SI jiont syndrome（subluxation）

Pain in the lower back, often radiating out to the buttocks or back of the thigh, may be a sign of Sacroiliac joint involvement. The pain may increase during movement or weight bearing on the affected side. Sneezing, coughing, rolling over in bed and stooping may increase the pain. Pain may radiate to the groin area, sometimes resembling a groin strain or trauma to the testicles. A feeling that the leg, or hip, is rotated may also accompany this condition.承德医学院附属医院骨科杜志峰

Inflammation in the joint will cause additional pain and inflammation, creating an unpleasant cycle. Numbness and a cold feeling may also accompany this condition. Stiffness in the lower back may be experienced as well. In severe cases, weakness and functional limitations may result, due to the nerve involvement. If a fracture is the cause of the pain a grinding sensation in the joint or a total inability to bear weight may be experienced.