A spinal implant that includes a plurality of components adapted for use as an implant in a disc. Each component is configured to be inserted into a void of a disc and each component complimentarily abuts at least one other component to form the implant. A method treating a spinal disc that includes creating a port from a posterior approach into the disc space of a spinal disc; and inserting components that form a spinal implant into the disc space through the port to form the spinal implant. A method of forming a modular spinal implant, comprising: preparing a plurality of components that are shaped for insertion into a disc, wherein each component abuts at least one other component in the disc.