# K111801: Simmetry (TM) Sacroiliac Joint Fusion System

- Pathway: 510(k) (Traditional)
- Applicant: Zyga Technology, Inc.
- Decided: Jul 21, 2011 after 24 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: 4 generations back to K903810 (1990). 8 ancestors in all.
240 later devices descend from it; 3 cite it directly.
1 of 249 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K110512: Simmetry Sacroiliac Joint Fusion System, Zyga Technology, Inc. (2011) Summary page 2.

## Most influential descendants
- K112028: SI-Lok Sacroiliac Joint Fixation System (2011), 238 descendants of its own
- K110472: SI-Fix Sacroiliac Joint Fusion System (2012), 92 descendants of its own
- K130092: Simmetry Sacroiliac Joint Fusion System (2013), 85 descendants of its own
- K152681: iFuse Implant System (R) (2016), 84 descendants of its own
- K160652: iFUSE Implant System (2016), 83 descendants of its own

## Indications for use
The Slmmetry TM Sacroiliac Joint Fusion System is intended for sacroiliac joint fusion for conditions including sacroiliac joint disruptions and degenerative sacroiliitis.

Source page: https://510kreport.com/device/K111801
Methodology: https://510kreport.com/methodology