Patient-specific radial head prosthesis is a device intended for partial replacement of the elbow joint. This mono-block radial head prosthesis, combining anatomical head with bullet-tip stem, is designed to replace proximal portion of the radius and restore the natural articulation of the radial head with the radial notch of the ulna and capitulum of the distal humerus. The device is made of titanium alloys produced via additive manufacturing (Laser Powder Bed Fusion). The surgeon approves the design of the prosthesis prior to the fabrication.The titanium prosthesis is intended to be used with its surgical guide solution. The RadiBone’ s surgical guide solution is surgical instrument(s) designed anatomically for assisting medical professionals in cutting, drilling and/or positioning of bones during surgical operation