Expandable spinal implant system and method

A spinal implant comprising:

• an outer body including a wall having an inner surface that defines a chamber;
• an inner body extending between a first end defining an opening and a second end and defining a longitudinal axis, the second member including a wall defining an axial channel;
• at least one cylindrical insert comprising demineralized cancellous bone particles and demineralized cortical bone particles, the at least one insert being selectively configured and dimensioned for disposal within the axial channel and expansion upon exposure to liquid in vivo into the chamber;
• wherein the inner body is disposable within the chamber and axially translatable relative to the outer body between a first configuration and a second, expanded configuration such that at least a portion of the at least one insert is disposed within the chamber and the chamber includes a substantially void portion;
• and
• bone graft having a selective configuration and dimension for disposal within the substantially void portion.

A method for treating a spine, the method comprising the steps of:

• providing a spinal implant comprising a first member including a wall that defines a first cavity and a second member disposed with the first member and defining a longitudinal axis, the second member including a wall defining a second cavity;
• selecting at least one first bone graft for disposal in the second cavity;
• axially translating the second member relative to the first member between a first configuration and a second, expanded configuration such that at least a portion of the at least one first graft is expanded within the first cavity and the first cavity includes a substantially void portion;
• and
• selecting at least one second bone graft having a selective configuration and dimension for disposal within the substantially void portion.