Simultaneous Talocalcaneal and Talonavicular Joint Dislocation With Navicular Bone Fracture of a Teenager While Playing Football: A Report of a Rare Case

Simultaneous talocalcaneal and talonavicular joint dislocation, in other words, subtalar joint dislocation, and navicular bone lateral process fracture are rare orthopedic injuries. In this case, we aimed to discuss the effectiveness and ergonomics of non-surgical follow-up with a short leg splint after reduction of talonavicular, talocalcaneal joint dislocation, and lateral process fracture of the navicular bone. A 17-year-old male patient was admitted to the emergency department with swelling and pain in his left foot after spraining his left foot while playing football. Pain, swelling, and deformity in the left foot were evident without a neurovascular deficit. Radiographs showed simultaneous left foot talonavicular joint dislocation, talocalcaneal joint dislocation, and navicular lateral process fracture. The patient underwent closed reduction and a short leg splint. We followed the patient regularly, removed the leg splint in the fourth week, and started various movement exercises. We started muscle strengthening exercises in the sixth week and reached full range of motion with full muscle strength without any deformity in the eighth week. In this case, closed reduction and short leg splint with traction along the axis of the left foot and manipulation of the talus laterally by everting the ankle were sufficient. We restricted the movement of the ankle and tarsometatarsal joint with a short leg splint and reached full range of motion with follow-ups and exercises.