An expandable intervertebral implant including a first wall comprised of a male portion and a female portion in telescoping engagement with each other and a second wall comprised of a plurality of links, wherein the first wall and second wall are coupled to each other by hinges at each of the leading and trailing ends of the implant. The expandable implant is configured to be inserted into a disc space in a collapsed, narrow profile configuration and then unilaterally expanded in an anterior or posterior direction to a fully expanded, larger foot print configuration.