# K171595: M.U.S.T. Sacral Iliac Screw and Pelvic Trauma System

- Pathway: 510(k) (Traditional)
- Applicant: Medacta International S.A.
- Decided: Aug 2, 2017 after 63 days
- Product code: OUR (Sacroiliac Joint Fixation)
- Device class: 2
- Regulation: 21 CFR 888.3040
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 6 generations back to K903810 (1990). 12 ancestors in all.
35 later devices descend from it; 5 cite it directly.
0 of 48 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K021932: Synthes 6.5 MM Cannulated Screw, Synthes (Usa) (2002) Summary page 4.
- K962011: Synthes 7.0/7.3 MM Cannulated Screws, Synthes (Usa) (1996) Summary page 4.
- K000080: Asnis Iii Cannulated Screw System, Howmedica Osteonics Corp. (2000) Summary page 4.
- K024060: Modification to Asnis Iii Cannulated Screw System, Howmedica Osteonics Corp. (2002) Summary page 4.
- K112028: SI-Lok Sacroiliac Joint Fixation System, Globus Medical, Inc. (2011) Summary page 4.
- K130092: Simmetry Sacroiliac Joint Fusion System, Zyga Technology, Inc. (2013) Summary page 4.

## Most influential descendants
- K193083: M.U.S.T. Sacral Illiac Screw and Pelvic Trauma System (2019), 21 descendants of its own
- K203247: iFuse-TORQ™ Implant System (2021), 17 descendants of its own
- K213667: iFuse-TORQ® Implant System (2022), 15 descendants of its own
- K222605: iFuse TORQ® Implant System (2022), 14 descendants of its own
- K190025: EVOL® -SI Joint Fusion System (2019), 6 descendants of its own

## Indications for use
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.

Source page: https://510kreport.com/device/K171595
Methodology: https://510kreport.com/methodology