An oblique (3/4) radiograph also showed the calcaneonavicular coalition
in the right foot only (Fig.
(3) In addition to AP and lateral views, 45[degrees] oblique weight-bearing view is necessary to visualize a calcaneonavicular coalition. (4) Computed tomography is the standard imaging technique to evaluate tarsal coalitions.
Initial treatment of calcaneonavicular coalition includes a soft shoe insert or walking-cast immobilization.
Calcaneonavicular coalition: treatment by excision and fat graft.
Calcaneonavicular coalition treated by resection and interposition of the extensor digitorum brevis muscle.
Although it is uncommon for an os calcaneus secundarius to cause symptoms, range of motion of the subtalar joint may be limited by the ossicle, clinically resembling a calcaneonavicular coalition. (11)
Calcaneus secundarius presenting as calcaneonavicular coalition: A case report.
Another recent investigation by Lysack and Fenton, which intended to evaluate radiographic variations in calcaneonavicular morphology, incidentally noted a general prevalence of calcaneonavicular coalition to be 5.6%.
Features of calcaneonavicular coalition on coronal computed tomography.
Coalition of the middle talocalcaneal joint is second only to calcaneonavicular coalition
. Osseous, fibro-osseous, fibrous, and fibrocartilaginous forms have been described.