Post polio, a child has gastronemius power - Grade 2, peroneus longus- Grade 3, tibialis anterior - Grade 4. Deformity present is:
Ans: a (Calcaneo valgus)Ref: Textbook of Orthopaedics - Ebenezar, 4th ed.Tibialis anterior and peroneus longus which are the primedorsiflexor and evertor position the foot in calcaneo valgusdue to unequal muscle pull in the above case.Calcaneo valgus - Dorsiflexion at ankle and (eversion) at subtalar joint.Calcaneo varus - Dorsiflexion at ankle and varus (inversion) at sub talar joint.Equino valgus - Plantar flexion at ankle and valgus at subtalar jointEquino varus - Plantar flexion at ankle and varus at subtalar joint.
Calcaneo valgus
Calcaneo varus
Equino valgus
Equino varus
Miscellaneous