Isolated Posterior Medial Ankle Dislocation with Associated Os Trigonum Dislocation after Low-Energy Mechanism

Figure 4

(a) AP view of the left ankle demonstrating mild medial tibial and talar osteophyte formation. (b) Mortise view of the left ankle again demonstrating medial osteophyte formation. (c) Lateral view of the left ankle demonstrating anterior tibial osteophyte formation and mild narrowing with mildly displaced os trigonum. (d) Lateral view of right ankle demonstrating nondisplaced os trigonum.

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