Hi Clara,
I believe I have an understanding of the footwear you require, that specifically addresses causes of bunion pain. Of course this is the structural component usually addressed by surgery and of course the functional component that is usually not explored clinically all that often, being the underlying root and CAUSE of bunion pain and its associated osteoarthritic / fused condition. This footwear eliminates pain by addressing the cause from the inside of the footwear. This works to either eliminate or prevent pain, but also works for 18 muscular skeletal pain conditions and over 50 separate pain condition variants.
What is essentially addressed is the precise exact cause of bunion pain as just mentioned from a functional and structural perspective, which is related to 3 specific factors that increases the deterioration of the hallux bone, making it become osteoarthritic and painful.
1. The first is the structural deformity itself, which is fused and immobile. In most cases the 1st Ray or big toe is also deviated toward the lesser toes. Therefore, this causes toe off during your gait cycle to occur across the medial side of the toe leading to thickened hard skin along the big toe.
This deviation also causes the lesser toes to become pushed together, which can squeeze the neural pathways between these lesser toes leading to a condition called metatarsal pain. The result of this can be intense sharp pain along the forefoot.
2. Both these conditions are made worse by a usually high forefoot varus angle, which is an Inherited Biomechanical functional element, which when measured is higher than 7°. This alone is the underlying root and CAUSE of bunion pain. When walking this high forefoot varus angle increases what is known as lateral foot role and the foot not only becomes more unstable but comes from a great height and crashes down onto the hallux bone, during the gait cycle. This occurs just before the upper body weight moves forward and the big toe is activated to push off. This is what causes osteoarthritis and leads to greater wearing of the hallux bone and bunion formation.
3. One factor very rarely investigated when examining bunions and fused hallux bones is responsible for causing and making this bunion osteoarthritic and that is a structural leg length discrepancy.
See with a measured longer leg of a discrepancy over 5mm, the forefoot angle just spoken about must become higher during the gait cycle, to get the big toe through the entire gait cycle, as the foot is in greater contact with the ground. This increases the rate of degeneration of the hallux joint, as the height of the forefoot varus angle is increased; the hallux bone has a greater height to come crashing down from.
However, with a shorter leg of just 5mm the gait cycle becomes interrupted and the forefoot must come down faster to toe off sooner, as the foot is in less contact with the ground. Therefore, the foot forces the toes to stab the ground whilst trying to get the toes to the ground faster. This also increases the rate of degeneration of the hallux bone.
Just a foot note here is that 86% of the world’s population actually have a structural leg length discrepancy, and 85% of this 86% have between a 4mm to 6mm discrepancy. All these exact contributing issues must be addressed all at once and all at the same time, to prevent any further damage and degeneration. I’m sure my recommendation could help you out, as both the structural and functional components are addressed all at the same time.
Good luck and I hope this further information is of help.