Injections into sacroiliac joints

​The sacroiliac joints connect the iliac bones (os ilium, plural os ilii) of the pelvis to the sacrum (os sacrum) of the spine.
In the sacroiliac joints pain and functional disorders often occur.
By intra-articular (into the joint) injection of a local anaesthetic and a water-soluble corticoid, the pain receptors in the joint and joint capsule of the sacroiliac joint are temporarily blocked.
This leads to a reduction of pain in the sacroiliac joint and an improvement of the movement function.
The intra-articular injection of the sacroiliac joint (blue cannula in the illustration) is performed in prone position under C-arm control and application of a contrast medium.