Fronz the No/field Orthopaedic ('entre, Oxford, Englaizd It has long been known that avascular necrosis of the talus may occur as a sequel to certain fractures and dislocations. Consequently the blood supply to the talus has been the subject of considerable investigation. The arterial supply to the talus has been well described in most of its aspects but the arterial distribution and the anastomoses within the bone have not been elucidated completely despite their significant surgical implications. The present study was undertaken because modern techniques are particularly applicable in showing the extraosseous aIld intraosseous arterial supply. The first attempt to inject the vessels of the talus with a radiopaque substance and to study their distribution radiologically was by Lexer, Kuliga and Turk (1904). They said that THE JOURNAL OF BONE AND JOINT SURGERY 164 WALTER MERCER BIRTHDAY VOLUME THE JOURNAL OF BONE AND JOINT SURGERY 46, 720.

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