A Fixed, Unreducible, Unstable Medial Swivel Dislocation of the Talonavicular Joint with Associated Navicular Fracture

Figure 3

(a) Intraoperative image showing reduction after open treatment and direct pressure on the navicular bone to hold it reduced; the red line outlines both the navicular and talus bones at the talonavicular joint (TN joint is reduced). (b) Intraoperative image showing the talonavicular joint again with new dislocation after letting pressure off of the foot, demonstrating the unstable nature of the injury; the red line outlines both the navicular and talus bones at the talonavicular joint (TN joint is unreduced).

(a)

(b)