Sacro Iliac Joint Dysfunction
The Sacro Iliac joint can be a common source of back pain. The Sacro Iliac joint is located at the back of the pelvis and several scenarios can produce back pain in this region of the spine, including a traumatic incident, biomechanical mal-alignment, hormonal changes during pregnancy, or inflammatory joint disease.
It is easy to see how trauma can produce this problem; when a person lands on one buttock during a fall, for example. A similar process may occur gradually if there is altered alignment or a discrepancy of length in the legs. This can lead to Sacro Iliac joint dysfunction and pain due to repeated stresses on the Sacro Iliac joint during sporting activities.
Hormonal changes during pregnancy can cause generalised laxity of ligaments that can cause mechanical Sacro Iliac joint dysfunction. The ligaments helping to stabilise the Sacro Iliac joint can become lax and this, together with increased load on the spine due to the pregnancy, can cause altered Sacro Iliac joint mechanics and pain. For this reason, mechanical Sacro Iliac joint dysfunction tends to be more common in women.
Signs & Symptoms
Mechanical Sacro Iliac joint dysfunction typically causes a dull ache that is located at the base of the spine on the affected side(s). The pain may become worse and 'sharp' in nature during activities such as sitting, bending, lifting, standing up from a seated position, or lifting the knee up to the chest during stair climbing. Sometimes the pain can refer to the groin, buttock or the back of the thigh although Sacro Iliac joint pain rarely goes below the knee.
A rheumatologist or a qualified, experienced manual therapist such as a physiotherapist should be able to diagnose and treat this condition. See treatment section of this website