Total prosthesis metatarsophalangeal - phalangeal for resurfacing without cement.

摘要

Total metatarso-phalangeal resurfacing prosthesis, comprising a metatarsal component (100) and a phalangeal component (200). According to the invention, the said metatarsal component (100) comprises a friction shield (110) having substantially the shape of a laterally open sphere portion and intended to be fixed to the distal end of the metatarsal bone (10) without resection of the sesamoid bones, and the said phalangeal component (200) comprises a screw (210) which is intended to be introduced axially into the phalanx (20) and whose head (211) is equipped with a cup (220) forming an articular surface for the friction shield (110) of the metatarsal component (100). Application to resurfacing prostheses for the bones involved in the metatarso-phalangeal articulation. IMAGE