Subtalar tarsal coalition is an autosomal dominant developmental maldeformation that affects between 2% and 13% of the population. The most common locations are between the calcaneus and navicular and between the talus and calcaneus.
Flexible adult acquired flatfoot disorder is commonly treated with the use of osteotomies in the calcaneus and medial column. The combination of these joint-preserving osteotomies with additional soft-tissue procedures allows realignment of the hindfoot with the goal of preventing further deformity or degenerative joint disease.
Tarsal coalitions, while relatively uncommon, are typically identified in adult patients during an evaluation for ankle instability, sinus tarsus pain, and/or pes planovalgus. The true incidence of tarsal coalition is unknown with estimates ranging from 1% to 12% of the overall population. The most common area of involvement of the subtalar joint is the middle facet, and heightened awareness should be present in adult patients with limited motion of the subtalar joint
The preferred surgical approaches to subtalar fusion are the sinus tarsi incision, the medial incision, and the extensile lateral approach. The choice of one over the other depends on the underlying pathology, previous surgeries, associated foot pathologies, soft tissue quality, and medical comorbidities. This article reports on several cases of subtalar joint fusion.
This issue of Clinics in Podiatric Medicine and Surgery is focused on the diagnosis and treatment of sports-related foot and ankle injuries. A variety of topics from acute osseous and soft tissue injuries to overuse lower extremity injuries and rehabilitation are very well covered by our guest editor, Dr Langer, and invited authors. Special attention is emphasized in treating the competitive athlete as well as the physically active older individuals and aging athletes.