The indications and technique for surgical correction of pes cavus with external fixation

Cavovarus is a deformity commonly associated with a variety of underlying disorders, and treatment of severe cavovarus foot with an underlying progressive disorder is very challenging. Often patients have undergone some prior surgery at least once, with increased potential risk of neurovascular injury and breakdown of soft tissue. In addition, concomitant problems such as torsional malalignment and leg-length discrepancy should also be addressed to prevent recurrence and treatment failure. In this article, indications and an algorithmic approach with various osteotomies for the treatment of cavovarus deformity using external fixation are discussed in detail.