Sacroiliac joint stabilization via integrated transfixing titanium anchor

The term refers to a class of orthopedic implants—such as the Catamaran SI Joint Fusion System, iFuse Implant System, TriCor, CornerLoc—used to mechanically stabilize the sacroiliac joint in patients with sacroiliac joint dysfunction or instability[1][3][5][7]. These devices are typically made from medical-grade titanium and are designed to "transfix" (cross/anchor) the joint, promoting osseointegration and bony fusion. They often consist of hollow or fenestrated implants that allow graft bone packing to stimulate fusion across the SI joint. Placement is done via minimally invasive surgical approaches, using imaging guidance to optimize positioning and minimize risk to surrounding structures. The device's role is entirely mechanical—it is not a pharmacologic or molecular target but a hardware solution for joint stabilization and pain reduction.

Other names

Sacroiliac joint fixation deviceSI joint fusion systemSI joint stabilization implantCatamaran SI Joint Fusion SystemiFuse Implant SystemTriCor SI Joint Fusion SystemCornerLoc SI Joint Stabilization System