naming product code MAX, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 7 | 86 | 0 | 12 |
| 2008 | 35 | 88 | 2 | 19 |
| 2009 | 31 | 102 | 9 | 90 |
| 2010 | 29 | 137 | 0 | 154 |
| 2011 | 49 | 98 | 3 | 201 |
| 2012 | 48 | 69 | 11 (1) | 327 |
| 2013 | 58 | 102 | 0 | 380 |
| 2014 | 58 | 115 | 3 | 366 |
| 2015 | 53 | 113 | 1 | 524 |
| 2016 | 64 | 124 | 6 | 647 |
| 2017 | 76 | 116 | 1 | 596 |
| 2018 | 64 | 114 | 4 | 616 |
| 2019 | 60 | 131 | 1 | 699 |
| 2020 | 56 | 106 | 0 | 640 |
| 2021 | 53 | 109 | 0 | 622 |
| 2022 | 41 | 95 | 1 | 618 |
| 2023 | 30 | 87 | 0 | 576 |
| 2024 | 38 | 91 | 1 | 729 |
| 2025 | 29 | 85 | 5 | 811 |
| 2026 | 18 | 95 | 0 | — |
What is it indicated for?
The Cortina™ [MAX] Lumbar Cage System is indicated for use in patients with degenerative disc disease (DDD) at one or two contiguous levels from L2 lo S 1 whose condition requires the use of interbody fusion combined with supplemental fixation. The interior of the Cortina™ [MAX] Lumbar Cage System should be packed with autogenous bone graft (i.e. autograft). DDD is defined as back pain of discogenic origin with degeneration of the disc confim1ed by history and radiographic studies. These patients should be skeletally mature and have had six months of non-operative treatment.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K180431 · printed Nov 6, 2026
Cite this page
510(k) Report. “K180431: Cortina [MAX] Lumbar Cage System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K180431
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026