Adjustable bone fusion implant and method

An adjustable bone fusion implant comprising:

• a housing comprising a top surface, a bottom surface and a pair of spaced apart expandable sidewalls extending therebetween, the top surface, bottom surface, and pair of expandable sidewalls at least partially bounding a compartment therebetween the expandable sidewalls including at least one mechanical stop that prevents collapsing of the sidewalls once expanded;
• and
• a discrete reinforcing member of a predetermined shape positioned in the compartment such that a compressive force applied on the top surface and bottom surface of the housing is transferred through the reinforcing member.

An adjustable bone fusion implant kit comprising:

• a housing comprising a top surface, a bottom surface, and a pair of spaced apart expandable sidewalls extending therebetween, the top surface and the bottom surface at least partially bounding a compartment therebetween, the expandable sidewalls being selectively expandable so that the compartment is correspondingly expandable between a plurality of predefined sizes, the expandable sidewalls including at least one mechanical stop that prevents collapsing of the sidewalls once expanded;
• and
• a plurality of discrete reinforcing members, each reinforcing member having a different size corresponding to one of the plurality of predefined sizes of the compartment, each of the reinforcing members being configured to be inserted into the compartment when the compartment is adjusted to the size of the corresponding reinforcing insert.