510(k) · Cleared
ClearedOrthex External Fixation System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
OrthoPediatrics Corp. · KTT Appliance, Fixation, Nail/Blade/Plate Combination, Multiple Component
Cleared on Feb 10, 2023 as substantially equivalent to K151881 (Vilex IN Tennessee, Inc., 2016) after a 53-day review. Its family tree reaches back 12 generations to 1996. 2 later devices descend from it.
- Decided
- Feb 10, 2023
- Review
- 53 days
- Class
- Class II
- Product code
- KTT
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 12 generations to K962616 (1996). 61 ancestors in all, the oldest K792022 (1979). 2 later devices descend from it, 2 citing it directly.
- Root · 12 generations backK962616 Synthes Dorsal Distal Radius Plate (DDRP) SystemSynthes (Usa) · 1996
- 8 generations between
- 3 generations backK093047 Smith & Nephew Circular Fixation SystemSmith & Nephew, Inc. · 2010 · Recalled
- 2 generations backK110069 Smith & Nephew, Inc Spatialframe V4.1 Web-Based SoftwareSmith & Nephew, Inc. · 2011
- 1 generation backK151881 X-Fix Line AdditionsVilex IN Tennessee, Inc. · 2016 · Recalled
- This deviceK223786 Orthex External Fixation SystemOrthoPediatrics Corp. · 2023
- Descendant · cites it directly · 1 of its ownK243798 Orthex External Fixation SystemOrthoPediatrics Corp. · 2025
- Descendant · cites it directly · 0 of its ownK252625 The Response Ortho Smart Fixator - Hexapod SystemResponse Ortho Solutions, LLC · 2025
Show all 12 generations
- Root · 12 generations backK962616 Synthes Dorsal Distal Radius Plate (DDRP) SystemSynthes (Usa) · 1996
- 11 generations backK982732 Synthes (Usa) Distal Radius Plate System (DRPS)Synthes · 1998
- 10 generations backK023007 Distal Radius Fracture Repair SystemHand Innovations, Inc. · 2002
- 9 generations backK030198 Hand Innovations, Inc. Distal Radius Fracture Repair SystemHand Innovations, Inc. · 2003
- 8 generations backK032705 Distal Radius Fracture Repair SystemHand Innovations, Inc. · 2003
- 7 generations backK050932 Distal Volar Radius Anatomical Plate SystemHand Innovations, Inc. · 2005 · Recalled
- 6 generations backK051735 Peri-Loc Locking Bone Plates and Locking Bone Screws for the Upper…Smith & Nephew, Inc. · 2005
- 5 generations backK071563 Peri-Loc Periarticular Locked Plating SystemSmith & Nephew, Inc. · 2007
- 4 generations backK090675 Smith & Nephew, Inc. VLP Foot Plating, Screw System and AccessoriesSmith & Nephew, Inc. · 2009
- 3 generations backK093047 Smith & Nephew Circular Fixation SystemSmith & Nephew, Inc. · 2010 · Recalled
- 2 generations backK110069 Smith & Nephew, Inc Spatialframe V4.1 Web-Based SoftwareSmith & Nephew, Inc. · 2011
- 1 generation backK151881 X-Fix Line AdditionsVilex IN Tennessee, Inc. · 2016 · Recalled
- This deviceK223786 Orthex External Fixation SystemOrthoPediatrics Corp. · 2023
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 |
|---|---|---|---|---|---|
| −12 | K962616 | Synthes Dorsal Distal Radius Plate (DDRP) System | Synthes (Usa) | 1996 | — |
| −11 | K982732 | Synthes (Usa) Distal Radius Plate System (DRPS) | Synthes | 1998 | — |
| −10 | K023007 | Distal Radius Fracture Repair System | Hand Innovations, Inc. | 2002 | — |
| −9 | K030198 | Hand Innovations, Inc. Distal Radius Fracture Repair System | Hand Innovations, Inc. | 2003 | — |
| −8 | K032705 | Distal Radius Fracture Repair System | Hand Innovations, Inc. | 2003 | — |
| −7 | K050932 | Distal Volar Radius Anatomical Plate System | Hand Innovations, Inc. | 2005 | 1 |
| −6 | K051735 | Peri-Loc Locking Bone Plates and Locking Bone Screws for the Upper Extremity | Smith & Nephew, Inc. | 2005 | — |
| −5 | K071563 | Peri-Loc Periarticular Locked Plating System | Smith & Nephew, Inc. | 2007 | — |
| −4 | K090675 | Smith & Nephew, Inc. VLP Foot Plating, Screw System and Accessories | Smith & Nephew, Inc. | 2009 | — |
| −3 | K093047 | Smith & Nephew Circular Fixation System | Smith & Nephew, Inc. | 2010 | 1 |
| −2 | K110069 | Smith & Nephew, Inc Spatialframe V4.1 Web-Based Software | Smith & Nephew, Inc. | 2011 | — |
| −1 | K151881 | X-Fix Line Additions | Vilex IN Tennessee, Inc. | 2016 | 2 |
| 0 (this device) | K223786 | Orthex External Fixation System | OrthoPediatrics Corp. | 2023 | — |
| +1 | K243798 | Orthex External Fixation System | OrthoPediatrics Corp. | 2025 | — |
| +1 | K252625 | The Response Ortho Smart Fixator - Hexapod System | Response Ortho Solutions, LLC | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1979 | 1 | 0 |
| 1983 | 1 | 0 |
| 1987 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 3 | 0 |
| 2005 | 4 | 0 |
| 2006 | 3 | 0 |
| 2008 | 1 | 0 |
| 2014 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2025 | 2 | 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 KTT? 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 KTT device
- #1 K242861 TrueLok Elevatescore 21.3 · 14 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 |
|---|---|---|---|
| * | K151881 | X-Fix Line AdditionsSummary page 4…. Predicate Device and Reference Device Substantial equivalence is claimed to the following predicate device: • Primary Predicate: X-Fix Line Additions (K151881, OrthoPediatrics Corp.) This submission includes the following reference device: • Reference Predicate: Orthofix Truel… | 2016 |
| † | K170650 | Orthofix TrueLok Hexapod System (TL-HEX) V2.0 | 2017 |
What descends from it? (2)
2 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?
- The line of descent spans 27 years and passes through 6 companies; a new generation was cleared every 1.8 years on median.
- 18 of the 61 ancestors have a recall of any class.
- Of its descendants, K243798 (OrthoPediatrics Corp., 2025) has gone furthest, with 1 descendant of its own.
- 3 other devices also cite its predicate K151881.
How does its category compare?
All KTT devicesKTT Appliance, Fixation, Nail/Blade/Plate Combination, Multiple Component: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.
FDA decisions per year · KTT
10in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · KTT
88in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · KTT
2in 2021
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · KTT
673in 2025
MAUDE reports naming product code KTT, 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 | 9 | 55 | 2 | 45 |
| 2008 | 11 | 73 | 1 | 66 |
| 2009 | 11 | 94 | 2 | 45 |
| 2010 | 12 | 148 | 1 | 121 |
| 2011 | 10 | 157 | 0 | 196 |
| 2012 | 9 | 140 | 4 | 527 |
| 2013 | 7 | 87 | 7 | 898 |
| 2014 | 14 | 129 | 0 | 445 |
| 2015 | 12 | 60 | 0 | 401 |
| 2016 | 10 | 142 | 0 | 400 |
| 2017 | 11 | 184 | 1 | 485 |
| 2018 | 6 | 149 | 14 | 597 |
| 2019 | 8 | 110 | 3 | 800 |
| 2020 | 9 | 200 | 0 | 942 |
| 2021 | 10 | 83 | 2 | 961 |
| 2022 | 3 | 25 | 0 | 627 |
| 2023 | 7 | 29 | 0 | 554 |
| 2024 | 5 | 90 | 0 | 523 |
| 2025 | 10 | 88 | 0 | 673 |
| 2026 | 5 | 68 | 11 | — |
What is it indicated for?
The OrthoPediatrics Orthex External Fixation System is intended for external fixation with the following indications:
• Stabilization of Fractures & Osteotomy
• Rear and Mid-foot Foot Arthrodesis
• Adult and Pediatric Leg Lengthening
• Correction of Bone Deformity in Upper & Lower Extremities
The P&C Software is intended to be used as a component of multilateral external fixation system for the indications listed above.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K223786 · printed Nov 6, 2026
Cite this page
510(k) Report. “K223786: Orthex External Fixation System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K223786
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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