FIELD: medical engineering. SUBSTANCE: device has movably articulated astragal and tibial parts attachable to bone. The astragal and tibial parts are manufactured from aluminum ceramics. The astragal and tibial endoprosthesis part surface has anatomical profile in movable articulation zone like profile of the corresponding surface of the talocrural articulation under treatment. The astragal and tibial endoprosthesis parts are manufactured porous in the areas they are attached to the talus and tibia with decreasing density and increasing porosity when moving from the articulation surface towards the endoprosthesis members attachable to bone or have porous coating. EFFECT: low weight; simplified design; enhanced effectiveness of functioning. 10 cl, 2 dwg
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