510(k) · Cleared
ClearedAscent POCT System, Centurion POCT System, Spinal Fixation System (SFS), Firebird Spinal Fixation Systems: (Firebird Deformity Spinal Fixation System, Phoenix MIS Spinal Fixation System, Phoenix CDX MIS Spinal Fixation System, JANUS Midline Fixation Screws, Firebird NXG Spinal Fixation System, JANUS Fenestrated Screws), Connector System, FIREBIRD SI Fusion System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Orthofix, Inc. · NKG Posterior Cervical Screw System
Cleared on Jul 30, 2021 as substantially equivalent to K111183 (Orthofix, Inc., 2011) and 5 other predicates after a 57-day review. Its family tree reaches back 19 generations to 1993. 2 later devices descend from it.
- Decided
- Jul 30, 2021
- Review
- 57 days
- Class
- Class II
- Product code
- NKG
- Recalls
- None
- Predicates
- 6
Its longest line of descent runs back 19 generations to K930834 (1993). 313 ancestors in all, the oldest K781443 (1978). 2 later devices descend from it, 1 citing it directly.
- Root · 19 generations backK930834 AcutractAcu Med, Inc. · 1993
- 15 generations between
- 3 generations backK201664 FIREBIRD SI Fusion SystemOrthofix, Inc. · 2020
- 2 generations backK203138 FIREBIRD SI Fusion SystemOrthofix, Inc. · 2020
- 1 generation backK210667 FIREBIRD SI Fusion SystemOrthofix, Inc. · 2021
- This deviceK211710 Ascent POCT System, Centurion POCT System, Spinal Fixation System…Orthofix, Inc. · 2021
- Descendant · cites it directly · 1 of its ownK252088 Firebird SI Navigation SystemOrthofix US, LLC · 2025
- Descendant · 2 generations on · 0 of its ownK260571 SIMPACT Sacroiliac Joint Fixation System GX Navigation InstrumentsLife Spine, Inc. · 2026
Show all 19 generations
- Root · 19 generations backK930834 AcutractAcu Med, Inc. · 1993
- 18 generations backK051309 Roi Fusion Rods & PlatesReiley Orthopaedics, Inc. · 2005 · Recalled
- 17 generations backK080398 SI Joint Fusion SystemSI-BONE, Inc. · 2008
- 16 generations backK110838 Ifuse Implant SystemSI-BONE, Inc. · 2011
- 15 generations backK122074 Ifuse Implant SystemSI-BONE, Inc. · 2012
- 14 generations backK123850 Ifuse Implant SystemSI-BONE, Inc. · 2013
- 13 generations backK131405 Ifuse Implant SystemSI-BONE, Inc. · 2013
- 12 generations backK141049 Ifuse Implant SystemSI-BONE, Inc. · 2014
- 11 generations backK150714 SI-BONE iFuse Implant SystemSI-BONE, Inc. · 2015
- 10 generations backK151718 iFuse Implant SystemSI-BONE, Inc. · 2015
- 9 generations backK152681 iFuse Implant System (R)SI-BONE, Inc. · 2016
- 8 generations backK160652 iFUSE Implant SystemSI-BONE, Inc. · 2016
- 7 generations backK162733 iFuse Implant System® - iFuse-3D implantSI-BONE, Inc. · 2017
- 6 generations backK182983 iFuse Implant System®SI-BONE, Inc. · 2018
- 5 generations backK183342 SambaScrew 3D SI Fusion SystemOrthofix, Inc. · 2019
- 4 generations backK200696 FIREBIRD SI Fusion SystemOrthofix, Inc. · 2020 · Recalled
- 3 generations backK201664 FIREBIRD SI Fusion SystemOrthofix, Inc. · 2020
- 2 generations backK203138 FIREBIRD SI Fusion SystemOrthofix, Inc. · 2020
- 1 generation backK210667 FIREBIRD SI Fusion SystemOrthofix, Inc. · 2021
- This deviceK211710 Ascent POCT System, Centurion POCT System, Spinal Fixation System…Orthofix, Inc. · 2021
Most influential descendants
Showing 2 of 2 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −19 | K930834 | Acutract | Acu Med, Inc. | 1993 | — |
| −18 | K051309 | Roi Fusion Rods & Plates | Reiley Orthopaedics, Inc. | 2005 | 2 |
| −17 | K080398 | SI Joint Fusion System | SI-BONE, Inc. | 2008 | — |
| −16 | K110838 | Ifuse Implant System | SI-BONE, Inc. | 2011 | — |
| −15 | K122074 | Ifuse Implant System | SI-BONE, Inc. | 2012 | — |
| −14 | K123850 | Ifuse Implant System | SI-BONE, Inc. | 2013 | — |
| −13 | K131405 | Ifuse Implant System | SI-BONE, Inc. | 2013 | — |
| −12 | K141049 | Ifuse Implant System | SI-BONE, Inc. | 2014 | — |
| −11 | K150714 | SI-BONE iFuse Implant System | SI-BONE, Inc. | 2015 | — |
| −10 | K151718 | iFuse Implant System | SI-BONE, Inc. | 2015 | — |
| −9 | K152681 | iFuse Implant System (R) | SI-BONE, Inc. | 2016 | — |
| −8 | K160652 | iFUSE Implant System | SI-BONE, Inc. | 2016 | — |
| −7 | K162733 | iFuse Implant System® - iFuse-3D implant | SI-BONE, Inc. | 2017 | — |
| −6 | K182983 | iFuse Implant System® | SI-BONE, Inc. | 2018 | — |
| −5 | K183342 | SambaScrew 3D SI Fusion System | Orthofix, Inc. | 2019 | — |
| −4 | K200696 | FIREBIRD SI Fusion System | Orthofix, Inc. | 2020 | 1 |
| −3 | K201664 | FIREBIRD SI Fusion System | Orthofix, Inc. | 2020 | — |
| −2 | K203138 | FIREBIRD SI Fusion System | Orthofix, Inc. | 2020 | — |
| −1 | K210667 | FIREBIRD SI Fusion System | Orthofix, Inc. | 2021 | — |
| 0 (this device) | K211710 | Ascent POCT System, Centurion POCT System, Spinal Fixation System (SFS)… | Orthofix, Inc. | 2021 | — |
| +1 | K252088 | Firebird SI Navigation System | Orthofix US, LLC | 2025 | — |
| +2 | K260571 | SIMPACT Sacroiliac Joint Fixation System GX Navigation Instruments | Life Spine, Inc. | 2026 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1978 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1990 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 10 | 0 |
| 1997 | 8 | 0 |
| 1998 | 15 | 0 |
| 1999 | 9 | 0 |
| 2000 | 19 | 0 |
| 2001 | 24 | 0 |
| 2002 | 21 | 0 |
| 2003 | 18 | 0 |
| 2004 | 32 | 0 |
| 2005 | 22 | 0 |
| 2006 | 14 | 0 |
| 2007 | 5 | 0 |
| 2008 | 15 | 0 |
| 2009 | 7 | 0 |
| 2010 | 11 | 0 |
| 2011 | 13 | 0 |
| 2012 | 6 | 0 |
| 2013 | 2 | 0 |
| 2015 | 9 | 0 |
| 2016 | 4 | 0 |
| 2017 | 3 | 0 |
| 2018 | 2 | 0 |
| 2020 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2025 | 1 | 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.
Planning a device in NKG? 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 NKG device
- #1 K252327 CMORE® CT System; CMORE® CT System Navigated…score 19.6 · 22 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (6)
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 |
|---|---|---|---|
| * | K111183 | Ascent Posterior Occipital Thoracic (Poct) System (Titanium & Cobalt Chrome Rods)Summary page 11…FIREBIRD SI Fusion System Class II per 21 CFR§ 888.3040 Review Panel: Orthopedic Device Panel Predicate Devices: Ascent POCT System (K111183) – Orthofix US LLC Centurion POCT System (K201481) – Orthofix US LLC Spin… | 2011 |
| * | K201481 | Centurion POCT SystemSummary page 11…nel: Orthopedic Device Panel Predicate Devices: Ascent POCT System (K111183) – Orthofix US LLC Centurion POCT System (K201481) – Orthofix US LLC Spinal Fixation System (SFS) (K080407) – Orthofix US LLC… | 2020 |
| * | K080407 | Blackstone SFS Parallel Rod ConnectorsSummary page 11…ystem (K111183) – Orthofix US LLC Centurion POCT System (K201481) – Orthofix US LLC Spinal Fixation System (SFS) (K080407) – Orthofix US LLC Firebird Spinal Fixation Systems (K180179) – Orthofix US LLC… | 2008 |
| * | K180179 | Firebird® Spinal Fixation Systems: Firebird System; Firebird Deformity System; Firebird®…Summary page 7…Expiration Date: 06/30/2020 Indications for Use See PRA Statement below. 510(k) Number (if known) K180179 Device Name Firebird Spinal Fixation Systems: Firebird Spinal Fixation System; Firebird Deformity Fixation System; Phoenix MIS S… | 2018 |
| * | K172194 | Connector SystemSummary page 11…x Firebird NXG Spinal Fixation System x JANUS Fenestrated Screws Connector System (K172194) – Orthofix US LLC FIREBIRD SI Fusion System (K210667) – Orthofix US LLC Reason for 510(k) Submissio… | 2017 |
| * | K210667 | FIREBIRD SI Fusion SystemSummary page 11…x JANUS Fenestrated Screws Connector System (K172194) – Orthofix US LLC FIREBIRD SI Fusion System (K210667) – Orthofix US LLC Reason for 510(k) Submission: Orthofix is submitting this Special 510(k) premarket notification for the addit… | 2021 |
What descends from it? (2)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K252088 | Firebird SI Navigation System | 2025 | 1 |
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 28 years and passes through 4 companies; a new generation was cleared every 7 months on median.
- 42 of the 313 ancestors have a recall of any class.
- Of its descendants, K252088 (Orthofix US, LLC, 2025) has gone furthest, with 1 descendant of its own.
- 2 other devices also cite its predicate K111183.
How does its category compare?
All NKG devicesNKG Posterior Cervical Screw System: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.
FDA decisions per year · NKG
6in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NKG
58in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · NKG
2in 2020
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · NKG
153in 2025
MAUDE reports naming product code NKG, 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 | 0 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 17 | 71 | 0 | 4 |
| 2016 | 16 | 87 | 0 | 73 |
| 2017 | 15 | 108 | 0 | 99 |
| 2018 | 12 | 61 | 1 | 127 |
| 2019 | 8 | 50 | 1 | 214 |
| 2020 | 14 | 59 | 2 | 236 |
| 2021 | 7 | 56 | 0 | 704 |
| 2022 | 7 | 108 | 0 | 175 |
| 2023 | 10 | 58 | 0 | 131 |
| 2024 | 3 | 100 | 0 | 206 |
| 2025 | 6 | 58 | 0 | 153 |
| 2026 | 4 | 169 | 0 | — |
What is it indicated for?
When intended to promote fusion of the cervical spine and occipito-cervico-thoracic junction (Occiput – T3), the Ascent POCT System is indicated for: • Degenerative disc disease (defined as neck pain of discogenic origin with degeneration of the disc confirmed by patient history and radiographic studies); • Spondylolisthesis; • Fracture/dislocation; • Spinal Stenosis; • Atlanto-axial fracture with instability; • Occipito-cervical dislocation’ • Tumors’ •…
Read the full statement (1,244 words)
When intended to promote fusion of the cervical spine and occipito-cervico-thoracic junction (Occiput – T3), the Ascent POCT System is indicated for:
• Degenerative disc disease (defined as neck pain of discogenic origin with degeneration of the disc confirmed by patient history and radiographic studies);
• Spondylolisthesis;
• Fracture/dislocation;
• Spinal Stenosis;
• Atlanto-axial fracture with instability;
• Occipito-cervical dislocation’
• Tumors’
• Revision of previous cervical spine surgery
The occipital bone screws are limited to occipital fixation only. The use of the multi-axial screws is limited to placement in the upper thoracic spine (T1-T3) for the treatment of thoracic conditions only. They are not intended to be placed in the cervical spine. The lateral offset adapter is indicated for use in the upper thoracic spine (T1-T3). The hooks are intended to be placed from C1 to T3. The Songer Cables (titanium) System to be used with the Ascent POCT System allows for wire/cable attachment to the posterior cervical spine.
The Ascent POCT System can also be linked to the Spinal Fixation System using the axial or parallel rod connector.
The Centurion POCT System is intended to provide immobilization and stabilization of spinal segments as an adjunct to fusion for the following acute and chronic instabilities of the craniocervical junction, the cervical spine (C1 to C7) and the thoracic spine (T1 – T3): traumatic spinal fractures and/or traumatic dislocations; instability or deformity; failed previous fusions (e.g. pseudoarthrosis); tumors involving the cervical/thoracic spine; and degenerative disease, including intractable radiculopathy and/or myelopathy, neck and/or arm pain of discogenic origin as confirmed by radiographic studies, and degenerative disease of the facets with instability. The Centurion POCT System is also intended to restore the integrity of the spinal column even in the absence of fusion for a limited time period in patients with advanced stage tumors involving the cervical spine in whom life expectancy is of insufficient duration to permit achievement of fusion.
The Centurion POCT System can also be linked to the Orthofix Spinal Fixation System using the Axial or Parallel Rod Connector.
1. When used with the Centurion POCT System or Ascent POCT System for Posterior Occipital-Cervical-Thoracic (Occ – T3) The Connector System is intended to provide immobilization and stabilization of spinal segments as an adjunct to fusion for the following acute and chronic instabilities of the craniocervical junction, the cervical spine (C1 to C7) and the thoracic spine (T1 – T3): traumatic spinal fractures and/or traumatic dislocations; instability or deformity; failed previous fusions (e.g. pseudoarthrosis); tumors involving the cervical/thoracic spine; and degenerative disease, including intractable radiculopathy and/or myelopathy, neck and/or arm pain of discogenic origin as confirmed by radiographic studies, and degenerative disease of the facets with instability. The Connector System is also intended to restore the integrity of the spinal column even in the absence of fusion for a limited time period in patients with advanced stage tumors involving the cervical spine in whom life expectancy is of insufficient duration to permit achievement of fusion.
2. When used with the Firebird Spinal Fixation System/Phoenix MIS Spinal Fixation System or Spinal Fixation System (SFS) for Thoracic, Lumbar, and Sacral Spine Fixation (T1-S2/Ilium) The Connector System is intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion as a pedicle screw fixation system (T1-S2/Ilium), or as an anterolateral fixation system (T8-L5), in the treatment of the following acute and chronic instabilities or deformities:
1. degenerative disc disease (defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies)
2. spondylolisthesis,
3. trauma (i.e., fracture or dislocation),
4. spinal stenosis,
5. deformities or curvatures (i.e., scoliosis, kyphosis, and/or lordosis),
6. tumor,
7. pseudoarthrosis, and
8. failed previous fusion
When used for posterior pedicle screw fixation in pediatric patients, the Connector System implants are indicated as an adjunct to fusion to treat adolescent idiopathic scoliosis. Pediatric pedicle screw fixation is limited to a posterior approach. The Connector System is intended to be used with autograft or allograft.
The Spinal Fixation System (SFS) is intended for non-cervical use in the spine. The Spinal Fixation System (SFS), when used for pedicle screw fixation, is intended only for patients:
• Having severe spondylolisthesis (Grades 3 and 4) at the L5-S1 joint;
• Who are receiving fusion using autogenous bone graft only;
• Who are having the device fixed or attached to the lumbar and sacral spine (L3 and below); and
• Who are having the device removed after the development of a solid fusion mass.
The Spinal Fixation System (SFS), when used as a pedicle screw system in skeletally mature patients, is intended to provide immobilization and stabilization of spinal segments, as an adjunct to fusion, in treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar and sacral spine:
a) Degenerative spondylolistheses with objective evidence of neurologic impairment;
b) Fracture;
c) Dislocation;
d) Scoliosis;
e) Kyphosis;
f) Spinal tumor; and
g) Failed previous fusion (pseudarthrosis)
The Spinal Fixation System (SFS), when used for anterolateral non-pedicle screw fixation to the non-cervical spine, is intended for the following indications:
a) Degenerative disc disease (as defined as back pain of discogenic origin with degenerative disc confirmed by history and radiographic studies);
b) Spondylolistheses;
c) Spinal stenosis;
d) Spinal deformities (i.e., scoliosis, kyphosis, lordosis);
e) Tumor;
f) Pseudoarthrosis;
g) Previous failed fusion; and
h) Trauma (i.e., fracture or dislocation)
The Firebird Spinal Fixation Systems are intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion as a pedicle screw fixation system (T1-S2/Ilium), or as an anterolateral fixation system (T8-L5), in the treatment of the following acute and chronic instabilities or deformities:
1. degenerative disc disease (defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies)
2. spondylolisthesis,
3. trauma (i.e., fracture or dislocation),
4. spinal stenosis,
5. deformities or curvatures (i.e., scoliosis, kyphosis, and/or lordosis),
6. tumor,
7. pseudoarthrosis, and
8. failed previous fusion
When used for fixation to the ilium, the offset connectors of the Firebird Spinal Fixation System must be used in conjunction with pedicle screws placed at the S1 or S2 spinal level.
The Firebird Spinal Fixation Systems components are used with certain components of the Spinal Fixation System (SFS), including rods, rod connectors and cross-connectors.
When used for posterior pedicle screw fixation in pediatric patients, the Firebird Spinal Fixation Systems are indicated as an adjunct to fusion to treat adolescent idiopathic scoliosis. Pediatric pedicle screw fixation is limited to a posterior approach.
The Firebird Spinal Fixation Systems are intended to be used with autograft or allograft.
The Phoenix MIS Fixation System when used with the Firebird Spinal Fixation Systems is indicated to provide the surgeon with a minimally invasive approach for posterior spinal surgery.
The JANUS Midline Fixation Screw and the JANUS Fenestrated Screw when used with the Firebird Spinal Fixation Systems is indicated to provide the surgeon with an open, minimally invasive or midline approach for posterior spinal surgery. The JANUS Fenestrated Screws are intended to be used with saline and radiopaque dye.
The FIREBIRD SI Fusion System is intended for fixation of sacroiliac joint disruptions, and intended for sacroiliac joint fusion for conditions including;
» sacroiliac joint disruptions,
* degenerative sacroiliitis,
* to augment immobilization and stabilization of the sacroiliac joint in skeletally mature patients undergoing sacropelvic fixation as part of a lumbar or thoracolumbar fusion and
* Acute, non-acute, and non-traumatic fractures involving the sacroiliac joint.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K211710 · printed Nov 5, 2026
Cite this page
510(k) Report. “K211710: Ascent POCT System, Centurion POCT System, Spinal Fixation System (SFS), Firebird Spinal Fixation Systems: (Firebird Deformity Spinal Fixation System, Phoenix MIS Spinal Fixation System, Phoenix CDX MIS Spinal Fixation System, JANUS Midline Fixation Screws, Firebird NXG Spinal Fixation System, JANUS Fenestrated Screws), Connector System, FIREBIRD SI Fusion System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K211710
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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