510(k) Report

510(k) · Cleared

Cleared

APEX 3D Total Ankle Replacement System

K202373510(k) TraditionalCleared Nov 13, 202086-day reviewClass II21 CFR 888.3110

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Paragon 28, Inc. · HSN Prosthesis, Ankle, Semi-Constrained, Cemented, Metal/Polymer

Cleared on Nov 13, 2020 as substantially equivalent to K192994 (Paragon 28, Inc., 2020) and 1 other predicate after an 86-day review. Its family tree reaches back 14 generations to 1981.

Decided
Nov 13, 2020
Review
86 days
Class
Class II
Product code
HSN
Recalls
None
Predicates
2

Its longest line of descent runs back 14 generations to K810258 (1981). 179 ancestors in all. No later device cites it as a predicate yet.

Other ancestors, by year cleared 2020: 1 other ancestor2017: 1 other ancestor2016: 2 other ancestors2015: 3 other ancestors2013: 6 other ancestors2012: 2 other ancestors2010: 4 other ancestors2011: 1 other ancestor2009: 3 other ancestors2008: 2 other ancestors2006: 4 other ancestors2005: 5 other ancestors2004: 10 other ancestors2003: 4 other ancestors2001: 9 other ancestors2000: 18 other ancestors1999: 9 other ancestors2014: 2 other ancestors2002: 13 other ancestors1997: 11 other ancestors1996: 10 other ancestors1994: 12 other ancestors1992: 3 other ancestors1998: 5 other ancestors1995: 9 other ancestors1993: 4 other ancestors1985: 2 other ancestors1991: 4 other ancestors1988: 1 other ancestor1986: 1 other ancestor1990: 1 other ancestor1984: 1 other ancestor1987: 1 other ancestorReference device: K192819 · OEC Elite · Ge Oec Medical Systems, Inc. · 2019 · recalledK810258 · Proximal Fermoral Hip Replacement · Biomet, Inc. · 1981K974558 · Salvage/Onocology Hip and Total Femur System · Biomet, Inc. · 1998K032396 · Ringloc 36MM Line and Modular Femoral Heads · Biomet, Inc. · 2003 · recalled×2: 2 generations cleared close together, K042051 (2005), K051411 (2005) K061312 · 36MM Biolox Delta Ceramic Heads · Biomet, Inc. · 2006K071535 · Biolox Delta Ceramic Femoral Head · Zimmer, Inc. · 2007 · recalledK082844 · Biolox Delta Ceramic Femoral Head, Biolox Delta Ceramic Femoral Head Offset Sleeve · Encore Medical L.P. · 2008 · recalledK100412 · Biolox Delta Ceramic Femoral Heads · Smith & Nephew, Inc. · 2010×2: 2 generations cleared close together, K103120 (2011), K110087 (2011) ×2: 2 generations cleared close together, K122305 (2012), K123705 (2013) K152893 · Corin Optimized Positioning System (OPS) · Corin USA · 201619801990200020102020
Other ancestors, by generation 1 generation back: 1 other ancestor2 generations back: 9 other ancestors3 generations back: 24 other ancestors4 generations back: 38 other ancestors5 generations back: 35 other ancestors6 generations back: 29 other ancestors7 generations back: 14 other ancestors8 generations back: 12 other ancestors9 generations back: 2 other ancestors K152893 · Corin Optimized Positioning System (OPS) · Corin USA · 2016K123705 · Trinity Non-Occluded Titanium Plasma Sprayed (TPS) Acetabular Shells · Corin USA · 2013 · recalledK122305 · Corin Trinity-I Acetabular Shell · Corin USA · 2012K110087 · Corin Trinity Acetbular System with Hxlpe Liners · Corin USA · 2011K103120 · Corin Biolox Delta Femoral Heads · Corin USA · 2011K100412 · Biolox Delta Ceramic Femoral Heads · Smith & Nephew, Inc. · 2010K082844 · Biolox Delta Ceramic Femoral Head, Biolox Delta Ceramic Femoral Head Offset Sleeve · Encore Medical L.P. · 2008 · recalledK071535 · Biolox Delta Ceramic Femoral Head · Zimmer, Inc. · 2007 · recalledK061312 · 36MM Biolox Delta Ceramic Heads · Biomet, Inc. · 2006K051411 · Arcomxl Polyethylene Liners and Biolox Delta Heads · Biomet, Inc. · 2005 · recalledK042051 · Arcomxl Polyethylene Liners · Biomet, Inc. · 2005 · recalledK032396 · Ringloc 36MM Line and Modular Femoral Heads · Biomet, Inc. · 2003 · recalledK974558 · Salvage/Onocology Hip and Total Femur System · Biomet, Inc. · 1998K810258 · Proximal Fermoral Hip Replacement · Biomet, Inc. · 1981−10−50
  1. Root · 14 generations backK810258 Proximal Fermoral Hip ReplacementBiomet, Inc. · 1981
  2. 10 generations between
  3. 3 generations backK122305 Corin Trinity-I Acetabular ShellCorin USA · 2012
  4. 2 generations backK123705 Trinity Non-Occluded Titanium Plasma Sprayed (TPS) Acetabular ShellsCorin USA · 2013 · Recalled
  5. 1 generation backK152893 Corin Optimized Positioning System (OPS)Corin USA · 2016
  6. This deviceK202373 APEX 3D Total Ankle Replacement SystemParagon 28, Inc. · 2020
Show all 14 generations
  1. Root · 14 generations backK810258 Proximal Fermoral Hip ReplacementBiomet, Inc. · 1981
  2. 13 generations backK974558 Salvage/Onocology Hip and Total Femur SystemBiomet, Inc. · 1998
  3. 12 generations backK032396 Ringloc 36MM Line and Modular Femoral HeadsBiomet, Inc. · 2003 · Recalled
  4. 11 generations backK042051 Arcomxl Polyethylene LinersBiomet, Inc. · 2005 · Recalled
  5. 10 generations backK051411 Arcomxl Polyethylene Liners and Biolox Delta HeadsBiomet, Inc. · 2005 · Recalled
  6. 9 generations backK061312 36MM Biolox Delta Ceramic HeadsBiomet, Inc. · 2006
  7. 8 generations backK071535 Biolox Delta Ceramic Femoral HeadZimmer, Inc. · 2007 · Recalled
  8. 7 generations backK082844 Biolox Delta Ceramic Femoral Head, Biolox Delta Ceramic Femoral Head…Encore Medical L.P. · 2008 · Recalled
  9. 6 generations backK100412 Biolox Delta Ceramic Femoral HeadsSmith & Nephew, Inc. · 2010
  10. 5 generations backK103120 Corin Biolox Delta Femoral HeadsCorin USA · 2011
  11. 4 generations backK110087 Corin Trinity Acetbular System with Hxlpe LinersCorin USA · 2011
  12. 3 generations backK122305 Corin Trinity-I Acetabular ShellCorin USA · 2012
  13. 2 generations backK123705 Trinity Non-Occluded Titanium Plasma Sprayed (TPS) Acetabular ShellsCorin USA · 2013 · Recalled
  14. 1 generation backK152893 Corin Optimized Positioning System (OPS)Corin USA · 2016
  15. This deviceK202373 APEX 3D Total Ankle Replacement SystemParagon 28, Inc. · 2020
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−14K810258Proximal Fermoral Hip ReplacementBiomet, Inc.1981—
−13K974558Salvage/Onocology Hip and Total Femur SystemBiomet, Inc.1998—
−12K032396Ringloc 36MM Line and Modular Femoral HeadsBiomet, Inc.20033
−11K042051Arcomxl Polyethylene LinersBiomet, Inc.20051
−10K051411Arcomxl Polyethylene Liners and Biolox Delta HeadsBiomet, Inc.20051
−9K06131236MM Biolox Delta Ceramic HeadsBiomet, Inc.2006—
−8K071535Biolox Delta Ceramic Femoral HeadZimmer, Inc.20073
−7K082844Biolox Delta Ceramic Femoral Head, Biolox Delta Ceramic Femoral Head Offset…Encore Medical L.P.20081
−6K100412Biolox Delta Ceramic Femoral HeadsSmith & Nephew, Inc.2010—
−5K103120Corin Biolox Delta Femoral HeadsCorin USA2011—
−4K110087Corin Trinity Acetbular System with Hxlpe LinersCorin USA2011—
−3K122305Corin Trinity-I Acetabular ShellCorin USA2012—
−2K123705Trinity Non-Occluded Titanium Plasma Sprayed (TPS) Acetabular ShellsCorin USA20134
−1K152893Corin Optimized Positioning System (OPS)Corin USA2016—
0 (this device)K202373APEX 3D Total Ankle Replacement SystemParagon 28, Inc.2020—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198410
198520
198610
198710
198810
199010
199140
199230
199340
1994120
199590
1996100
1997110
199850
199990
2000180
200190
2002130
200340
2004100
200550
200640
200820
200930
201040
201110
201220
201360
201420
201530
201620
201710
202010
FIG. 1 — Lineage of K202373, 1981–2020Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

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 HSN? 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 HSN device

  1. #1 K192994 Paragon 28 APEX 3D Total Ankle Replacement…score 16.8 · 8 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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What was it cleared against? (2)

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.

TypeNumberDeviceApplicantDecidedRecalls
*K192994Paragon 28 APEX 3D Total Ankle Replacement System
Summary page 4
…ended for cemented use only. Device Description: The Paragon 28 Laser Alignment Guide is a line extension to the APEX 3D Total Ankle Replacement System instrumentation (K192994). The Paragon 28® APEX 3D™ Total Ankle Pag…
Paragon 28, Inc.2020—
*K152893Corin Optimized Positioning System (OPS)
Summary page 5
…28 Laser Alignment Guide is substantially equivalent to the APEX 3D Total Ankle Replacement System Instrumentation (K192994) and the Corin Optimized Positioning System (K152893). The OEC Elite (K192819) is considered a reference device. Substantial Equivalence: The subject Laser Alignment Guide is substa…
Corin USA2016—
†K192819OEC EliteGe Oec Medical Systems, Inc.20194

Also cleared against K192994: 4 other devices →

What descends from it?

No later submission names this one as a predicate yet.

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 39 years and passes through 6 companies; a new generation was cleared every 1.5 years on median.
  • 48 of the 178 ancestors have a recall of any class.
  • 4 other devices also cite its predicate K192994.

How does its category compare?

All HSN devices

HSN Prosthesis, Ankle, Semi-Constrained, Cemented, Metal/Polymer: FDA decisions, review times, recalls and adverse event reports over 20 years. 2020, this device’s year, is highlighted.

FDA decisions per year · HSN

3in 2025

2009: 12010: 22011: 12012: 22013: 42014: 22015: 32016: 32017: 42018: 42019: 22020: 62021: 42022: 12023: 62024: 72025: 32026 (partial year): 2
2007high 7 (2024) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · HSN

58in 2025

2013: 89 days median2015: 233 days median2016: 216 days median2017: 148 days median2018: 89 days median2020: 234 days median2021: 109 days median2023: 112 days median2024: 115 days median2025: 58 days median
2007high 234 (2020) · low 58 (2025)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · HSN

1in 2023

2013: 32016: 12017: 22019: 12021: 32022: 22023: 1
2007high 3 (2013) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · HSN

1,645in 2025

2007: 502008: 662009: 662010: 1202011: 1392012: 1002013: 1062014: 652015: 732016: 1112017: 962018: 1872019: 2772020: 2812021: 2372022: 4532023: 7962024: 1,0952025: 1,645
2007high 1,645 (2025) · low 50 (2007)2025

MAUDE reports naming product code HSN, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—050
20080—066
20091—066
20102—0120
20111—0139
20122—0100
20134893106
20142—065
20153233073
201632161111
20174148296
20184890187
20192—1277
202062340281
202141093237
20221—2453
202361121796
2024711501,095
202535801,645
20262—0—

What is it indicated for?

The APEX 3D Total Ankle Replacement System is indicated as a total ankle replacement in primary surgery for patients with ankle joints damaged by severe rheumatoid, post-traumatic, or degenerative arthritis. Revision surgery for these patients is also indicated for patients with sufficient bone stock present. Components are intended for cemented use only.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K202373: APEX 3D Total Ankle Replacement System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K202373

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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