A plantar bone plate for treating fractures of a metatarsal bone, comprising: a generally elongate member having an upper surface and a lower, bone contact surface the elongate member comprised of a semi-rigid material; two or more fixation apertures disposed along a longitudinal dimension of the elongate member and configured to receive fasteners suitable for fastening the plantar bone plate to the metatarsal bone wherein the plantar bone plate is comprised of a material possessing a tensile strength suitable for immobilizing adjacent bone portions of the metatarsal bone; a compression slot configured to receive a fastener perpendicular to or at an oblique angle with respect to the upper surface for compressing adjacent portions of the metatarsal bone so as to encourage bone fusion; and characterised by a curvature along the elongate member configured to mate with the anatomy of the plantar aspect of the metatarsal bone wherein the curvature is comprised of a first bend and a second bend along the longitudinal dimension of the plantar bone plate, the first bend and the second bend comprising a tangent reverse curve, wherein the radius and concavity of the first bend and the radius and concavity of the second bend are configured to mate with the anatomy of the plantar aspect of the metatarsal bone comprising a 5 th metatarsal, and wherein the second bend comprises a smaller radius than a radius of the first bend; wherein the two or more fixation apertures each is comprised of a countersunk surface disposed below the upper surface of the bone plate and configured to allow a countersunk head of a fastener to assume a level that is above, flush with, or disposed below the upper surface when the fastener is tightened to hold the plantar bone plate against the metatarsal bone; and wherein the countersunk surface comprises a chamfer angle that ranges between 60° and 120°, and a locking feature; and wherein the countersunk surface is configured to prevent the fastener from backing out after being implanted into a bone. a generally elongate member having an upper surface and a lower, bone contact surface the elongate member comprised of a semi-rigid material; two or more fixation apertures disposed along a longitudinal dimension of the elongate member and configured to receive fasteners suitable for fastening the plantar bone plate to the metatarsal bone wherein the plantar bone plate is comprised of a material possessing a tensile strength suitable for immobilizing adjacent bone portions of the metatarsal bone; a compression slot configured to receive a fastener perpendicular to or at an oblique angle with respect to the upper surface for compressing adjacent portions of the metatarsal bone so as to encourage bone fusion; and characterised by a curvature along the elongate member configured to mate with the anatomy of the plantar aspect of the metatarsal bone wherein the curvature is comprised of a first bend and a second bend along the longitudinal dimension of the plantar bone plate, the first bend and the second bend comprising a tangent reverse curve, wherein the radius and concavity of the first bend and the radius and concavity of the second bend are configured to mate with the anatomy of the plantar aspect of the metatarsal bone comprising a 5 th metatarsal, and wherein the second bend comprises a smaller radius than a radius of the first bend; wherein the two or more fixation apertures each is comprised of a countersunk surface disposed below the upper surface of the bone plate and configured to allow a countersunk head of a fastener to assume a level that is above, flush with, or disposed below the upper surface when the fastener is tightened to hold the plantar bone plate against the metatarsal bone; and wherein the countersunk surface comprises a chamfer angle that ranges between 60° and 120°, and a locking feature; and wherein the countersunk surface is configured to prevent the fastener from backing out after being implanted into a bone.