Sacroiliac Joint Dysfunctions
What is Sacroiliac Joint (SIJ) Dysfunction?
The sacroiliac joint is a joint between the tailbone (sacrum) and pelvis (ilium) bones. The 2 sides of the sacroiliac joint normally work together. If one side becomes stiff, they will not move well together and this causes pain or muscle stiffness in the area. Pain is often made worse with walking and bending activities. It is also possible that one side may become too loose (lax) as well, resulting in SIJ dysfunction.
SIJ Dysfunction can occur:
- During pregnancy
- With the injury, such as when a person falls
- When an athlete overtrains
- With muscle imbalances and hip problems, such as hypermobility or dysplasia
- Related to some types of arthritis, such as ankylosing spondylitis, an inflammatory process most often affects the lower back
How Does it Feel?
People with SIJ dysfunction may experience:
- Pain that may be sharp, stabbing, or dull, localized to one side of the pelvis/low back, groin, or tailbone.
- Pain that may radiate down to the knee.
- Pain with movements, such as standing up from a sitting position, turning in bed, or bending/twisting.
- Muscle tightness and tenderness in the hip/buttock region.
- Pain with walking, standing, and prolonged sitting.
- Pain that is worse when standing and walking, and eases when sitting or lying down.
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