Systems and methods for implanting a spinal implant between two vertebral bodies are provided. The spinal implant may include a main body adapted to rest between and adjacent to the two vertebral bodies, the main body having a cavity therein adapted to hold a filler and a cap adapted to connect to the main body where the cap is connectable after the main body has been inserted between the vertebral bodies and after the filler has been inserted into the cavity of the main body. The cap is securable to the main body by means of a securement member providing for a permanent connection between the main body and the cap.
