Richmond Chiropractic Centre

Address:

#5520-8181 Cambie Road
Richmond, BC
V6X 1J8

Phone number:

+1 (604) 270-1007

Email:

info@richmondchiro.com

Consultation hours

Monday, Thursday and Saturday | 9am – 2pm
Tuesday, Wednesday and Friday | 9am – 6pm

Piriformis Syndrome

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The piriformis muscle originates on the sacrum and crosses over at a slightly downward angle to the outside of the hip, attaching to the lateral side of the femur. Its function is to laterally rotate and extend the hip joint. Piriformis syndrome is a condition in which the piriformis muscle irritates the sciatic nerve, causing pain in the buttocks and referred pain down the leg along the path of the sciatic nerve.

How is it caused?
If the leg has been externally rotated for an extended period of time, such as driving long distances, the piriformis muscle can shorten. Continual internal rotation of the femur (result of prolonged pronation and poor foot mechanics) can cause the piriformis muscle to overwork and therefore increase in size. In both instances, when the leg tries to straighten out during activities like walking, the involved muscle compresses the sciatic nerve.

Treatment
Stretching of the piriformis muscle is necessary. Massage is helpful in relieving tightness. Faulty pelvic and foot mechanics need to be addressed. If internal rotation of the femur and prolonged pronation is evident, an orthotic device should be prescribed to prevent over-pronation and control the leg from internally rotating too much and too long.

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