Excess upper abdominal fat may occur from years of poor diet, lack of exercise and stress. Age and genetic factors also play a role in where your body accumulates belly fat.
Description/Scope. This document addresses proposed indications for sacroiliac joint fusion, a surgical procedure which fuses the iliac bone (pelvis) to the spine (sacrum). It is performed for a variety of orthopedic conditions including trauma (with fracture), infection, cancer, and spinal instability.escription/Scope. This document addresses proposed indications for sacroiliac joint fusion, a surgical procedure which fuses the iliac bone (pelvis) to the spine (sacrum). It is performed for a variety of orthopedic conditions including trauma (with fracture), infection, cancer, and spinal instability.
Sacroiliac joint pain - aftercare. The sacroiliac joint (SIJ) is a term used to describe the place where the sacrum and the iliac bones join. 1  The sacrum is located at the base of your spine. It is made up of 5 vertebrae, or backbones, that are fused together.  The iliac bones are the two large bones that make up your pelvis.