510(k) Report

510(k) · Cleared

Cleared

Surfix Knee Osteotomy System

K041601510(k) TraditionalCleared Aug 27, 200474-day reviewClass II21 CFR 888.3030

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

Surfix Technologies · HRS Plate, Fixation, Bone

Cleared on Aug 27, 2004 as substantially equivalent to K023941 (Synthes (Usa), 2003) and 1 other predicate after a 74-day review. Its family tree reaches back 1 generation to 2002. 5 later devices descend from it.

Decided
Aug 27, 2004
Review
74 days
Class
Class II
Product code
HRS
Recalls
None
Predicates
2

Its longest line of descent runs back 1 generation to K014155 (2002). 2 ancestors in all. 5 later devices descend from it, 3 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2003: 1 other ancestor2015: 1 descendant cleared2024: 1 descendant cleared2022: 1 descendant cleared2018: 1 descendant cleared2021: 1 descendant clearedK014155 · Opening/Closing Wedge Ostetomy Plates · Arthrex, Inc. · 2002200020052010201520202025
Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor 1 generation forward: 3 descendants2 generations forward: 2 descendants K014155 · Opening/Closing Wedge Ostetomy Plates · Arthrex, Inc. · 20020
  1. Root · 1 generation backK014155 Opening/Closing Wedge Ostetomy PlatesArthrex, Inc. · 2002
  2. This deviceK041601 Surfix Knee Osteotomy SystemSurfix Technologies · 2004
  3. Descendant · cites it directly · 3 of its ownK141548 High Tibial Osteotomy SystemNewclip Technics · 2015
  4. Descendant · 2 generations on · 1 of its ownK173746 Activmotion RangeNewclip Technics · 2018
  5. Descendant · cites it directly · 0 of its ownK241539 Activmotion SNewclip Technics · 2024
  6. Descendant · cites it directly · 0 of its ownK212545 FlexitSystem Knee osteotomy systemNeosteo · 2022
  7. Descendant · 2 generations on · 0 of its ownK213214 Xpert WristNewclip Technics · 2021

Most influential descendants

Showing 5 of 5 · See all
  • K141548High Tibial Osteotomy SystemNewclip Technics · 2015 · cites it directly3descendants
  • K173746Activmotion RangeNewclip Technics · 2018 · 2 generations on1descendant
  • K241539Activmotion SNewclip Technics · 2024 · cites it directly0descendants
  • K212545FlexitSystem Knee osteotomy systemNeosteo · 2022 · cites it directly0descendants
  • K213214Xpert WristNewclip Technics · 2021 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K014155Opening/Closing Wedge Ostetomy PlatesArthrex, Inc.2002—
0 (this device)K041601Surfix Knee Osteotomy SystemSurfix Technologies2004—
+1K141548High Tibial Osteotomy SystemNewclip Technics2015—
+2K173746Activmotion RangeNewclip Technics2018—
+1K241539Activmotion SNewclip Technics2024—
+1K212545FlexitSystem Knee osteotomy systemNeosteo2022—
+2K213214Xpert WristNewclip Technics2021—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200310

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201510
201810
202110
202210
202410
FIG. 1 — Lineage of K041601, 2002–2024Source: 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 HRS? 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 HRS device

  1. #1 K222465 Tyber Medical Anatomical Plating Systemscore 27.5 · 16 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
*K023941Synthes Tomofix Osteotomy System
Summary page 2
…FIX® Knee Osteotomy System is substantially equivalent to the Synthes TomoFixTM Osteotomy System (K023941) and the Arthrex Modified Osteotomy System (KO14155). COMPARISON OF The…
Synthes (Usa)20031
*K014155Opening/Closing Wedge Ostetomy PlatesArthrex, Inc.2002—

Also cleared against K023941: 8 other devices →

What descends from it? (5)

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

NumberDeviceApplicantDecidedDescendants
K141548High Tibial Osteotomy SystemNewclip Technics20153
K241539Activmotion SNewclip Technics20240
K212545FlexitSystem Knee osteotomy systemNeosteo20220

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?

  • 1 of the 2 ancestors has a recall of any class.
  • Of its descendants, K141548 (Newclip Technics, 2015) has gone furthest, with 3 descendants of its own.
  • 8 other devices also cite its predicate K023941.

How does its category compare?

All HRS devices

HRS Plate, Fixation, Bone: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · HRS

54in 2025

2007: 352008: 352009: 472010: 492011: 432012: 592013: 562014: 762015: 562016: 442017: 572018: 402019: 462020: 482021: 402022: 472023: 402024: 542025: 542026 (partial year): 51
2007high 76 (2014) · low 35 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · HRS

90in 2025

2007: 63 days median2008: 87 days median2009: 85 days median2010: 100 days median2011: 88 days median2012: 106 days median2013: 89 days median2014: 57 days median2015: 97 days median2016: 109 days median2017: 122 days median2018: 116 days median2019: 89 days median2020: 88 days median2021: 87 days median2022: 144 days median2023: 120 days median2024: 96 days median2025: 90 days median2026 (partial year): 82 days median
2007high 144 (2022) · low 57 (2014)2026

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

Recalls per year · HRS

1in 2025

2007: 22008: 112009: 32010: 162011: 52012: 42013: 112015: 72016: 52017: 32018: 22019: 252020: 12021: 92022: 32023: 12025: 12026 (partial year): 3
2007high 25 (2019) · low 0 (2014)2026

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

Adverse event reports per year · HRS

2,306in 2025

2007: 3392008: 3112009: 4352010: 4912011: 7732012: 1,6632013: 2,6432014: 2,4132015: 3,0952016: 2,2762017: 2,2202018: 2,6632019: 3,3592020: 2,7902021: 2,4422022: 1,7002023: 2,0492024: 1,8492025: 2,306
2007high 3,359 (2019) · low 311 (2008)2025

MAUDE reports naming product code HRS, 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
200735632339
2008358711311
200947853435
20104910016491
201143885773
20125910641,663
20135689112,643
2014765702,413
2015569773,095
20164410952,276
20175712232,220
20184011622,663
20194689253,359
2020488812,790
2021408792,442
20224714431,700
20234012012,049
2024549601,849
2025549012,306
202651823—

What is it indicated for?

The SURFIX® Knee Osteotomy System is indicated for knee osteotomies including high tibial osteotomy and femoral osteotomy in the cases of osteoarthritis of the medial tibiofemoral compartment with genu varum and lateral gonarthrosis on genu valgum. Examples Include:

* Fixation of opening wedge high tibial osteotomy,

* Fixation of fracture of the medial tibial plateau,

* Osteoarthritis of the medial tibiofemoral compartment with genu varum,

* Fixation of closing wedge high tibial osteotomy,

* Fixation of fracture of the lateral tibial plateau,

* Distal femoral varus osteotomy,

* Lateral gonarthrosis on genu valgum.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K041601: Surfix Knee Osteotomy System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K041601

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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