A bone plate, comprising: an elongated body extending from a proximal end to a distal end and including a first surface which, when in an operative position, faces away from a bone on which the plate is to be mounted and a second surface which, when in the operative position, faces the bone; a first three-part combination hole extending through a proximal portion of the plate, the first three-part combination hole including a first portion, a second portion and a third portion, the first and third portions (112, 116) defining opposing longitudinal ends of the first three-part combination hole with the first portion and the third portion connected via the second portion, the first portion being threaded and configured to engage a threaded head portion of a bone fixation element, the second portion being unthreaded and configured to receive a bone fixation element along an axis substantially perpendicular to a longitudinal axis of the bone when the plate is mounted thereon in a desired orientation, and the third portion being unthreaded and including a first wall extending from the first surface toward the second surface and a second wall extending outward along the longitudinal axis of the bone plate from an end of the first wall to the second surface so as to define a screw axis extending from the second surface toward the distal end of the elongated body at a non-perpendicular angle relative to the longitudinal axis of the bone when the plate is mounted thereon in a desired orientation; and a first two-part combination hole extending through the proximal portion of the plate, the first two-part combination hole including a first portion and a second portion, the first portion being threaded and configured to receive and engage a threaded head portion of a bone fixation element and the second portion defining an elongated portion extending along a longitudinal axis of the plate for receiving a bone fixation element therethrough so that the plate may slide along its longitudinal axis relative to the bone fixation element received therethrough. an elongated body extending from a proximal end to a distal end and including a first surface which, when in an operative position, faces away from a bone on which the plate is to be mounted and a second surface which, when in the operative position, faces the bone; a first three-part combination hole extending through a proximal portion of the plate, the first three-part combination hole including a first portion, a second portion and a third portion, the first and third portions (112, 116) defining opposing longitudinal ends of the first three-part combination hole with the first portion and the third portion connected via the second portion, the first portion being threaded and configured to engage a threaded head portion of a bone fixation element, the second portion being unthreaded and configured to receive a bone fixation element along an axis substantially perpendicular to a longitudinal axis of the bone when the plate is mounted thereon in a desired orientation, and the third portion being unthreaded and including a first wall extending from the first surface toward the second surface and a second wall extending outward along the longitudinal axis of the bone plate from an end of the first wall to the second surface so as to define a screw axis extending from the second surface toward the distal end of the elongated body at a non-perpendicular angle relative to the longitudinal axis of the bone when the plate is mounted thereon in a desired orientation; and the first portion being threaded and configured to engage a threaded head portion of a bone fixation element, the second portion being unthreaded and configured to receive a bone fixation element along an axis substantially perpendicular to a longitudinal axis of the bone when the plate is mounted thereon in a desired orientation, and the third portion being unthreaded and including a first wall extending from the first surface toward the second surface and a second wall extending outward along the longitudinal axis of the bone plate from an end of the first wall to the second surface so as to define a screw axis extending from the second surface toward the distal end of the elongated body at a non-perpendicular angle relative to the longitudinal axis of the bone when the plate is mounted thereon in a desired orientation; and a first two-part combination hole extending through the proximal portion of the plate, the first two-part combination hole including a first portion and a second portion, the first portion being threaded and configured to receive and engage a threaded head portion of a bone fixation element and the second portion defining an elongated portion extending along a longitudinal axis of the plate for receiving a bone fixation element therethrough so that the plate may slide along its longitudinal axis relative to the bone fixation element received therethrough. the first portion being threaded and configured to receive and engage a threaded head portion of a bone fixation element and the second portion defining an elongated portion extending along a longitudinal axis of the plate for receiving a bone fixation element therethrough so that the plate may slide along its longitudinal axis relative to the bone fixation element received therethrough.