A spinal implant comprising: a first member including a wall that defines a first cavity and a lateral opening that communicates with the first cavity; a second member extending between a first end and a second end and defining a longitudinal axis (a), the second member including a wall defining a second cavity, the first end having a planar surface defining an opening that communicates with the second cavity and that has a circular configuration; one first expandable bone graft being expandable upon exposure to liquid in vivo and including a cylindrical insert being selectively configured and dimensioned for disposal within the second cavity and expansion into the first cavity, wherein the one first expandable bone graft is introducible through the opening defined by the planar surface of the first end and disposable within the second cavity with its cylinder axis extending along the longitudinal axis (a); wherein the second member is disposable within the first cavity and axially translatable relative to the first member between a first configuration and a second, expanded configuration such that at least a portion of the one first graft is disposed within the first cavity and the first cavity includes a substantially void portion; and at least one second bone graft having a selective configuration and dimension based on the determination of the configuration and dimension of the substantially void portion for disposal within the substantially void portion, wherein the at least one second bone graft is introducible through the lateral opening and disposable within the substantially void portion of the first cavity; wherein the one first expandable bone graft and the at least one second bone graft are specially formed and cut versions of bone graft material configured to fit and conform to an interior space (24, 44) of the implant. a first member including a wall that defines a first cavity and a lateral opening that communicates with the first cavity; a second member extending between a first end and a second end and defining a longitudinal axis (a), the second member including a wall defining a second cavity, the first end having a planar surface defining an opening that communicates with the second cavity and that has a circular configuration; one first expandable bone graft being expandable upon exposure to liquid in vivo and including a cylindrical insert being selectively configured and dimensioned for disposal within the second cavity and expansion into the first cavity, wherein the one first expandable bone graft is introducible through the opening defined by the planar surface of the first end and disposable within the second cavity with its cylinder axis extending along the longitudinal axis (a); wherein the second member is disposable within the first cavity and axially translatable relative to the first member between a first configuration and a second, expanded configuration such that at least a portion of the one first graft is disposed within the first cavity and the first cavity includes a substantially void portion; and at least one second bone graft having a selective configuration and dimension based on the determination of the configuration and dimension of the substantially void portion for disposal within the substantially void portion, wherein the at least one second bone graft is introducible through the lateral opening and disposable within the substantially void portion of the first cavity; wherein the one first expandable bone graft and the at least one second bone graft are specially formed and cut versions of bone graft material configured to fit and conform to an interior space (24, 44) of the implant.