Forces that can influence talonavicular joint are posterior tibial, the deltoid ligament, the calcaneonavicular ligament, the whole talonavicular capsule, the dorsal
talonavicular ligament, the bifurcated (Y) ligament, the inferior extensor retinaculum, and occasionally the cubonavicular oblique ligament.
Yet, it is possible that these exostoses could be confused with a normal ridge found dorsally on the talus approximately at the insertion sites of the anterior capsule, the
talonavicular ligament, and the anterior talofibular ligament because a normal ridge and hypertrophied ridge vary from one another only in size.
