An implant system comprises an implant plate adapted to be positioned on asurface of aresected bone. The implant plate has a plurality of openings. A plurality ofindependentlypositionable pegs attach the implant plate to the bone Each peg has alongitudinal axis andcomprises: a peg body and a retaining device. The peg body is inserted into apeg hole in thebone. The peg body has a transverse dimension in a direction normal to thelongitudinal axis, thetransverse dimension larger than the openings of the plate. The retainingdevice is separate fromthe peg body, and is configured to attach to the peg body, with at least afirst portion of theretaining device positioned above an upper surface of the implant plate, and aconnecting portionof the retaining device extending through one of the openings of the implantplate.
