Minimally Invasive Sacroiliac Joint Fusion

Minimally invasive sacroiliac joint fusion is performed for sacroiliac joint dysfunction when all other conservative treatments have been exhausted. The procedure is done using at least two, generally three, triangular titanium implants placed through the ilium, or wing bone of the pelvis, across the sacroiliac joint, and into the sacrum. The implants are designed to stabilize and immediately reduce the motion of the joint and facilitate long-term fusion of the ilium to the sacrum.

Dr Lee performs minimally invasive sacroiliac joint fusion for patients who have sacroiliac joint dysfunction that have exhausted conservative treatment options. Sacroiliac joint fusion is performed in an operating room, with general anesthesia. You will be lying face down. The entire procedure is performed through a small incision (approximately 2- 3 cm long), along the side of your buttock. Dr Lee uses intraoperative navigation technique to guide the instruments that prepare the bone and to insert the implants. A pin is passed through the ilium across the sacroiliac joint into the sacrum, avoiding the channels where nerves run (neural foramina). A broach is then used to create a pathway through the ilium to the sacrum. An implant is inserted, spanning the sacroiliac joint. Normally, two to three implants are used, depending on your size.

After surgery, patients are required to partial weight bear on the operated side using a frame or crutches as walking assistance for 4 – 6 weeks, before making gradual return to full weight bearing.

Sacroiliac Joint Fusion

Dr Lee has previously published on the incidence of new onset sacroiliac joint pain following lumbar fusion in the Journal of Spinal Surgery. For further information visit here.


The medical conditions and treatments outlined on this website are of a general nature. Information given is not intended as specific medical advice pertaining to any given patient and should be seen as a broad guide only. You must not rely on the information provided on this website as an alternative to medical advice from your doctor or other health care professionals. If you have any specific questions about a medical condition, please consult your health care professional or contact Dr Lee’s rooms for a consultation and advice.