An adjustable-height bone plate system comprising: a plate body portion having a first end, a second end, a first side, a second side, a lower surface, an upper surface, a first thickness between the lower surface and the upper surface, and at least one aperture extending between the lower surface and the upper surface, portions of the first end and the second end being opposite from one another, portions of the first side and the second side being opposite from one another, the lower surface being configured to contact bone, and the at least one aperture being configured to receive a bone screw to facilitate attachment of the plate body portion to bone; a plate head portion having a first end, a second end, a lower surface, an upper surface, a second thickness between the lower surface and the upper surface of the plate head portion, and an aperture extending between an opening in the lower surface and an opening in the upper surface of the plate head portion and including threads extending along at least a portion thereof between the lower opening and the upper opening; a plate neck portion including a first end and a second end opposite from one another, the first end being attached to the plate body portion, the second end being attached to the plate head portion, the plate neck portion extending upwardly and outwardly from the plate body portion, wherein the plate neck portion spaces the upper surface of the plate head portion from the upper surface of the plate body portion at least a first height; and a screw portion, wherein the aperture of the plate head portion is configured to receive a portion of the screw portion therein, and the screw portion has threads, via which it can be complimentary threaded to engage the threads of the aperture, wherein the screw portion further comprises a screw head portion which is positionable upwardly and downwardly via rotation of the screw portion relative to the aperture in the plate head portion between a minimum second height and a maximum third height relative to the upper surface of the plate head portion; characterized in that the system further comprises a spring positioned between the upper surface of the plate head portion and the screw head portion, the spring including a lower portion, an upper portion, and at least a first end portion attaching the lower portion and the upper portion to one another, the at least a first end portion generating a spring force biasing the lower portion and the upper portion into a first orientation relative to one another. a plate body portion having a first end, a second end, a first side, a second side, a lower surface, an upper surface, a first thickness between the lower surface and the upper surface, and at least one aperture extending between the lower surface and the upper surface, portions of the first end and the second end being opposite from one another, portions of the first side and the second side being opposite from one another, the lower surface being configured to contact bone, and the at least one aperture being configured to receive a bone screw to facilitate attachment of the plate body portion to bone; a plate head portion having a first end, a second end, a lower surface, an upper surface, a second thickness between the lower surface and the upper surface of the plate head portion, and an aperture extending between an opening in the lower surface and an opening in the upper surface of the plate head portion and including threads extending along at least a portion thereof between the lower opening and the upper opening; a plate neck portion including a first end and a second end opposite from one another, the first end being attached to the plate body portion, the second end being attached to the plate head portion, the plate neck portion extending upwardly and outwardly from the plate body portion, wherein the plate neck portion spaces the upper surface of the plate head portion from the upper surface of the plate body portion at least a first height; and a screw portion, wherein the aperture of the plate head portion is configured to receive a portion of the screw portion therein, and the screw portion has threads, via which it can be complimentary threaded to engage the threads of the aperture, wherein the screw portion further comprises a screw head portion which is positionable upwardly and downwardly via rotation of the screw portion relative to the aperture in the plate head portion between a minimum second height and a maximum third height relative to the upper surface of the plate head portion; characterized in that the system further comprises a spring positioned between the upper surface of the plate head portion and the screw head portion, the spring including a lower portion, an upper portion, and at least a first end portion attaching the lower portion and the upper portion to one another, the at least a first end portion generating a spring force biasing the lower portion and the upper portion into a first orientation relative to one another.