510(k) Report

510(k) · Cleared

Cleared

Ultimax Ankle Fusion Rod System

K991790510(k) TraditionalCleared Aug 6, 199972-day reviewClass II21 CFR 888.3020

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

Encore Orthopedics, Inc. · HSB Rod, Fixation, Intramedullary And Accessories

Cleared on Aug 6, 1999 after a 72-day review. The FDA summary names no predicate by number. 54 later devices descend from it.

Decided
Aug 6, 1999
Review
72 days
Class
Class II
Product code
HSB
Recalls
None
Predicates
0

54 later devices descend from it, 3 citing it directly.

Descendants, by year cleared 2008: 2 descendants cleared2004: 1 descendant cleared2002: 1 descendant cleared2005: 1 descendant cleared2012: 5 descendants cleared2009: 1 descendant cleared2011: 2 descendants cleared2022: 4 descendants cleared2013: 2 descendants cleared2018: 3 descendants cleared2015: 3 descendants cleared2017: 3 descendants cleared2019: 3 descendants cleared2025: 5 descendants cleared2026: 7 descendants cleared2016: 1 descendant cleared2020: 4 descendants cleared2023: 2 descendants cleared2021: 2 descendants cleared2024: 2 descendants cleared1995200020052010201520202025
  1. This deviceK991790 Ultimax Ankle Fusion Rod SystemEncore Orthopedics, Inc. · 1999
  2. Descendant · cites it directly · 41 of its ownK023115 Ace VersanailDePuy Orthopaedics, Inc. · 2002
  3. Descendant · 2 generations on · 25 of its ownK101934 Dynnail, 12MM, Locking Screw, 4.6 MM, Deployment Frame, Dynnail…Medshape Solutions · 2011
  4. Descendant · 2 generations on · 24 of its ownK113828 Dynanail Ankle Arthrodesis NailMedShape, Inc. · 2012
  5. Descendant · 3 generations on · 22 of its ownK171376 DynaNail TTC Fusion SystemMedShape, Inc. · 2017
  6. Descendant · cites it directly · 18 of its ownK081243 Biomet Phoenix Ankle Nail SystemBiomet Trauma · 2008

Showing 5 of 54 descendants. See all descendants

Descendants cleared per year

2002: 12004: 12005: 12008: 22009: 12011: 22012: 52013: 22015: 32016: 12017: 32018: 32019: 32020: 42021: 22022: 42023: 22024: 22025: 52026: 7
2002high 7 (2026) · low 0 (2003)2026

Most influential descendants

Showing 5 of 54 · See all
  • K023115Ace VersanailDePuy Orthopaedics, Inc. · 2002 · cites it directly41descendants
  • K101934Dynnail, 12MM, Locking Screw, 4.6 MM, Deployment Frame, Dynnail, Models 1200-01-1222…Medshape Solutions · 2011 · 2 generations on25descendants
  • K113828Dynanail Ankle Arthrodesis NailMedShape, Inc. · 2012 · 2 generations on24descendants
  • K171376DynaNail TTC Fusion SystemMedShape, Inc. · 2017 · 3 generations on22descendants
  • K081243Biomet Phoenix Ankle Nail SystemBiomet Trauma · 2008 · cites it directly18descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K991790Ultimax Ankle Fusion Rod SystemEncore Orthopedics, Inc.1999—
+1K023115Ace VersanailDePuy Orthopaedics, Inc.2002—
+2K101934Dynnail, 12MM, Locking Screw, 4.6 MM, Deployment Frame, Dynnail, Models…Medshape Solutions2011—
+2K113828Dynanail Ankle Arthrodesis NailMedShape, Inc.2012—
+3K171376DynaNail TTC Fusion SystemMedShape, Inc.2017—
+1K081243Biomet Phoenix Ankle Nail SystemBiomet Trauma2008—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200210
200410
200510
200820
200910
201120
201250
201320
201530
201610
201730
201830
201930
202040
202120
202240
202320
202420
202550
202670
FIG. 1 — Lineage of K991790, 1999–2026Source: 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 HSB? 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 HSB device

  1. #1 K200869 Gamma3 Systemscore 19.8 · 8 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against?

The FDA summary names no predicate by number.

What descends from it? (54)

See all 54

3 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K023115Ace VersanailDePuy Orthopaedics, Inc.200241
K081243Biomet Phoenix Ankle Nail SystemBiomet Trauma200818
K043052Trigen Hindfoot Fusion NailSmith & Nephew, Inc.200413

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, K023115 (DePuy Orthopaedics, Inc., 2002) has gone furthest, with 41 descendants of its own.

How does its category compare?

All HSB devices

HSB Rod, Fixation, Intramedullary And Accessories: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · HSB

15in 2025

2007: 82008: 112009: 182010: 142011: 162012: 172013: 182014: 192015: 222016: 82017: 232018: 172019: 132020: 172021: 102022: 122023: 112024: 132025: 152026 (partial year): 18
2007high 23 (2017) · low 8 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · HSB

106in 2025

2007: 68 days median2008: 57 days median2009: 86 days median2010: 117 days median2011: 78 days median2012: 112 days median2013: 105 days median2014: 147 days median2015: 111 days median2016: 124 days median2017: 119 days median2018: 134 days median2019: 132 days median2020: 112 days median2021: 94 days median2022: 172 days median2023: 162 days median2024: 195 days median2025: 106 days median2026 (partial year): 151 days median
2007high 195 (2024) · low 57 (2008)2026

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

Recalls per year · HSB

18in 2025

2008: 92009: 812010: 182011: 22012: 72013: 142014: 32015: 32016: 62017: 662018: 562019: 62020: 62021: 22022: 12023: 12024: 12025: 182026 (partial year): 1
2007high 81 (2009) · low 0 (2007)2026

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

Adverse event reports per year · HSB

2,911in 2025

2007: 1622008: 1842009: 3342010: 4542011: 6622012: 1,0792013: 1,7732014: 1,4742015: 1,6712016: 1,9202017: 1,4472018: 3,5262019: 2,5172020: 3,2992021: 4,1112022: 2,7332023: 2,2192024: 2,8692025: 2,911
2007high 4,111 (2021) · low 162 (2007)2025

MAUDE reports naming product code HSB, 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
20078680162
200811579184
2009188681334
20101411718454
201116782662
20121711271,079
201318105141,773
20141914731,474
20152211131,671
2016812461,920
201723119661,447
201817134563,526
20191313262,517
20201711263,299
2021109424,111
20221217212,733
20231116212,219
20241319512,869
202515106182,911
2026181511—

What is it indicated for?

The UltiMax Ankle Fusion Rod System is indicated for single use for arthrodesis of the ankle joint.

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. “K991790: Ultimax Ankle Fusion Rod System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K991790

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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