Sacroiliac Joint Dysfunction And Piriformis Syn... -

: Connects the spine to the pelvis and acts as a shock absorber for the upper body.

Sciatica and SI Joint Dysfunction: The Surprising Connection Sacroiliac Joint Dysfunction and Piriformis Syn...

The piriformis is a small, pyramidal muscle that originates on the front of the sacrum and attaches to the top of the thigh bone (femur). Because it bridges the SI joint, its tension level directly affects joint stability: : Connects the spine to the pelvis and