George H. Thompson, MD

This 3-month-old boy has an untreated right clubfoot deformity. The foot is stiff and uncorrectable. The vertical midfoot crease indicates significant deformity. An anteroposterior (AP) simulated weight-bearing radiograph shows parallelism of the long axis of the talus and calcaneus; this indicates varus alignment of the hindfoot. There is also forefoot adduction.

The collapse of the medial longitudinal arch, increased hindfoot valgus (eversion), and forefoot abduction in the foot of this 12-year-old girl (when weight bearing) are all typical features of a flexible flatfoot deformity.

The left foot of this 4-month-old boy has a convex sole with a rocker-bottom appearance, hindfoot equinus, and midfoot and forefoot dorsiflexion.

Bilateral skewfoot in a 7-year-old boy. The deformities were rigid in this child, and there was no improvement with growth.

This 1-year-old boy has a mild, flexible metatarsus adductus deformity of the right foot.

This 4-month-old infant has calcaneovalgus foot--a relatively common finding in newborns.