A bone plate and method in vivo deployment is designed to secure proximate portions of a bone together. The bone plate includes first and second anchoring regions extending in at least two direction to form a surface configured to extend coaxially with a bone and having formed therein a plurality of passages configured to receive fasteners to secure the first and second anchoring region to respective first and second portions of the bone. A deformation region extends to join the first and second anchoring regions along at least one plane extending substantially co-planar with the surface of the first anchoring region and the surface of the second anchoring region and having reduced structural integrity with respect to the first and second anchoring region to deform the deformation region and, thereby, adjust a relative orientation between the first and second anchoring regions in response to forces applied to the deformation region.