Equinus is a common foot and ankle condition that, depending on the clinical definition, is thought to be present in the majority of the population. It is also recognized as a leading contributor to foot pathology. In simple terms, equinus is the inability of the ankle joint to dorsiflex sufficiently to allow the body’s center of mass to pass over the plantigrade foot. Any restriction in motion at the ankle joint, as the tibia moves over the foot in midstance, will produce a compensation. As this forced compensation occurs dynamically during full weight bearing, the long-term effects can be detrimental.