| Summary: | Posterior ankle impingement syndrome is a common cause of ankle pain. Posterior osteochondroma of the talus is very rare and scarcely described in the literature, although it should always be considered an etiological hypothesis of posterior impingement. As for surgical treatment, both endoscopic and open approaches are reported as therapeutic options. The endoscopic approach, however, provides advantages over open procedures. Although little data has been published, it is believed that the former has more advantages. I report a rare case of posterior osteochondroma of the talus in a young man, clinically manifested as posterior ankle impingement syndrome and treated endoscopically. Level of Evidence V; Diagnostic Studies; Expert Opinion.
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