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The Foot and Ankle Online Journal 3 (9): 1Isolated talonavicular dislocation is rare because of the strong plantar ligamentous structures that support the joint.It appears that plantarflexion and inversion of the foot is the mechanism of injury.Very often, the strong spring ligament or plantar calcaneonavicular ligament is injured.Surgical repair is often the desired treatment in case of ligamentous injury.In this case, closed reduction with percutaneous pinning is presented as an alternative to open surgery.Early anatomical reduction is the key to preventing long term complications such as midtarsal joint arthritis and faulty foot mechanics.
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Jerome et al. (2010) studied this question.
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