510(k) · Cleared
ClearedAOS ES Retrograde Femoral Nail
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Advanced Orthopaedic Solutions, Inc. · HSB Rod, Fixation, Intramedullary And Accessories
Cleared on Jul 18, 2019 as substantially equivalent to K132005 (Advanced Orthopaedic Solutions, Inc., 2013) and 1 other predicate after a 31-day review. Its family tree reaches back 5 generations to 1997.
- Decided
- Jul 18, 2019
- Review
- 31 days
- Class
- Class II
- Product code
- HSB
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 5 generations to K970097 (1997). 21 ancestors in all, the oldest K871539 (1987). No later device cites it as a predicate yet.
- Root · 5 generations backK970097 Proximal Femoral Nail (PFN) SystemSynthes (Usa) · 1997
- 4 generations backK973240 Synthes Proximal Femoral Nail (PFN) System ModificationSynthes (Usa) · 1997
- 3 generations backK013563 Long Trochanteric Nail SystemDePuy Orthopaedics, Inc. · 2001 · Recalled
- 2 generations backK021008 Advanced Orthopaedic Solutions Trochanteric NailAdvanced Orthopaedic Solutions, Inc. · 2002 · Recalled
- 1 generation backK103533 ES Trochanteric Nail, Left and Right, 10MMAdvanced Orthopaedic Solutions, Inc. · 2011
- This deviceK191598 AOS ES Retrograde Femoral NailAdvanced Orthopaedic Solutions, Inc. · 2019
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K970097 | Proximal Femoral Nail (PFN) System | Synthes (Usa) | 1997 | — |
| −4 | K973240 | Synthes Proximal Femoral Nail (PFN) System Modification | Synthes (Usa) | 1997 | — |
| −3 | K013563 | Long Trochanteric Nail System | DePuy Orthopaedics, Inc. | 2001 | 54 |
| −2 | K021008 | Advanced Orthopaedic Solutions Trochanteric Nail | Advanced Orthopaedic Solutions, Inc. | 2002 | 12 |
| −1 | K103533 | ES Trochanteric Nail, Left and Right, 10MM | Advanced Orthopaedic Solutions, Inc. | 2011 | — |
| 0 (this device) | K191598 | AOS ES Retrograde Femoral Nail | Advanced Orthopaedic Solutions, Inc. | 2019 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1987 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1995 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 0 |
| 2013 | 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 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 K200869 Gamma3 Systemscore 19.8 · 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? (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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K132005 | Retrograde Femoral NailSummary page 4…888.3020 Intramedullary Fixation Rod Device Code HSB Substantially Equivalent Primary: AOS Retrograde Femoral Nail Devices (K132005, Cleared September 10, 2013) Secondary: AOS ES™ Trochanteric Nail (K10… | 2013 |
| * | K103533 | ES Trochanteric Nail, Left and Right, 10MMSummary page 4…Nail Devices (K132005, Cleared September 10, 2013) Secondary: AOS ES™ Trochanteric Nail (K103533, Cleared January 19, 2011)… | 2011 |
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 22 years and passes through 3 companies; a new generation was cleared every 4.1 years on median.
- 7 of the 21 ancestors have a recall of any class.
- 2 other devices also cite its predicate K132005.
How does its category compare?
All HSB devicesHSB Rod, Fixation, Intramedullary And Accessories: FDA decisions, review times, recalls and adverse event reports over 20 years. 2019, this device’s year, is highlighted.
FDA decisions per year · HSB
15in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · HSB
106in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · HSB
18in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · HSB
2,911in 2025
MAUDE reports naming product code HSB, 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 | 8 | 68 | 0 | 162 |
| 2008 | 11 | 57 | 9 | 184 |
| 2009 | 18 | 86 | 81 | 334 |
| 2010 | 14 | 117 | 18 | 454 |
| 2011 | 16 | 78 | 2 | 662 |
| 2012 | 17 | 112 | 7 | 1,079 |
| 2013 | 18 | 105 | 14 | 1,773 |
| 2014 | 19 | 147 | 3 | 1,474 |
| 2015 | 22 | 111 | 3 | 1,671 |
| 2016 | 8 | 124 | 6 | 1,920 |
| 2017 | 23 | 119 | 66 | 1,447 |
| 2018 | 17 | 134 | 56 | 3,526 |
| 2019 | 13 | 132 | 6 | 2,517 |
| 2020 | 17 | 112 | 6 | 3,299 |
| 2021 | 10 | 94 | 2 | 4,111 |
| 2022 | 12 | 172 | 1 | 2,733 |
| 2023 | 11 | 162 | 1 | 2,219 |
| 2024 | 13 | 195 | 1 | 2,869 |
| 2025 | 15 | 106 | 18 | 2,911 |
| 2026 | 18 | 151 | 1 | — |
What is it indicated for?
The AOS ES™ Retrograde Femoral Nail is intended for use in intramedullary fixation of fractures of the femur to include the following: open and closed femoral fractures, pseudoarthrosis and correction osteotomy, pathologic fractures, impending pathologic fractures, and tumor resections, supracondylar fractures, including those with severe comminution and intra- articular extension, ipsilateral femur fractures, bone lengthening, fractures proximal to a total knee arthroplasty or prosthesis, fractures distal to a hip joint, nonunions and malunions, and fractures resulting from osteoporosis.
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/K191598 · printed Nov 6, 2026
Cite this page
510(k) Report. “K191598: AOS ES Retrograde Femoral Nail.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K191598
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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