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What does SI stand for?

SI stands for Sacroiliac Joint

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We have 92 other meanings of SI in our Acronym Attic

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received original clearance in November 2008 from the Food and Drug Administration (FDA) to market its iFuse Implant System for fracture fixation of long bones and large bone fragments of the pelvis for conditions including sacroiliac joint disruptions and degenerative sacroiliitis, and an additional clearance in April 2011 for sacroiliac joint fusion for conditions including sacroiliac joint disruptions and degenerative sacroiliitis.
SACROILIAC JOINTS The sacroiliac joints are on either side of your tail bone or sacrum, joining it, on each side, to the ilium bone, the largest bones that form the outer walls of the pelvis.
The iFuse is indicated for use in fracture fixation of large bones and large bone fragments of the pelvis for conditions including sacroiliac joint disruptions and degenerative sacroiliitis.
IMAGING FINDINGS An AP radiograph of the pelvis demonstrated subtle erosive changes of the left sacroiliac joint with a large soft mass in the left gluteal soft tissues (Figure 1).