Patent ID: 8152813

Claim:
A method comprising: selecting a bone having an interior volume occupied, at least in part, by cancellous bone, establishing a percutaneous path into the bone, the percutaneous path including an opening into the bone, conveying only a first bone filling material through the percutaneous path to deposit the first bone filling material into a region of the cancellous bone, and after depositing the first bone filling material into the region, conveying only a second bone filling material different than the first bone filling material through the percutaneous path into the region and adjacent to the previously deposited first bone filling material in the region, wherein the first and second bone filling materials are conveyed into the region of the cancellous bone via the opening into the bone, wherein the first bone filling material comprises a first settable material, wherein the second bone filling material comprises a second settable material, and further including accelerating setting of the first settable material in advance of the second settable material.