Tarsal Coalition & Peroneal Spastic Flatfoot

Question 1

What physical exam findings are c/w tarsal coalition?

Answer 1

1) limited subtalar motion
2) rigid flatfoot; arch does not correct with toe standing
3) hindfoot valgus
4) hx of recurrent ankle sprains

Question 2

What is the treatment for tarsal coalition?

Answer 2

Most pts do well with non operative immobilization and/or casting

If fail non-op:

1) coalition resection with interposition of fat (talocalcaneal) or EDB tendon (calcaneonabicular)
2) subtalar arthroresis?
3) triple arthrodesis if above tx fails

Question 3

Tarsal coalition is a/w what positive history?

Answer 3

Recurrent ankle sprains; will be TTP at sinus tarsi

Question 4

What is a cause of pediatric spastic flatfoot?

Answer 4

Tarsal coalition; most commonly calcaneonavicular