SI Joint Pain (Sacroiliac Joint Pain)


How it feels

Low back pain is a broad category that covers a wide array of pain mechanisms and is often muscle pain.  SI joint pain is most often pain associated with the ligaments holding the Sacroiliac joint together, and feels like low back pain. 

Common Causes   •   •   •   •   •   •   •   •   •   •   •   •   •

The SI joints connect the pelvic girdle (Ilium) to the end of the spine (Sacrum).  The SI joint is a tight joint with matching surfaces, bound together with strong anterior and posterior ligaments.  This joint is not designed for movement beyond cushioning and dampening the  impact from body motion.  If one leg is functionally shorter than the other, or more internally rotated because of hyperpronation, the SI joints may become exposed to pressure and torque that increase ligament tension.

Pregnancy often cause SI joint pain because pregnancy naturally relaxes the ligaments of the pelvic girdle contributing to pelvic instability. 


The Sacroiliac Joints are held together by two strong ligaments

How to eliminate the pain

SI Joint pain can be due to arthritic conditions and inflammation, so if you have SI joint pain, seeing a medical professional is a good idea.

If your chiropractor or osteopath can successfully manipulate (adjust) the SI joints to alleviate the pain, the problem is most likely positional and caused by poor posture.  Pain that returns fairly quickly after an adjustment, indicates unstable SI Joints from lax ligaments and weakened muscles or poor posture. 

Hyperpronation destabilizes the SI Joints by producing a functional short leg as well as causing the hips to rotate forward.   A change in the curve of the lower back (Lordosis) can cause more pressure on the SI joints.  To stabilize your pelvis, you need to stabilize your postural foundation.  That means reducing or eliminating hyperpronation.  Strengthening the muscles that contribute to stabilizing the SI joint may also be important. 





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If you hyperpronate, your arches drop from non-weight bearing (sitting with your feet on the ground) to weight bearing (standing).  When your arches drop, your ankles roll in and your heels lean in (evert) as illustrated in the picture.  Even a small amount of hyperpronation can cause Sacroiliac joint pain.


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The Solution - Posture Control Insoles®

Posture Control Insoles® do something no other orthotics can do:  Posture Control Insoles® are the only foot orthotics that naturally reduce hyperpronation by using your own muscles. Instead of weakening your feet with arch supports, you build strength through natural motion.

Even if you feel like your ankles are weak or lean out (supinate), chances are that your feet hyperpronate once your heels lift off the ground.  Posture Control Insoles® will naturally restore your foot function and posture by giving your feet - and your brain - a true read of the ground so your muscles can keep your feet and body balanced.  That's why Posture Control Insoles® work for so many different pain symptoms including SI joint pain.

The insoles are guaranteed to work for you.  Trim and wear them for 90 days.  If they do not relieve your symptoms to your satisfaction, you may return them for a full refund including shipping and handling charges.  You can also call us - We'll be glad to help you troubleshoot. 


"Normalize Your Feet"



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Getting Started

The ordering process is simple.  Two quick evaluations will tell you exactly what Posture Control Insoles® to buy. 

  • Check your shoe wear pattern

  • Check your foot mechanics

We'll show you exactly how.  Click to proceed with your "2 minute evaluation".

Would you rather just test them in your shoes?  You'll have what you need with the Perfect Fit™ package giving you both the 3.5 mm and the 6.0 mm pair - the second pair at a 40% discount. 

Relief in just a few days: Start by choosing Gender and Size.

*Choose#1 (low) Arch for flat feet and mild Plantar Fasciitis.  Choose #2 (high) Arch for severe Plantar Fasciitis. Otherwise choose NO arch support.

Perfect Fit™
$70.00 + S&H


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