SI joints generate significant amount of lateral thigh and inguinal area pains. About 1/3 will complain of lateral thigh numbness as well.
Clin Neurol Neurosurg. 157, June 2017, 55–58
Leg symptoms associated with sacroiliac joint disorder and related pain.
Murakami E et al
- 100 cases diagnosed by periarticular injection (I know – not reliable)
Had in interesting perspective of SI joint: – upper ligamentous and lower a joint:
- 94% pain at or around the posterior-superior iliac spine (PSIS).
- 64% pain
- 52% sensation tingling or numbness
Leg Pain areas:
- 36% posterolateral thigh
- 28% posteromedial thigh
- 23% from the hypogastric to inguinal area (groin pain)
- 6% at the ischial tuberosity in 6 patients (6%)
- 3% lateral ankle pain.
numbness leg areas:
- 30% posterolateral thigh
- 12% back of the calf
- 10% anterolateral thigh
- no numbness gluteal nor groin