iFuse TORQ TNT®
Pelvic Bone Density-Driven Design
The first 3D-printed, porous, threaded implant with lengths capable of spanning the posterior pelvis, passing through the ipsilateral ilium, sacrum, and through the contralateral ilium (through and through, "TNT").
Features
- Pelvis-Specific 8.7 mm Diameter Fits 95% of S1 corridors suitable for a 7.3 mm transsacral screw2. 150% stronger in bending vs 7.3 mm stainless steel screw3, 4
- FuSlon 3D™ Surface 3D Printed Porous Lattice Designed for osseointegration3
- TORQLock™ Threads Hooked Profile Designed to reduce toggle
- FDA Breakthrough Device Designation The FDA determined iFuse TORQ TNT has the potential to provide more effective fixation of pelvic fragility fractures than the current standard of care, cannulated screws.
Designed to reduce loosening through pelvis-specific fixation. Variable thread heights and leads tailored to the posterior pelvis.
Video
Case Studies
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Brian Cunningham MD “Pelvic insufficiency fractures will be one of the great challenges for our generation. Traditional thinking, care pathways, and surgical technology will not be the solution. We need innovation in how we diagnose and treat these injuries, and we need innovative technology in the operating room designed specifically for these patients.”
Case: Sacral Fracture with Bilateral SI Joint Involvement Following Low-Energy Ground-Level Falls
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Brian Cunningham MD “Pelvic insufficiency fractures will be one of the great challenges for our generation. Traditional thinking, care pathways, and surgical technology will not be the solution. We need innovation in how we diagnose and treat these injuries, and we need innovative technology in the operating room designed specifically for these patients.”
Case: Sacral Insufficiency Fracture with Bilateral SI Joint Involvement
News
Latest News on iFuse TORQ TNT®
Partnership Agreement with Smith+Nephew
SI-BONE entered into a strategic partnership with Smith+Nephew in February 2026 to distribute iFuse TORQ and iFuse TORQ TNT across Level 1 and Level 2 trauma centers nationwide for pelvic trauma.
iFuse TORQ TNT® Now Qualifies for NTAP
The iFuse TORQ TNT® Implant System is currently eligible for CMS New Technology Add‑On Payment (NTAP), allowing hospitals to receive up to $4,136 in additional inpatient reimbursement when treating pelvic fragility fractures with this innovative, 3D‑printed implant.
Professional Training
Since 2009, SI-BONE has trained thousands of healthcare providers worldwide on the iFuse Implant System®. SI University® offers a broad curriculum of educational programs on the diagnosis and treatment of SI joint disorders.
Whether you’d like a technique refresher, practice on a dysmorphic sacrum, or an initial training experience, the SI-BONE SImulatorTM provides a realistic learning experience with no radiation.
1Bone density mapping based on Thiesen DM, et al. The three-dimensional bone mass distribution of the posterior pelvic ring and its key role in transsacral screw placement. Sci Rep. 2020 Mar 30;10(1):5690.
2Gardner MJ, et al. Quantification of the upper and second sacral segment safe zones in normal and dysmorphic sacra. J Orthop Trauma. 2010 Oct;24(10):622-9. —Data analyzed for S1 dimensions
3SI-BONE Technical Study 301122-TS-A. Fatigue Testing of 7.3mm Fully Threaded Cannulated Screw. (Mechanical data, including computational modeling, is not necessarily indicative of human clinical outcomes.)
4SI-BONE Test Report 301321-R-A. Static and Dynamic Cantilever (ASTM F2193) Testing of the iFuse TORQ TNT Implants. (Mechanical data, including computational modeling, is not necessarily indicative of human clinical outcomes.
5SI-BONE Technical Study 301067-TS-A. iFuse Implant Osseointegration Claim Technical Study.
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Healthcare professionals should refer to the Instructions For Use for indications, contraindications, warnings, and precautions at https://si-bone.com/label.
There are potential risks associated with iFuse procedures. They may not be appropriate for all patients and all patients may not benefit.
For information about the risks, visit https://si-bone.com/risks.