The SIJ is a complex bichondylar joint with characteristics of both a diarthrosis and a synarthrosis. ![]() Several devices specifically designed for SIJ arthrodesis were developed such as the iFuse™ (SI Bone, San Jose, CA, USA), the RIALTO™ Sacroiliac Joint Fusion System (Medtronic, Memphis, TN, USA) and the SImmetry ® SI Joint Fusion System (Zyga Technology Inc., Minnetonka, MN, USA). 5 Those implants are hollowed to allow their insertion around a guidewire, and the cannula also provides a place to put a bone graft if needed. ![]() Sacroiliac joint fusion used to be an open and invasive procedure, 4 but since the late 2000s, new techniques and implants were introduced enabling a percutaneous minimally invasive surgery (MIS). 1, 3 The aim of this procedure is to minimize the displacements within the sacroiliac joint to allow bone growth and therefore the fusion of the sacrum and ilium. 1, 2 After conservative treatment failure, arthrodesis is the last resort. ![]() Sacroiliac joint (SIJ) is known to be involved in 10 to 30% of chronic low-back pain, with pathologies such as degenerative sacroiliitis or sacroiliac joint disruption.
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