A constant structural eversion of the forefoot. This is a structural or positional deformity that is most common in the forefoot.
This is an everted position of the forefoot relative to the rearfoot at the level of the midtarsal joint. Inversion of the lateral column of the foot must occur to allow the forefoot to propel the supporting surface during the midstance and propulsive phases of gait.
Clinical observations and symptoms:
Lateral heel callus; Intractable Plantar Keratoma 1,5; Sesamoiditis; hammer toes; plantar fasciitis; lateral ankle pain
This is an extremely rare biomechanical presentation. It is associated with severe tibial valgum (knock knees) and excessive subtalar pronation.