510(k) · Cleared
Recalled · Class II · 2024PERLA® TL posterior osteosynthesis system
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Spineart · NKB Thoracolumbosacral Pedicle Screw System
Cleared on Feb 5, 2020 as substantially equivalent to K172101 (Spineart, 2017) and 3 other predicates after a 61-day review. Its family tree reaches back 20 generations to 2001. 1 of the 508 devices in its family, counting itself, has a Class I recall. 7 later devices descend from it. It has been recalled 2 times.
- Decided
- Feb 5, 2020
- Review
- 61 days
- Class
- Class II
- Product code
- NKB
- Recalls
- 2
- Predicates
- 4
Its longest line of descent runs back 20 generations to K003155 (2001). 500 ancestors in all, the oldest K781443 (1978). 7 later devices descend from it, 6 citing it directly. 1 of the 508 devices in this family, counting this one, has a Class I recall.
- Root · 20 generations backK003155 Vertebral Body ReplacementOsteotech, Inc. · 2001
- 16 generations between
- 3 generations backK143248 Reform Pedicle Screw SystemPrecision Spine, Inc. · 2014
- 2 generations backK150856 Reform Pedicle Screw SystemPrecision Spine, Inc. · 2015
- 1 generation backK173130 Reform® Midline Cortical Screw SystemPrecision Spine, Inc. · 2017
- This deviceK193396 PERLA® TL posterior osteosynthesis systemSpineart · 2020
- Descendant · cites it directly · 4 of its ownK203222 PERLA TL Posterior Osteosynthesis SystemSpineart · 2020
- Descendant · cites it directly · 3 of its ownK203506 PERLA® TL posterior osteosynthesis systemSpineart · 2021 · Recalled
- Descendant · cites it directly · 2 of its ownK213470 PERLA® TL Posterior Osteosynthesis SystemSpineart · 2022
- Descendant · cites it directly · 1 of its ownK231069 PERLA® TL Posterior Thoraco-lumbar Fixation SystemSpineart SA · 2023
- Descendant · cites it directly · 0 of its ownK253966 PERLA® TL Posterior Thoraco-lumbar Fixation SystemSpineart SA · 2026
Show all 20 generations
- Root · 20 generations backK003155 Vertebral Body ReplacementOsteotech, Inc. · 2001
- 19 generations backK012254 VBROsteotech, Inc. · 2001
- 18 generations backK021791 Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2002
- 17 generations backK023570 Modification to Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2002
- 16 generations backK030601 Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2003
- 15 generations backK040536 Modification to Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2004
- 14 generations backK041556 Modification to Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2004
- 13 generations backK043561 Modification to Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2004
- 12 generations backK060719 Modification to Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2006
- 11 generations backK061938 Verte-Stack Spinal SystemMedtronic Sofamor Danek, Inc. · 2006
- 10 generations backK062427 Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2006
- 9 generations backK070742 Modification to Vertex Reconstruction SystemMedtronic Sofamor Danek · 2007
- 8 generations backK110522 Vertex Reconstruction System, Vertex Select Reconstruction SystemMedtronic Sofamor Danek USA, Inc. · 2011
- 7 generations backK113593 Nextgen Altius Oct SystemBiomet Spine (Aka Ebi, LLC) · 2012
- 6 generations backK123549 Polaris Spinal System - Ballista II Percutaneous Screw Placement…Biomet Spine (Aka Ebi, LLC) · 2013 · Recalled
- 5 generations backK131615 Polaris Spinal SystemBiomet Spine (Aka Ebi, LLC) · 2013
- 4 generations backK133746 Polaris Spinal SystemBiomet Spine (Aka Ebi, LLC) · 2014 · Recalled
- 3 generations backK143248 Reform Pedicle Screw SystemPrecision Spine, Inc. · 2014
- 2 generations backK150856 Reform Pedicle Screw SystemPrecision Spine, Inc. · 2015
- 1 generation backK173130 Reform® Midline Cortical Screw SystemPrecision Spine, Inc. · 2017
- This deviceK193396 PERLA® TL posterior osteosynthesis systemSpineart · 2020
Showing 5 of 7 descendants. See all descendants
Descendants cleared per year
Class I recalls in this family
- K100952 Modification to Synthes Matrix System4 generations back · 2010
Most influential descendants
Showing 5 of 7 · See all- K203222PERLA TL Posterior Osteosynthesis SystemSpineart · 2020 · cites it directly4descendants
- K203506PERLA® TL posterior osteosynthesis systemSpineart · 2021 · cites it directly3descendants
- K213470PERLA® TL Posterior Osteosynthesis SystemSpineart · 2022 · cites it directly2descendants
- K231069PERLA® TL Posterior Thoraco-lumbar Fixation SystemSpineart SA · 2023 · cites it directly1descendant
- K253966PERLA® TL Posterior Thoraco-lumbar Fixation SystemSpineart SA · 2026 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −20 | K003155 | Vertebral Body Replacement | Osteotech, Inc. | 2001 | — |
| −19 | K012254 | VBR | Osteotech, Inc. | 2001 | — |
| −18 | K021791 | Verte-Stack Spinal System | Medtronic Sofamor Danek | 2002 | — |
| −17 | K023570 | Modification to Verte-Stack Spinal System | Medtronic Sofamor Danek | 2002 | — |
| −16 | K030601 | Verte-Stack Spinal System | Medtronic Sofamor Danek | 2003 | — |
| −15 | K040536 | Modification to Verte-Stack Spinal System | Medtronic Sofamor Danek | 2004 | — |
| −14 | K041556 | Modification to Verte-Stack Spinal System | Medtronic Sofamor Danek | 2004 | — |
| −13 | K043561 | Modification to Verte-Stack Spinal System | Medtronic Sofamor Danek | 2004 | — |
| −12 | K060719 | Modification to Verte-Stack Spinal System | Medtronic Sofamor Danek | 2006 | — |
| −11 | K061938 | Verte-Stack Spinal System | Medtronic Sofamor Danek, Inc. | 2006 | — |
| −10 | K062427 | Verte-Stack Spinal System | Medtronic Sofamor Danek | 2006 | — |
| −9 | K070742 | Modification to Vertex Reconstruction System | Medtronic Sofamor Danek | 2007 | — |
| −8 | K110522 | Vertex Reconstruction System, Vertex Select Reconstruction System | Medtronic Sofamor Danek USA, Inc. | 2011 | — |
| −7 | K113593 | Nextgen Altius Oct System | Biomet Spine (Aka Ebi, LLC) | 2012 | — |
| −6 | K123549 | Polaris Spinal System - Ballista II Percutaneous Screw Placement System | Biomet Spine (Aka Ebi, LLC) | 2013 | 2 |
| −5 | K131615 | Polaris Spinal System | Biomet Spine (Aka Ebi, LLC) | 2013 | — |
| −4 | K133746 | Polaris Spinal System | Biomet Spine (Aka Ebi, LLC) | 2014 | 1 |
| −3 | K143248 | Reform Pedicle Screw System | Precision Spine, Inc. | 2014 | — |
| −2 | K150856 | Reform Pedicle Screw System | Precision Spine, Inc. | 2015 | — |
| −1 | K173130 | Reform® Midline Cortical Screw System | Precision Spine, Inc. | 2017 | — |
| 0 (this device) | K193396 | PERLA® TL posterior osteosynthesis system | Spineart | 2020 | — |
| +1 | K203222 | PERLA TL Posterior Osteosynthesis System | Spineart | 2020 | — |
| +1 | K203506 | PERLA® TL posterior osteosynthesis system | Spineart | 2021 | 2 |
| +1 | K213470 | PERLA® TL Posterior Osteosynthesis System | Spineart | 2022 | — |
| +1 | K231069 | PERLA® TL Posterior Thoraco-lumbar Fixation System | Spineart SA | 2023 | — |
| +1 | K253966 | PERLA® TL Posterior Thoraco-lumbar Fixation System | Spineart SA | 2026 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1978 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 10 | 0 |
| 1996 | 10 | 0 |
| 1997 | 10 | 0 |
| 1998 | 19 | 0 |
| 1999 | 13 | 0 |
| 2000 | 27 | 0 |
| 2001 | 29 | 0 |
| 2002 | 28 | 0 |
| 2003 | 29 | 0 |
| 2004 | 40 | 0 |
| 2005 | 39 | 0 |
| 2006 | 29 | 0 |
| 2007 | 20 | 0 |
| 2008 | 31 | 0 |
| 2009 | 28 | 0 |
| 2010 | 29 | 1 |
| 2011 | 23 | 0 |
| 2012 | 15 | 0 |
| 2013 | 8 | 0 |
| 2014 | 6 | 0 |
| 2015 | 6 | 0 |
| 2016 | 3 | 0 |
| 2017 | 5 | 0 |
| 2018 | 2 | 0 |
| 2019 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 2 | 0 |
| 2024 | 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.
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 NKB device
- #1 K223494 CD Horizon Spinal Systemscore 40.4 · 30 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (4)
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 |
|---|---|---|---|
| * | K172101 | ROMEO® 2 Posterior Osteosynthesis SystemSummary page 4…888.3070 Device panel ORTHOPEDIC Primary predicate: ROMEO® 2 Posterior Osteosynthesis System manufactured by Spineart (K172101) Legally marketed Additional predicate: Mariner Outrigger Revision System manufactured by predicate devices SeaSpine Ortho… | 2017 |
| * | K183639 | Mariner Outrigger Revision SystemSummary page 4…Spineart (K172101) Legally marketed Additional predicate: Mariner Outrigger Revision System manufactured by predicate devices SeaSpine Orthopedics Corp. (K183639); Reform® Midline Cortical Screw System manufactured by Precision Spine, Inc (K173130); Reform Pedicle Screw… | 2019 |
| * | K173130 | Reform® Midline Cortical Screw SystemSummary page 4…nufactured by predicate devices SeaSpine Orthopedics Corp. (K183639); Reform® Midline Cortical Screw System manufactured by Precision Spine, Inc (K173130); Reform Pedicle Screw System manufactured by Precision Spine, Inc (K151422) The PERLA®… | 2017 |
| * | K151422 | Reform Pedicle Screw SystemSummary page 4…Screw System manufactured by Precision Spine, Inc (K173130); Reform Pedicle Screw System manufactured by Precision Spine, Inc (K151422) The PERLA® TL posterior osteosynthesis system is intended to provide immobilization an… | 2015 |
What descends from it? (7)
6 later devices cite it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K203222 | PERLA TL Posterior Osteosynthesis System | 2020 | 4 |
| K203506 | PERLA® TL posterior osteosynthesis system | 2021 | 3 |
| K213470 | PERLA® TL Posterior Osteosynthesis System | 2022 | 2 |
| K231069 | PERLA® TL Posterior Thoraco-lumbar Fixation System | 2023 | 1 |
| K253966 | PERLA® TL Posterior Thoraco-lumbar Fixation System | 2026 | 0 |
| K242764 | MediRod Pedicle Screw System | 2024 | 0 |
Has anything in its family been recalled? (1 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Mar 15, 2024 | Class II | Z-1758-2024 | Process design | Due to receiving information regarding difficulties with the insertion of a setscrew inside a screw head. Issues involved, either: 1. The setscrew is not tightened to torque 2. The setscrew is tightened to torque but position askew |
| Apr 9, 2021 | Class II | Z-1975-2021 | Process control | Due to external labelling error/mix-up. Affected product external labels list the incorrect rod size. |
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.
- K100952Modification to Synthes Matrix SystemSynthes Spine · 2010 · 4 generations back · ◆ in the 2010 ancestors bar of FIG. 11 Class I recall
What does this lineage say?
- The line of descent spans 19 years and passes through 7 companies; a new generation was cleared every 9 months on median.
- 56 of the 500 ancestors have a recall of any class; 1 has a Class I recall.
- Of its descendants, K203222 (Spineart, 2020) has gone furthest, with 4 descendants of its own.
- 4 other devices also cite its predicate K172101.
How does its category compare?
All NKB devicesNKB Thoracolumbosacral Pedicle Screw System: FDA decisions, review times, recalls and adverse event reports over 20 years. 2020, this device’s year, is highlighted.
FDA decisions per year · NKB
24in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NKB
61in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · NKB
1in 2025
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · NKB
1,171in 2025
MAUDE reports naming product code NKB, 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 | 38 | 87 | 4 | 34 |
| 2008 | 36 | 59 | 5 | 82 |
| 2009 | 44 | 71 | 33 | 171 |
| 2010 | 37 | 111 | 4 | 462 |
| 2011 | 48 | 84 | 3 | 577 |
| 2012 | 60 | 79 | 13 | 1,747 |
| 2013 | 35 | 73 | 0 | 1,962 |
| 2014 | 46 | 90 | 3 (1) | 1,671 |
| 2015 | 55 | 90 | 3 | 1,446 |
| 2016 | 50 | 84 | 1 | 1,585 |
| 2017 | 63 | 69 | 1 | 1,618 |
| 2018 | 56 | 61 | 3 | 1,684 |
| 2019 | 39 | 84 | 1 | 1,915 |
| 2020 | 48 | 68 | 1 | 2,076 |
| 2021 | 32 | 61 | 0 | 1,745 |
| 2022 | 34 | 88 | 5 | 1,339 |
| 2023 | 44 | 72 | 2 | 919 |
| 2024 | 39 | 57 | 3 | 1,614 |
| 2025 | 24 | 61 | 1 | 1,171 |
| 2026 | 30 | 91 | 3 | — |
What is it indicated for?
The PERLA® TL posterior osteosynthesis system is intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine: degenerative disc disease; spondylolisthesis; fracture; dislocation; scoliosis; kyphosis; spinal tumor; and failed previous fusion (pseudarthrosis). When used…
Read the full statement (113 words)
The PERLA® TL posterior osteosynthesis system is intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine: degenerative disc disease; spondylolisthesis; fracture; dislocation; scoliosis; kyphosis; spinal tumor; and failed previous fusion (pseudarthrosis).
When used for posterior non-cervical pedicle screw fixation in pediatric patients, the PERLA® TL posterior osteosynthesis system is indicated as an adjunct to fusion to treat adolescent idiopathic scoliosis.
The PERLA® TL posterior osteosynthesis system is intended to be used with autograft and/or allograft.
Pediatric pedicle screw fixation is limited to a posterior approach.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K193396 · printed Nov 4, 2026
Cite this page
510(k) Report. “K193396: PERLA® TL posterior osteosynthesis system.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K193396
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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