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The sacroiliac (SI) joint is a joint located between the sacrum and the ilium, which are two bones in the pelvis. The sacrum is a triangular bone at the base of the spine, composed of fused vertebrae, while the ilium is one of the three bones that make up the hip bone. The SI joint connects the sacrum and the ilium, providing stability and transmitting forces between the spine and the lower body.
The SI joint is a synovial joint, meaning it has a joint capsule and is lined with synovial fluid, which lubricates the joint and reduces friction during movement. The joint is reinforced by strong ligaments that help support the pelvis and provide stability. The main functions of the SI joint are to absorb shock, transmit forces between the upper body and the legs, and allow for a small amount of movement. While the SI joint is designed to be relatively stable, it does have some degree of mobility. The movement at the SI joint is generally limited to a small amount of rotation, tilting, and minimal sliding.
Understanding Sacroiliac Joint Problems: Sacroiliac joint dysfunction occurs when there is abnormal movement or inadequate support within the joint. This condition can lead to pain and discomfort in the lower back, hips, and buttocks. The exact cause of SI joint problems can vary from person to person, but common factors include injury, pregnancy, arthritis, and degenerative conditions.
Symptoms of Sacroiliac Joint Problems: The symptoms of sacroiliac joint problems can vary in intensity and duration. Some common signs to watch out for include:
- Pain in the lower back, buttocks, and thighs.
- Difficulty in sitting or standing for long periods.
- Pain while transitioning from sitting to standing or vice versa.
- Limited range of motion in the lower back or hips.
- Aching or sharp pain while climbing stairs or walking on uneven surfaces.
At SWCA, we have innovative solutions to treat Sacroiliac Joint Problems such as PaintEQ, Radiofrequency Ablation (RFA), SIFIX Si joint Fusion System, and VYRSA™ V1. Discover if you are a candidate with one of our SWCA physicians.
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