Where your pelvic meets your spine (or sacrum) there is a large ligament complex that provides stability. Some can develop hypermobility of this joint from a trauma (ie: motor vehicle collision, or pregnancy), congenital causes (ie: Benign Joint Hypermobility Syndrome, or Ehler Danlos Syndrome), or overuse (ie: running). You can usually find a degree of temporary pain relief from manual therapy, SI belt use, or with gentle stretching/exercises. Often those with SI joint hypermobility present with tight and tender piriformis, quadratus lumborum, and psoas muscles. These are overactive to compensate for the perceived laxity in the interosseous ligament of the sacroiliac joint. Some may have been mistakenly diagnosed with lumbar facet joint arthropathy, and find little benefit from the typical treatments for this area. Also, inevitably, you will develop a weakness in your gluteal muscles that will be hard to remedy until you have more stability in your sacroiliac joints. Utilizing ultrasound-guidance we would place the hypertonic dextrose into the interosseous ligament 4-9 times at a 2-4 weeks interval, asking your body's own healing cascade to focus its attention on this structure, to then see it stiffen. Once you have more stability in your sacroiliac joints, you will be able to move on to fixing the muscle firing imbalance that has developed over time.