The sacroiliac joint (sometimes called the SI joint) is the joint connection between the sacrum or the lower part of the spine with the pelvis – especially the femur (upper part) and larger pelvic region. As with all joints, the sacral joint is fixed together by strong ligaments, a connective tissue that stabilises the bone in place. Although most joints allow bone movement, like the knees, the iliac joint is essentially immobilised and fixed. If there is a defect in the sacral joint, such as the pain, injury or inflammation, it leads to a condition known as Sacroiliac Joint Dysfunction which requires targeted lower back pain treatment.
What is Sacroiliac Joint Dysfunction?
It refers to pain or discomfort that originates in the lower back and upper hip region. The pain caused by this condition is often quite hard to differentiate between other back or hip injuries, for example, sciatica or a herniated disc where pain radiates from lower back and down the leg. Such conditions can also create other issues such as lower back pain.
So, what are the common causes, signs, and symptoms?
Sacroiliac joint dysfunction can be caused by different things, however before we dive in, let’s take a look at the primary mechanisms of SI joint dysfunction. This includes;
• To much movement: Either hypermobility or instability in the SI joint can generate pain in the pelvis, making it feel unstable and lead to chronic pain. Overuse or excessive movement generally causes pain in the lower back or hip region, which may radiate pain to the groin region also.
• Minimal movement: Either hypomobility or fixation can also cause severe tension in muscles causing mobility issues or restrictions. Here, you will generally feel pain on a single side of the back or buttocks, and can at times radiate down the leg similar to sciatica.
As with other joints in the body, arthritis can affect the sacroiliac joint. Osteoporosis, arthritis can occur when the cartilage becomes thinner joints. After that, the bone will be digested against each other and can lead to arthritis, which is the main cause of SI dysfunction. Another condition that can cause SI weakness is the direct effect on the joint, as in the fall. Due to changes in attitudes and abnormalities in pregnancy hormones, SI is a common problem in pregnant women.
Another cause of Sacroiliac joint dysfunction is muscle imbalance. A pelvis is a place for many muscles that work closely together, control the movements of the lower body and support the weight of the upper body. If there is muscle dysfunction, the network of solid ligaments that support the joint will be pulled in one direction, pulling the joint from its right position, up or down, forward or backward. This may cause added pressure on nerves, resulting in a herniated disc and forcing the need for sciatica treatment.
An example of the muscle imbalance that causes dysfunction in the SI joint is the tense muscles in the lower back and flexion in the hips with weak thigh muscles and abdominal muscles. The thigh muscles (the thigh muscles that work on the knee) and the lower back muscles are often narrow due to poor posture and inappropriate bending and lifting techniques, which are also vital mechanical problems that also lead to weakened abdominal muscles. Pulling the muscles of the narrow, short pelvis tilts forward. Tighten the joint ties and push the pond out.
Another cause of Sacroiliac joint dysfunction is trauma. A strong fall or another blow to the SI connector sink can fall from its place. This can cause hyperactivity or lack of movement in the joint, and both abnormalities lead to the response of the inflammatory body to fill the area. Results of great pain. Other causes of this condition include infection, pregnancy hormones, and arthritis.
It is important to understand that the position of the pelvis and the position of the spine do not change from day today. For this to happen, it takes time, often many years, when your muscles are not balanced. These muscle imbalances cause the postural disorder. In the end, if the muscles and bones and the artificial intelligence detail do not work properly, they will cause a condition called iliac joint dysfunction.
What are the symptoms?
SI joint dysfunction can be seen in several ways. The genetic cause is the leg length discrepancy. This will cause the pelvis, and thus the joints, to be leveled.
If the SI joint is misaligned or if it moves too much or too little, the SI joint is defective. This condition causes pain in the injured joint area, which can radiate through the lower back, buttocks, hips and sometimes the leg, especially at the back of the thigh. Most people complain range from local pain to radiated pain around the legs or buttocks.
About the Author
Tim Adams is a leading musculoskeletal physio bondi junction who specialises in both headache and spine treatment. With over 20 years’ experience, Tim is referred to by some of Australia’s leading neurosurgeons to help with post-operative rehabilitation from his boutique spine physiotherapy clinic.