4 doctors weighed in:

Can inflammation around the si joint cause sciatica pain? Or muscle spasms of piriformis muscle?

4 doctors weighed in
Dr. Qamar Khan
Pain Management
2 doctors agree

In brief: Yes/No

Rare that the SI joint can cause true sciatica, however it can cause a referred pattern of pain that is known to radiate down the back of the leg up to about the calf.
Traditionally SI Joint pain most often causes tenderness and pain in the buttock area. Piriformis muscle may cause sciatica, but that is also not common. Suggest seeing a spine specialist to determine which is occurring.

In brief: Yes/No

Rare that the SI joint can cause true sciatica, however it can cause a referred pattern of pain that is known to radiate down the back of the leg up to about the calf.
Traditionally SI Joint pain most often causes tenderness and pain in the buttock area. Piriformis muscle may cause sciatica, but that is also not common. Suggest seeing a spine specialist to determine which is occurring.
Dr. Qamar Khan
Dr. Qamar Khan
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Dr. Randolph Rosarion
Physical & Rehabilitation Medicine

In brief: Symptoms can be

similar but the pathology or cause is different.
True SI joint pain does not actually compress the sciatic nerve but can irritate it. It causes pain at the lower back and back of thigh. Piriformis syndrome can irritate and compress the sciatic nerve and the pain and paresthesias (numbness and tingling) it causes runs the course of the sciatic nerve, buttocks to the thigh and down the leg.

In brief: Symptoms can be

similar but the pathology or cause is different.
True SI joint pain does not actually compress the sciatic nerve but can irritate it. It causes pain at the lower back and back of thigh. Piriformis syndrome can irritate and compress the sciatic nerve and the pain and paresthesias (numbness and tingling) it causes runs the course of the sciatic nerve, buttocks to the thigh and down the leg.
Dr. Randolph Rosarion
Dr. Randolph Rosarion
Thank
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