The Integrity-SI Fusion System
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Anatomically Designed Fastener for Long-Term Fixation, Stability​, & Fusion
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MIS Bone Preservation Interface Technology
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Load-sharing Bone Volume Engagement
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Multi-Axial Off-Axis Load Resistance
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Optimized Fastener With Fenestrated Fusion Zone
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Variable Angle Compression Washer
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8mm, 10mm, 12mm Diameter Primary Implant Options
The Only SIJ Fusion System Enhanced by UnifiMI Interface Technology
IMPLANT TECHNOLOGY
Variable Angle Compression Washer
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Variable Angle Compression Washer
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+/-18° variable angle
Fusion Zone
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4 lateral fenestrations - graft packing and thru-growth
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Non-threaded for compression-lag for long-term fixation
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Length based on pre-operative CT data
Surface Finish
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Grit blasted for on-growth
Insertion
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Polished distal tip - allows for effective insertion and bone preservation
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Cannulated, self-tapping
BIO-MECHANICAL FASTENER (OPTIONAL)
Our system is indicated for use with or without this option which provides a second point of fixation through the same incision for additional anti-rotational stability, if desired.
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Cannulated, self-tapping, fully threaded
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Provides Rotational stability
Bio-mechanical fastener may only be used in conjunction with a primary 8mm, 10mm & 12mm implant
PERFORMANCE
The combination of joint decortication, graft placement, and stable rigid fixation with threaded implants has been shown to promote successful radiographic fusion of the SIJ.
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Rigid Fixation. Lasting Stability. Radiographic Fusion.
UNIFIMI INTERFACE TECHNOLOGY OVERVIEW
MIS Bone Preservation Tapping Technology & Instant Interlocking Thread-form
Thread Profile
Integrated Substrate
UnifiMI Interface Technology is designed to preserve the native architecture of bone during implantation with the intent of significantly improving a patient's path to recovery.
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Bone preparation during implant insertion allows for enhance stability and immediate loading
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UnifiMI Interface Technology allows the implant to anchor into and integrate with the body of S1
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Best in class compression
ANGLE OF APPROACH
Perpendicular approach to the SIJ provides a safe pathway between the foramen, targets the body of S1 found to be the densest region of the sacrum to ensure optimal fixation, and allows for uniform decortication of the SI joint.
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IDEAL TRAJECTORY
HIGHEST BONE DENSITY
(S1) BODY
LOW BONE DENSITY
A majority of systems utilize a lateral approach and attempt to anchor in low density bone.
SACRAL BONE DENSITY VARIATIONS BY REGION
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250
200
150
CT ATTENUATION (HU)
100
50
0
CENTRAL ALA
LATERAL ALA
L1 BODY
S1 BODY
JOINT COMPRESSION & MECHANICAL STABILITY
Designed for True Compression. True Fusion.
The UnifiMI MIS bone preservation interface design allows for optimal circumferential bone volume engagement.
The system utilizes surgical principles based on biomechanical forces to establish an ideal load sharing environment and delivers superior compression to stimulate and encourage bone remodeling and faciliate true arthrodesis.
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An 8mm, 10mm, or 12mm primary implant with a variable angle compressive washer creates compression across the SI joint helping initiate the body’s natural healing process.
Integrity-SI construct creates both initial and long-term stability at the bone interface on both sides of the SI Joint.