A device for implanting a bone fixation system comprises an insertion instrument extending from a proximal end to a distal end the distal end having an engagement portion for removably engaging a proximal end of a bone plate the insertion instrument having an elongated channel extending therethrough to permit insertion of a first protection sleeve therethrough wherein a longitudinal axis of the elongated channel is coaxial with a longitudinal axis of a first opening extending through the bone plate and a first protection sleeve insertable into the elongated channel and guiding insertion of an anti rotation screw therethrough and through the bone plate a longitudinal axis of the first protection sleeve being angled with respect to the longitudinal axis of the elongated channel.
