“…As the fibula normally contributes to the structure and stability of the lateral part of the ankle joint, its absence in conjunction with absent or insufficient ligaments in the ankle and knee, particularly the anterior cruciate ligament, can significantly affect joint stability and therefore may affect lower limb function and participation in daily activities [7]. It is commonly associated with an equinovalgus [2,3,6,8,9,10,11,12,13] or equinovarus [3,6,9,10] foot, in addition to lateral ray deficiencies, tarsal coalition, anteromedial bowing of the tibia, genu valgum, hypoplastic patella, cruciate ligament deficiency [9,13], and femoral shortening.…”