<prompt> Post Poliomyelitis, a patient has grade H power in Gastrocnemius, grade HI is Peroneus, grade IV in Tibialis Anterior. The deformity is -CalcaneovalgusEquino varusCalcaneo varusGenu valgus  <response>: Gastrocnemius plantar flexor is weak with grade II power, while tibialis anterior dorsi flexor is strong with grade IV power, Therefore foot is thrown into dorsiflexion or calcaneo position.Peronii everters provide valgus strain, while Tibialis anterior provides a varus strain. Because peronii are weak here grade III, the foot goes into varus position. 