510(k) · Cleared
ClearedM.U.S.T. Sacral Iliac Screw and Pelvic Trauma System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Medacta International S.A. · OUR Sacroiliac Joint Fixation
Cleared on Jan 13, 2021 as substantially equivalent to K193083 (Medacta International S.A., 2019) after a 28-day review. Its family tree reaches back 8 generations to 1990. 2 later devices descend from it.
- Decided
- Jan 13, 2021
- Review
- 28 days
- Class
- Class II
- Product code
- OUR
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 8 generations to K903810 (1990). 14 ancestors in all. 2 later devices descend from it, 1 citing it directly.
- Root · 8 generations backK903810 Ace Cannulated Self Tapping Cancellous Bone ScrewAce Medical Co. · 1990
- 7 generations backK051296 Sijf Cannulated Screw SystemDepuy Spine, Inc. · 2005
- 6 generations backK102907 Simmetry Sacroiliac Joint Fusion SystemZyga Technology, Inc. · 2010
- 5 generations backK110512 Simmetry Sacroiliac Joint Fusion SystemZyga Technology, Inc. · 2011
- 4 generations backK111801 Simmetry (TM) Sacroiliac Joint Fusion SystemZyga Technology, Inc. · 2011
- 3 generations backK112028 SI-Lok Sacroiliac Joint Fixation SystemGlobus Medical, Inc. · 2011
- 2 generations backK171595 M.U.S.T. Sacral Iliac Screw and Pelvic Trauma SystemMedacta International S.A. · 2017
- 1 generation backK193083 M.U.S.T. Sacral Illiac Screw and Pelvic Trauma SystemMedacta International S.A. · 2019
- This deviceK203671 M.U.S.T. Sacral Iliac Screw and Pelvic Trauma SystemMedacta International S.A. · 2021
- Descendant · cites it directly · 1 of its ownK232211 REUNION Sacroiliac Joint Fusion SystemAstura Medical · 2023
- Descendant · 2 generations on · 0 of its ownK252346 OLYMPIC Posterior Spinal Fixation System; MASADA Modular Spinal…Astura Medical · 2025
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 |
|---|---|---|---|---|---|
| −8 | K903810 | Ace Cannulated Self Tapping Cancellous Bone Screw | Ace Medical Co. | 1990 | — |
| −7 | K051296 | Sijf Cannulated Screw System | Depuy Spine, Inc. | 2005 | — |
| −6 | K102907 | Simmetry Sacroiliac Joint Fusion System | Zyga Technology, Inc. | 2010 | — |
| −5 | K110512 | Simmetry Sacroiliac Joint Fusion System | Zyga Technology, Inc. | 2011 | — |
| −4 | K111801 | Simmetry (TM) Sacroiliac Joint Fusion System | Zyga Technology, Inc. | 2011 | — |
| −3 | K112028 | SI-Lok Sacroiliac Joint Fixation System | Globus Medical, Inc. | 2011 | — |
| −2 | K171595 | M.U.S.T. Sacral Iliac Screw and Pelvic Trauma System | Medacta International S.A. | 2017 | — |
| −1 | K193083 | M.U.S.T. Sacral Illiac Screw and Pelvic Trauma System | Medacta International S.A. | 2019 | — |
| 0 (this device) | K203671 | M.U.S.T. Sacral Iliac Screw and Pelvic Trauma System | Medacta International S.A. | 2021 | — |
| +1 | K232211 | REUNION Sacroiliac Joint Fusion System | Astura Medical | 2023 | — |
| +2 | K252346 | OLYMPIC Posterior Spinal Fixation System; MASADA Modular Spinal Fixation System | Astura Medical | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1996 | 1 | 0 |
| 2000 | 1 | 0 |
| 2002 | 2 | 0 |
| 2009 | 1 | 0 |
| 2013 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2023 | 1 | 0 |
| 2025 | 1 | 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 OUR? 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 OUR device
- #1 K233508 iFuse Bedrock Granite® Implant Systemscore 30.7 · 31 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 |
|---|---|---|---|
| * | K193083 | M.U.S.T. Sacral Illiac Screw and Pelvic Trauma SystemSummary page 5…Predicate Device Substantial equivalence is claimed to the following device: Primary Predicate Device: M.U.S.T. Sacral Iliac Screw and Pelvic Trauma System, K193083, Medacta International SA Reference Predicate Device M.U.S.T. Sacral Iliac Screw and Pelvic Trauma System… | 2019 |
| † | K171595 | M.U.S.T. Sacral Iliac Screw and Pelvic Trauma System | 2017 |
What descends from it? (2)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K232211 | REUNION Sacroiliac Joint Fusion System | 2023 | 1 |
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 31 years and passes through 5 companies; a new generation was cleared every 2.3 years on median.
- 2 of the 14 ancestors have a recall of any class.
- Of its descendants, K232211 (Astura Medical, 2023) has gone furthest, with 1 descendant of its own.
- 1 other device also cites its predicate K193083.
How does its category compare?
All OUR devicesOUR Sacroiliac Joint Fixation: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.
FDA decisions per year · OUR
14in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · OUR
97in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · OUR
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · OUR
10in 2025
MAUDE reports naming product code OUR, 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 | 0 | — | 0 | 0 |
| 2008 | 1 | — | 0 | 0 |
| 2009 | 1 | — | 0 | 0 |
| 2010 | 1 | — | 0 | 0 |
| 2011 | 3 | 27 | 0 | 6 |
| 2012 | 2 | — | 0 | 81 |
| 2013 | 4 | 103 | 0 | 96 |
| 2014 | 3 | 91 | 0 | 146 |
| 2015 | 8 | 111 | 0 | 119 |
| 2016 | 6 | 168 | 0 | 122 |
| 2017 | 4 | 120 | 0 | 157 |
| 2018 | 7 | 82 | 0 | 137 |
| 2019 | 7 | 89 | 0 | 175 |
| 2020 | 7 | 88 | 0 | 148 |
| 2021 | 9 | 85 | 0 | 154 |
| 2022 | 14 | 149 | 0 | 23 |
| 2023 | 20 | 55 | 0 | 7 |
| 2024 | 15 | 74 | 0 | 15 |
| 2025 | 14 | 97 | 1 | 10 |
| 2026 | 6 | 98 | 1 | — |
What is it indicated for?
The M.U.S.T. Sacral Iliac Screw and Pelvic Trauma System is intended for use in skeletally mature patients for fracture fixation of small and long bones of the pelvis, and for sacroiliac joint fusion for patients suffering from sacroiliac joint disruptions and degenerative sacroiliitis.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K203671 · printed Nov 6, 2026
Cite this page
510(k) Report. “K203671: M.U.S.T. Sacral Iliac Screw and Pelvic Trauma System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K203671
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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