Sacroiliitis can be a source of pain. Sacroiliac joint pain is usually centered in the low back, hips and buttock area on the side where the joint is affected. There can sometimes be radiation of the pain into the groin, the thigh and sometimes even past the knee. When you consider that a lot of repetitive motion and absorption of forces occurs through the seat in riding, it is not surprising that riders come in complaining of sacroiliac pain.
Sacral dysfunction can also be a cause of pain. The sacroiliac joint is responsible for connecting the spine to the pelvis. It is common for riders to have one side that is stronger than the other and this difference in strength can lead to Sacral dysfunction which can cause one leg to seem longer than the other. If the stirrups are not adjusted for a leg length discrepancy, the rider may tend to shift more weight to the side of the shorter leg causing an unbalanced seat. This lack of balance often can cause accelerated wear on the seat.
Since pelvic alignment is a crucial component of balance in the saddle, it is important for riders to address side to side strength differences and any limitation in pelvic mobility. Also, almost all riders benefit from a core and pelvic stabilization program. This stabilization program addresses any strength issues as well as conditions the muscles to create a more stable seat on the horse.
There are effective options to treat Sacroiliac conditions. Anti-inflammatory medications and physical therapy play a key role. Therapeutic injections into the sacroiliac joint can also be used to reduce inflammation as well as relieve pain. It is also important to correct any postural imbalances that may be causing more force to be absorbed by the sacroiliac joint.