An intramedullary nail includes a longitudinal core extending along a longitudinal axis from a proximal portion of the nail to a distal portion thereof, the core including a plurality of interlocking features around a circumference thereof and a polymeric casing extending about at least a portion of the circumference of the core including the interlocking features to mechanically interlock the casing and the core, at least a portion of a length of the core being embedded within the casing offset from a longitudinal axis of the nail so that a thickness of casing varies about a circumference of the nail, a maximum thickness of the casing being located at a site at which a polymeric locking element is to be bonded to the nail.
