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Equinus is a condition in which the upward bending motion of the ankle joint is limited. Someone with equinus lacks the flexibility to bring the top of the foot toward the front of the leg.
Herein, what causes Equinus?
Causes. Equinus is often it is due to tightness in the Achilles tendon or calf muscles. For some, this may be congenital (present at birth) or an inherited trait. Infrequently, equinus can be caused by spasms in the calf muscle, which may be a sign of an underlying neurologic disorder.
Similarly, is Equinus painful?
Without clinical research to guide us, we are left with equinus being a potential cause of foot problems. Much like degenerative arthritis or ankle instability may be the cause of ankle pain, in some cases, an equinus deformity may cause a collapse of the arch and medial ankle pain.
When the front of your foot is lower than your heel it is called forefoot equinus. Even when your foot is on a flat surface, it will have an unusually high arch.