510(k) · Cleared
ClearedSynthes Cranial Flap Twist Clamp
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Synthes (Usa) · GXN Plate, Cranioplasty, Preformed, Non-Alterable
Cleared on Jul 20, 1999 after a 49-day review. The FDA summary names its predicate without a number. 70 later devices descend from it.
- Decided
- Jul 20, 1999
- Review
- 49 days
- Class
- Class II
- Product code
- GXN
- Recalls
- None
- Predicates
- 0
70 later devices descend from it, 5 citing it directly.
- This deviceK991860 Synthes Cranial Flap Twist ClampSynthes (Usa) · 1999
- Descendant · cites it directly · 62 of its ownK062857 KLS Martin Quick DiscKLS Martin L.P. · 2006
- Descendant · 2 generations on · 61 of its ownK070169 KLS Martin Quick Disc, Sternal Talon and Sternal Plating - SterileKLS Martin L.P. · 2007
- Descendant · 3 generations on · 45 of its ownK151983 KLS Martin LSS Plating SystemKLS Martin L.P. · 2016
- Descendant · 4 generations on · 39 of its ownK202889 Able Medical Devices Valkyrie Thoracic Fixation SystemJm Longyear Manufacturing, LLC D.B.A. Able Medical Devices · 2021
- Descendant · 5 generations on · 36 of its ownK220782 IdentiTi™ Porous Ti Interbody System, IdentiTi™ NanoTec™ Interbody…Alphatec Spine, Inc. · 2022
Showing 5 of 70 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 70 · See all- K062857KLS Martin Quick DiscKLS Martin L.P. · 2006 · cites it directly62descendants
- K070169KLS Martin Quick Disc, Sternal Talon and Sternal Plating - SterileKLS Martin L.P. · 2007 · 2 generations on61descendants
- K151983KLS Martin LSS Plating SystemKLS Martin L.P. · 2016 · 3 generations on45descendants
- K202889Able Medical Devices Valkyrie Thoracic Fixation SystemJm Longyear Manufacturing, LLC D.B.A. Able Medical Devices · 2021 · 4 generations on39descendants
- K220782IdentiTi™ Porous Ti Interbody System, IdentiTi™ NanoTec™ Interbody System, Transcend™…Alphatec Spine, Inc. · 2022 · 5 generations on36descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K991860 | Synthes Cranial Flap Twist Clamp | Synthes (Usa) | 1999 | — |
| +1 | K062857 | KLS Martin Quick Disc | KLS Martin L.P. | 2006 | — |
| +2 | K070169 | KLS Martin Quick Disc, Sternal Talon and Sternal Plating - Sterile | KLS Martin L.P. | 2007 | — |
| +3 | K151983 | KLS Martin LSS Plating System | KLS Martin L.P. | 2016 | — |
| +4 | K202889 | Able Medical Devices Valkyrie Thoracic Fixation System | Jm Longyear Manufacturing, LLC D.B.A. Able Medical Devices | 2021 | — |
| +5 | K220782 | IdentiTi™ Porous Ti Interbody System, IdentiTi™ NanoTec™ Interbody System… | Alphatec Spine, Inc. | 2022 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 2 | 0 |
| 2008 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 3 | 0 |
| 2015 | 2 | 0 |
| 2016 | 2 | 0 |
| 2021 | 3 | 0 |
| 2022 | 3 | 0 |
| 2023 | 8 | 0 |
| 2024 | 12 | 0 |
| 2025 | 14 | 0 |
| 2026 | 11 | 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 GXN? 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 GXN device
- #1 K260709 ClearFit Ti Ring 14mm (171750);ClearFit Ti…score 13.7 · 8 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 |
|---|---|---|---|
| * | — | Aesculap's Craniofix Titanium Clamp System Named without a submission number |
What descends from it? (70)
See all 705 later devices cite it directly; ranked here by how many devices descend from each in turn.
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?
- Of its descendants, K062857 (KLS Martin L.P., 2006) has gone furthest, with 62 descendants of its own.
How does its category compare?
All GXN devicesGXN Plate, Cranioplasty, Preformed, Non-Alterable: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · GXN
2in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · GXN
69in 2021
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · GXN
6in 2018
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · GXN
24in 2025
MAUDE reports naming product code GXN, 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 | 2 | — | 0 | 3 |
| 2008 | 1 | — | 0 | 17 |
| 2009 | 0 | — | 0 | 17 |
| 2010 | 0 | — | 0 | 23 |
| 2011 | 2 | — | 0 | 20 |
| 2012 | 3 | 102 | 0 | 29 |
| 2013 | 1 | — | 0 | 57 |
| 2014 | 2 | — | 0 | 60 |
| 2015 | 2 | — | 0 | 47 |
| 2016 | 1 | — | 0 | 35 |
| 2017 | 2 | — | 0 | 74 |
| 2018 | 3 | 199 | 6 | 56 |
| 2019 | 0 | — | 0 | 54 |
| 2020 | 5 | 33 | 0 | 63 |
| 2021 | 3 | 69 | 0 | 63 |
| 2022 | 2 | — | 0 | 57 |
| 2023 | 1 | — | 0 | 32 |
| 2024 | 1 | — | 0 | 35 |
| 2025 | 2 | — | 0 | 24 |
| 2026 | 4 | 193 | 0 | — |
What is it indicated for?
Synthes Cranial Flap Twist Clamp is intended to reattach a cranial bone flap to the surrounding Cranium after a craniotomy procedure.
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/K991860 · printed Nov 4, 2026
Cite this page
510(k) Report. “K991860: Synthes Cranial Flap Twist Clamp.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K991860
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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