510(k) · Cleared
ClearedFORZA XP Expandable Spacer System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Orthofix US, LLC · MAX Intervertebral Fusion Device With Bone Graft, Lumbar
Cleared on Jan 5, 2022 as substantially equivalent to K211704 (Orthofix, Inc., 2021) after a 19-day review. Its family tree reaches back 25 generations to 1984. 1 of the 297 devices in its family, counting itself, has a Class I recall. 4 later devices descend from it.
- Decided
- Jan 5, 2022
- Review
- 19 days
- Class
- Class II
- Product code
- MAX
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 25 generations to K841189 (1984). 292 ancestors in all, the oldest K792352 (1979). 4 later devices descend from it, 2 citing it directly. 1 of the 297 devices in this family, counting this one, has a Class I recall.
- Root · 25 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 21 generations between
- 3 generations backK202666 CONSTRUX Mini PTC Spacer SystemOrthofix, Inc. · 2020
- 2 generations backK203342 CONSTRUX Mini Ti Spacer SystemOrthofix, Inc. · 2021 · Recalled
- 1 generation backK211704 CONSTRUX Mini PEEK Spacer System/CONSTRUX Mini PEEK VBR System…Orthofix, Inc. · 2021
- This deviceK213951 FORZA XP Expandable Spacer SystemOrthofix US, LLC · 2022
- Descendant · cites it directly · 2 of its ownK240830 Reef TO/TA System; Regatta Lateral System; Explorer TO System…Orthofix Medical, Inc. · 2024
- Descendant · 2 generations on · 0 of its ownK253420 Admiral ACP System; Explorer TO System; Laminoplasty System; Manta…SeaSpine Orthopedics Corporation · 2026
- Descendant · 2 generations on · 0 of its ownK251617 X-PAC® TLIF Expandable Posterior Cage System; X-PAC® LLIF Expandable…Expanding Innovations, Inc. · 2025
- Descendant · cites it directly · 0 of its ownK243739 AxCess® Expandable Interbody SystemElliquence, LLC · 2025
Show all 25 generations
- Root · 25 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 24 generations backK990148 Stackable Cage SystemDepuy Motech Acromed · 1999
- 23 generations backK003043 Surgical Titanium Mesh SystemDepuyacromed · 2001
- 22 generations backK022793 Tetris Spinal ImplantSignus Medical, LLC · 2003
- 21 generations backK031757 Peek Tetris Spinal ImplantSignus Medical, LLC · 2003
- 20 generations backK041888 Curved Peek Tetris Spinal ImplantSignus Medizintechnik GmbH · 2004
- 19 generations backK042930 Spacevision Cage SystemSpine Vision, Inc. · 2004
- 18 generations backK062759 Paramount VBR SystemInnovative Spinal Technologies, Inc. · 2007
- 17 generations backK072120 Paramount Intervertebral Body Fusion DeviceInnovative Spinal Technologies, Inc. · 2007
- 16 generations backK073291 Capstone Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2008
- 15 generations backK094025 Crescent Spinal SystemMedtronic Sofamor Danek · 2010
- 14 generations backK110543 Crescent (R) Spinal System TitaniumMedtronic Sofamor Danek USA, Inc. · 2011
- 13 generations backK121683 Acculif TL CageCoalign Innovations, Inc. · 2012
- 12 generations backK123752 Acculif TL and PL CageCoalign Innovations, Inc. · 2013
- 11 generations backK132505 Acculif TL and PL CageCoalign Innovations, Inc. · 2013 · Recalled
- 10 generations backK141217 Acculif TL and PL CageStryker Corporation · 2014 · Recalled
- 9 generations backK143163 AVS® AL and ALign PEEK Spacers, AVS® PL and UniLIF PEEK Spacers…Stryker Corporation · 2015
- 8 generations backK143616 AccuLIF TL and PL CageStryker Corporation · 2015 · Recalled
- 7 generations backK152304 Tritanium PL CageStryker · 2015 · Recalled
- 6 generations backK160125 Cascadia Interbody SystemK2m · 2016
- 5 generations backK182477 Cervical SpacerAdditive Implants, LLC · 2019
- 4 generations backK193359 SureMAX Family of Cervical SpacersAdditive Implants, Inc. · 2020
- 3 generations backK202666 CONSTRUX Mini PTC Spacer SystemOrthofix, Inc. · 2020
- 2 generations backK203342 CONSTRUX Mini Ti Spacer SystemOrthofix, Inc. · 2021 · Recalled
- 1 generation backK211704 CONSTRUX Mini PEEK Spacer System/CONSTRUX Mini PEEK VBR System…Orthofix, Inc. · 2021
- This deviceK213951 FORZA XP Expandable Spacer SystemOrthofix US, LLC · 2022
Class I recalls in this family
- K073202 Ardis Spacer5 generations back · 2008
Most influential descendants
Showing 4 of 4 · See all- K240830Reef TO/TA System; Regatta Lateral System; Explorer TO System; WaveForm C Interbody…Orthofix Medical, Inc. · 2024 · cites it directly2descendants
- K253420Admiral ACP System; Explorer TO System; Laminoplasty System; Manta Ray TDF Spacer…SeaSpine Orthopedics Corporation · 2026 · 2 generations on0descendants
- K251617X-PAC® TLIF Expandable Posterior Cage System; X-PAC® LLIF Expandable Lateral Cage SystemExpanding Innovations, Inc. · 2025 · 2 generations on0descendants
- K243739AxCess® Expandable Interbody SystemElliquence, LLC · 2025 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −25 | K841189 | Oec/Rezaian Spinal Fixator | Orthopedic Equipment Co., Inc. | 1984 | — |
| −24 | K990148 | Stackable Cage System | Depuy Motech Acromed | 1999 | — |
| −23 | K003043 | Surgical Titanium Mesh System | Depuyacromed | 2001 | — |
| −22 | K022793 | Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −21 | K031757 | Peek Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −20 | K041888 | Curved Peek Tetris Spinal Implant | Signus Medizintechnik GmbH | 2004 | — |
| −19 | K042930 | Spacevision Cage System | Spine Vision, Inc. | 2004 | — |
| −18 | K062759 | Paramount VBR System | Innovative Spinal Technologies, Inc. | 2007 | — |
| −17 | K072120 | Paramount Intervertebral Body Fusion Device | Innovative Spinal Technologies, Inc. | 2007 | — |
| −16 | K073291 | Capstone Spinal System | Medtronic Sofamor Danek USA, Inc. | 2008 | — |
| −15 | K094025 | Crescent Spinal System | Medtronic Sofamor Danek | 2010 | — |
| −14 | K110543 | Crescent (R) Spinal System Titanium | Medtronic Sofamor Danek USA, Inc. | 2011 | — |
| −13 | K121683 | Acculif TL Cage | Coalign Innovations, Inc. | 2012 | — |
| −12 | K123752 | Acculif TL and PL Cage | Coalign Innovations, Inc. | 2013 | — |
| −11 | K132505 | Acculif TL and PL Cage | Coalign Innovations, Inc. | 2013 | 3 |
| −10 | K141217 | Acculif TL and PL Cage | Stryker Corporation | 2014 | 3 |
| −9 | K143163 | AVS® AL and ALign PEEK Spacers, AVS® PL and UniLIF PEEK Spacers, AVS® TL PEEK… | Stryker Corporation | 2015 | — |
| −8 | K143616 | AccuLIF TL and PL Cage | Stryker Corporation | 2015 | 4 |
| −7 | K152304 | Tritanium PL Cage | Stryker | 2015 | 1 |
| −6 | K160125 | Cascadia Interbody System | K2m | 2016 | — |
| −5 | K182477 | Cervical Spacer | Additive Implants, LLC | 2019 | — |
| −4 | K193359 | SureMAX Family of Cervical Spacers | Additive Implants, Inc. | 2020 | — |
| −3 | K202666 | CONSTRUX Mini PTC Spacer System | Orthofix, Inc. | 2020 | — |
| −2 | K203342 | CONSTRUX Mini Ti Spacer System | Orthofix, Inc. | 2021 | 1 |
| −1 | K211704 | CONSTRUX Mini PEEK Spacer System/CONSTRUX Mini PEEK VBR System, CONSTRUX Mini… | Orthofix, Inc. | 2021 | — |
| 0 (this device) | K213951 | FORZA XP Expandable Spacer System | Orthofix US, LLC | 2022 | — |
| +1 | K240830 | Reef TO/TA System; Regatta Lateral System; Explorer TO System; WaveForm C… | Orthofix Medical, Inc. | 2024 | — |
| +2 | K253420 | Admiral ACP System; Explorer TO System; Laminoplasty System; Manta Ray TDF… | SeaSpine Orthopedics Corporation | 2026 | — |
| +2 | K251617 | X-PAC® TLIF Expandable Posterior Cage System; X-PAC® LLIF Expandable Lateral… | Expanding Innovations, Inc. | 2025 | — |
| +1 | K243739 | AxCess® Expandable Interbody System | Elliquence, LLC | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1996 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 10 | 0 |
| 2002 | 8 | 0 |
| 2003 | 15 | 0 |
| 2004 | 25 | 0 |
| 2005 | 17 | 0 |
| 2006 | 8 | 0 |
| 2007 | 13 | 0 |
| 2008 | 40 | 1 |
| 2009 | 26 | 0 |
| 2010 | 17 | 0 |
| 2011 | 22 | 0 |
| 2012 | 13 | 0 |
| 2013 | 9 | 0 |
| 2014 | 17 | 0 |
| 2015 | 5 | 0 |
| 2016 | 6 | 0 |
| 2017 | 3 | 0 |
| 2018 | 2 | 0 |
| 2020 | 2 | 0 |
| 2021 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2024 | 1 | 0 |
| 2025 | 2 | 0 |
| 2026 | 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.
1 device in this family has a Class I recall. 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 |
|---|---|---|---|
| * | K211704 | CONSTRUX Mini PEEK Spacer System/CONSTRUX Mini PEEK VBR System, CONSTRUX Mini PTC Spacer…Summary page 4…Registration Number: 2183449 Product Code: MAX Classifications: Class II – 21 CFR §888.3080, Intervertebral body fusion device Primary Predicate: K211704 – FORZA XP Spacer System, SE 8/31/2021 Reason for the 510(k) Submission: Product Line Extension Device Description: The FORZA… | 2021 |
What descends from it? (4)
2 later devices cite it directly; ranked here by how many devices descend from each in turn.
Has anything in its family been recalled? (1 Class I)
No FDA recall names this device.
Relatives with a Class I recall
Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.
- K073202Ardis SpacerAbbott Spine, Inc. · 2008 · 5 generations back · ◆ in the 2008 ancestors bar of FIG. 11 Class I recall
What does this lineage say?
- The line of descent spans 38 years and passes through 17 companies; a new generation was cleared every 9 months on median.
- 39 of the 292 ancestors have a recall of any class; 1 has a Class I recall.
- Of its descendants, K240830 (Orthofix Medical, Inc., 2024) has gone furthest, with 2 descendants of its own.
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. 2022, 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?
FORZA XP Expandable Spacer System is indicated for spinal fusion procedures in skeletally mature patients with degenerative disc disease (DDD) at one or two contiguous levels in the lumbar spine (L2-S1). DDD is defined as back pain of discogenic origin with degeneration of the disc confirmed by patient history and radiographic studies. DDD patients may also have up to Grade 1 spondylolisthesis at the involved levels. These patients may have had a…
Read the full statement (126 words)
FORZA XP Expandable Spacer System is indicated for spinal fusion procedures in skeletally mature patients with degenerative disc disease (DDD) at one or two contiguous levels in the lumbar spine (L2-S1). DDD is defined as back pain of discogenic origin with degeneration of the disc confirmed by patient history and radiographic studies. DDD patients may also have up to Grade 1 spondylolisthesis at the involved levels. These patients may have had a previous non-fusion surgery at the involved level(s).
FORZA XP Expandable Spacer System is intended for use with autograft and/or allograft comprised of cancellous and/or corticocancellous bone graft and supplemental fixation.
Patients must have undergone a regimen of at least six months of non-operative treatment prior to being treated with FORZA XP Expandable Spacer System.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K213951 · printed Nov 6, 2026
Cite this page
510(k) Report. “K213951: FORZA XP Expandable Spacer System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K213951
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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