SImmetry® SI Joint Fusion System
IS it SI?®
The SImmetry system is a minimally invasive SI joint fusion system that uses proven orthopedic principles, including joint decortication, bone grafting and fixation, to achieve true arthrodesis.
Symptoms of SI joint dysfunction include:
- Pain in your buttock
Pain on one or both sides of your lower back that may extend into the thigh or groin.
- Difficulty sitting or lying on the painful side
These positions can stress the SI joint, which may cause pain and make simple actions like turning over in bed difficult.
- Pain performing daily activities
Climbing stairs, kneeling or other activities that cause your pelvis to twist can cause pain.
If you have some of these symptoms, your doctor can perform simple tests to determine whether your pain is caused by an SI joint problem.
Because of its pivotal location, a damaged SI joint can make the simplest activities painful.
- Lumbar spine
- Sacroiliac Joint
- Pain in your buttock
Minimally invasive surgery using the SImmetry system typically takes less than one hour to perform, has fewer postoperative complications than open SI joint fusion surgery and involves:
- < 50cc estimated blood loss1
- A small incision—typically only a couple centimeters—on one side of the buttock2
- Brief hospital stay3
- Potential for short weight-bearing recovery period based on sacroiliac joint fusion postoperative guidelines4
- True SI joint arthrodesis5
The SImmetry system affords an efficient and effective minimally invasive technique to effect a true arthrodesis of the sacroiliac joint as follows:
- Minimally invasive lateral access for safety and control
- Joint preparation with the proprietary SImmetry Decorticator® instrument removes cartilage and decorticates opposing joint surfaces
- Bone graft delivery to the prepared joint to facilitate fusion
- Joint fixation with threaded titanium implants
1 Araghi A, et. al. Pain and opioid use outcomes following minimally invasive sacroiliac joint fusion with decortication and bone grafting: The Evolusion Clinical Trial. The Open Orthopaedics Journal, 2017, 11, 1440-1448
2 Miller L, et. al. Minimally invasive arthrodesis for chronic sacroiliac joint dysfunction using the SImmetry SI Joint Fusion system: Dove Press. Medical Devices: Evidence and Research, May 7, 2014
3 Kube R, et. al. Sacroiliac joint fusion: One year clinical and radiographic results following minimally invasive sacroiliac joint fusion surgery: The Open Orthopaedics Journal, 2016, 10, 679-689
4 Dall, B. Post-operative guidelines for sacroiliac joint fusion. Published White Paper
5 Cross W, et. al. Evaluation of fusion after minimally invasive sacroiliac joint fusion surgery with decortication: 24-month results. International Society for the Advancement of Spine Surgery. Annual Meeting, April 2017
See product specific surgical technique manual and package insert for complete instructions and labeling limitations.