A method of manufacturing a surgical implant (100, 200, 200', 200", 300, 400, 500, 600, 700), comprising: forming a first component (130, 230, 230', 230", 330, 450, 508, 612, 618, 710) of the surgical implant, by: depositing a first quantity of material to a building platform; fusing the first quantity of material to form a first layer of the first component; depositing a second quantity of material over the first layer of the first component; and fusing the second quantity of material to the first layer of the first component to form a second layer of the first component, forming a second component (110, 210, 210', 210", 310, 410, 502, 602, 702) of the surgical implant, by: depositing the first quantity of material to the building platform; fusing the first quantity of material to form a first layer of the second component; depositing the second quantity of material over the first layer of the second component; and fusing the second quantity of material to the first layer of the second component to form a second layer of the second component, wherein the formation of the first and second components is performed simultaneously, wherein: the surgical implant is fully assembled upon the completion of the formation of the first and second components thereof, the first and second components are unitary, monolithic parts, and the first component is configured and dimensioned to nest and be housed within a cavity of the second component such that the first and second components are movable relative to one another but are not separable from one another, and wherein the first component includes a bone screw (130, 230, 230', 230", 330) having a bone screw head and a threaded shaft and the second component includes a spinal rod-receiving housing (110, 210, 210', 210", 310), the bone screw head being captured within the spinal rod-receiving housing. forming a first component (130, 230, 230', 230", 330, 450, 508, 612, 618, 710) of the surgical implant, by: depositing a first quantity of material to a building platform; fusing the first quantity of material to form a first layer of the first component; depositing a second quantity of material over the first layer of the first component; and fusing the second quantity of material to the first layer of the first component to form a second layer of the first component, depositing a first quantity of material to a building platform; fusing the first quantity of material to form a first layer of the first component; depositing a second quantity of material over the first layer of the first component; and fusing the second quantity of material to the first layer of the first component to form a second layer of the first component, forming a second component (110, 210, 210', 210", 310, 410, 502, 602, 702) of the surgical implant, by: depositing the first quantity of material to the building platform; fusing the first quantity of material to form a first layer of the second component; depositing the second quantity of material over the first layer of the second component; and fusing the second quantity of material to the first layer of the second component to form a second layer of the second component, depositing the first quantity of material to the building platform; fusing the first quantity of material to form a first layer of the second component; depositing the second quantity of material over the first layer of the second component; and fusing the second quantity of material to the first layer of the second component to form a second layer of the second component, wherein the formation of the first and second components is performed simultaneously, wherein: the surgical implant is fully assembled upon the completion of the formation of the first and second components thereof, the first and second components are unitary, monolithic parts, and the first component is configured and dimensioned to nest and be housed within a cavity of the second component such that the first and second components are movable relative to one another but are not separable from one another, and wherein the first component includes a bone screw (130, 230, 230', 230", 330) having a bone screw head and a threaded shaft and the second component includes a spinal rod-receiving housing (110, 210, 210', 210", 310), the bone screw head being captured within the spinal rod-receiving housing.