ASSEMBLY FOR PREPARING BONE STOCK

An assembly for preparing bone stock includes a shell (52) comprising a base (54) having a support surface (56) and an outer surface (59) opposite said support surface, and a lid (58), said base and lid having a void space (60) therebetween. The assembly further includes a carriage (62) disposed at least partially within said void space, and moveable across said support surface of said base, said carriage comprising a wall (64), and a removal element disposed at least partially in said preparation chamber. Said wall comprises a plurality of articulating wall segments (70) and cooperates with said support surface of said base to define a preparation chamber (66). Said removal element is configured to prepare bone stock by removing soft tissue from said bone stock. Said carriage is configured to receive power from a drive train to actuate linear movement of said carriage across said support surface, and said removal element is also configured to receive power from said drive train. Said plurality of articulating wall segments are configured to articulate relative to one another when bone stock is positioned between said removal element and said wall.