iliosacral joint

is the back pain, which is often described as deep lumbar and usually occurs on one side. Pain intensification after prolonged sitting and improvement of symptoms with exercise and heat applications are common.Often there is radiation of pain to the buttock area, groin and lumbar region. Also, a combination with insensations such as tingling and formication is observed. Knee pain should also make the physician think of the differential diagnostic possibility of an ISG block