Abstract
Osteochondral lesions of the talus must be known, and especially in the aftermath of hindfoot trauma. Even if certain mechanisms producing them are known, their etiopathogenesis is not yet formally settled. It seems essential, to characterize them, to use the radiological classification fracture-osteonecrosis-geod (FOG). Their diagnosis, like their surgical treatment, remains always a challenge for the practician: certain rules are common to all, such as debridement and abrasion of necrotic tissue, others optional depending on habits, situation and size of lesion. None of them seem superior to the others. Arthroscopy was required for lesions of modest size less than 1.5 cm2, while the others must be filled. The support of these lesions therefore always remain delicate and relatively us to certain modesty about _the literature also encouragesthe results of surgical management.
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