Implant-Bone Interface of Sacroiliac Joint Fusion Using iFuse Implant System

Figure 3

Low tracer uptake around the implant after arthrodesis of the left SI joint ((a) SPECT/CT axial, (b) SPECT/CT sagittal). Ten months after the first operation and four months after additional SI joint fusion on the right side, no more elevated tracer uptake could be visualized along the left SI joint, while low tracer uptake is seen along the more recent implant in the right SI joint ((c) SPECT/CT axial, (d) SPECT/CT sagittal).