HIP PROSTHESIS

摘要

The prosthesis of the invention comprises a shaft (1) with its upper end (3) linked to a neck (2) connecting it to a spherical joint head. The shaft (1) comprises a proximal area (H1, H2) with a reversed spiral double twist, over a length substantially equal to one third or half of the length (H) of the shaft (1). The proximal segment (H2) of the proximal area and the distal area (H3) are generally rectilinear in the antero-posterior plane, while the distal segment (H1) of the proximal area is curved with the center offset frontwards. The invention provides a prosthesis that fits more effectively in the medullary channel and does not need cement to fix it.