An intramedullary nail extending along a longitudinal axis from a proximal end to a distal end, comprising: a cavity extending from an opening at the proximal end along the longitudinal axis; a first locking hole having a first cross-sectional dimension and extending transversely through the nail sized and shaped to receive a locking screw therethrough; a first insert sized and shaped for insertion into the cavity including a first transverse bore having a second cross-sectional dimension and arranged so that, when the insert is in the desired position within the cavity, the first bore is aligned with the first locking hole so that a locking screw inserted through the first locking hole passes through the insert via the first bore; the second cross-sectional dimension is less than the first cross-sectional dimension; the locking hole and the bore are circular in shape; and whereby the intramedullary nail further comprises at least one locking screw configured for insertion into the at least one locking hole and the least one bore, wherein the at least one locking screw has a threaded portion having a third cross-sectional dimension that is greater than the second cross-sectional dimension; characterised in that the intramedullary nail defines an axial stop in the cavity, and wherein the cavity includes a proximal cavity portion that extends from the proximal end of the intramedullary nail to the axial stop, wherein the insert is disposed in at least a portion of the proximal cavity portion; in that the second end of the insert defines a stop face suitable for contacting the axial stop in the cavity; and in that the insert has an eccentric nose that extends from the stop face toward the distal end of the intramedullary nail. a cavity extending from an opening at the proximal end along the longitudinal axis; a first locking hole having a first cross-sectional dimension and extending transversely through the nail sized and shaped to receive a locking screw therethrough; a first insert sized and shaped for insertion into the cavity including a first transverse bore having a second cross-sectional dimension and arranged so that, when the insert is in the desired position within the cavity, the first bore is aligned with the first locking hole so that a locking screw inserted through the first locking hole passes through the insert via the first bore; the second cross-sectional dimension is less than the first cross-sectional dimension; the locking hole and the bore are circular in shape; and whereby the intramedullary nail further comprises at least one locking screw configured for insertion into the at least one locking hole and the least one bore, wherein the at least one locking screw has a threaded portion having a third cross-sectional dimension that is greater than the second cross-sectional dimension; characterised in that the intramedullary nail defines an axial stop in the cavity, and wherein the cavity includes a proximal cavity portion that extends from the proximal end of the intramedullary nail to the axial stop, wherein the insert is disposed in at least a portion of the proximal cavity portion; in that the second end of the insert defines a stop face suitable for contacting the axial stop in the cavity; and in that the insert has an eccentric nose that extends from the stop face toward the distal end of the intramedullary nail.