Is there anything else that would mimic piriformis pain?
The piriformis has an origin on the lower inside surface of the sacrum and a secondary origin on the superior margin of the greater sciatic notch of the innominate bone. When the SIJ goes ‘out’ these two origins are separated and hurt the piriformis. This causes a deep pain from a few inches lower than the PSIS almost straight across to the top of the greater trochanter. Correction of SIJD relieve the stretch on the piriformis. Same with the gluteus maximus. The gluteus maximus. Part of the gluteus maximus originates from the back of the sacrum and part of it originates from the back of the pelvic bone (innominate). When the SIJ goes out the pelvis moves up and out on the sacrum and also separates these origins. This will hurt you on a line from just below the PSIS diagonally downward to the middle part of the greater trochanter. To reverse the separation you must correct the SIJD. If you have been unstable for a long time, you must continually correct the SIJ several times daily. If y
