A percutaneous implant (10) comprises a bone-fixation portion (20), a spigot portion (50) for the attachment of an external prosthesis, and a pear-shaped portion (40) having a porous outer region (44) comprising a mesh of wire mesh material around a central core. The portion (40) is disposed between the spigot portion (50) and a collar (30) which has a plurality of through holes (34) adjacent to its edge. The bone-fixation portion (20) may have extending parallel thereto a plate (72) for attachment to the side of a bone.
