Deformity
Fixation
- Rigid titanium construction and triangular implant geometry provide immediate stabilization.
- Unique design provides interference fit between the implant and the surrounding bone (cortical and cancellous bone).
- 6X greater rotational resistance vs. screw. 4
Fusion
- 3D printed implant trabecular surface enhances osteointegration. 5
- Fenestrated structure allows through growth and accommodates bone graft. 5
- Porous surface self harvests bone during insertion. 5
Foundation
- Immobilization and stabilization of the sacroiliac joint (SIJ) provides a foundation for long constructs that includes spinopelvic fixation.
- 30% reduction in SI joint motion by adding iFuse Bedrock to sacral-alar iliac (S2AI) screws. 3

Watch
iFuse Bedrock™ - Fixation. Fusion. Foundation
Are you building a strong foundation? Learn about the iFuse Bedrock procedure intended to fuse the SI joint in long construct cases.

More Levels. More Stress.
A 2009 paper published in Spine by Ivanov showed fusing the L5-S1 and L4-S1 increased the motion (stress) of the sacroiliac joint by 52% and 168%, respectively.1
Conversely, there is little increase in motion of the lumbar spine (2-4%)2 and little increase in hip stress (5%)3 after fusing the sacroiliac joint.
Bedrock Biomechanics* Barrow Neurological Institute
- iFuse Bedrock stabilized the SI joint as measured by decreased ROM
- S2AI and S2AI with iFuse Bedrock decreased the bending moments on the S1 screw (reduced S1 screw stresses)
- iFuse Bedrock decreased the bending moments on the S2AI screw (reduced S2AI screw stresses)
Watch
Bedrock Technique with iFuse-3D
Dr. Eastlack demonstrates the Bedrock technique using iFuse-3D implants.
References
- Ivanov AA, et al. Spine 2009;34(5):E162-9.
- Lindsey D, et al. Int J Spine Surg. 2015;9:64.
- Joukar A, et al. JOR Spine. 2019;e1067. [Epub 2019 Oct 20].
- A Torsional Rigidity of the iFuse Implant Compared with a SI Joint Screw in a Sawbones Model. SI-BONE Technical Study 300610-TS.
- MacBarb RF, et al. Int J Spine Surg. 2017;11(3):16 [Part 2].
- The Biomechanical Effects of a Novel Posteriorly Placed SI Joint Fusion Device Integrated with Traditional Lumbo-Pelvic Long Construct Instrumentation. SI-BONE Technical Study 300720-TS.
For indications, safety, and risk information about the iFuse Implant System, click here.
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SI Joint and iFuse Implant System Training
SI-BONE offers training on SI joint diagnosis and treatment for healthcare providers. Learn more about SI joint training opportunities.
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