The Sacroiliac joint (SI joint) located in the pelvis links the ileum to the sacrum. This joint is an essential component for shock absorption and energy transfer during walking and other activities. About 25% of the lower back pains originate in the SI joint. When non-surgical therapy fails, minimally invasive SI joint fusion is an option to consider. It is intended for sacroiliac joint dysfunction that is a direct result of sacroiliac joint disruption and degenerative sacroiliitis. The animation in the video depicts the step-by-step details of the procedure. The patient lies in a prone position, under constant X-ray-based imaging called fluoroscopy. It is a minimally invasive procedure minimizing trauma to the surrounding bone and soft tissue. The surgeon uses a specially designed system to guide the instruments to prepare the bone and insert the implants. The entire procedure is carried out through a 3cm incision along the side of the buttock.