What is Sacroiliac pain?
Two large joints connect the pelvic bones to a big, triangular bone at the lower end of the vertebral spine called the sacrum – one on either side. These are referred to as sacroiliac (si-) joints. Si-joints are tight and strong, with a limited range of motion, and their role is to provide structural support and stability. Si-joints also function as shock absorbers of the pelvis and the lower back, dispersing the forces of the upper body and the impact from walking, running and jumping. Whenever an si-joint “gets stuck”, this may cause pain in the lower back and legs. This condition is also referred to as si-joint dysfunction.