Germanium-based glass polyalkenoate cement

A method of augmenting bone, comprising:

• injecting a cement into a bone of a subject, the cement comprising a mixture of:
• (a) an acid degradable glass powder comprising:
• 0.1-0.75 mole fraction GeO2;
• 0.11-0.53 mole fraction ZnO;
• and
• 0.02-0.48 mole fraction SiO2;
• wherein the acid degradable glass powder comprises no more than 0.01 mole fraction aluminosilicates, and
• (b) an aqueous solution of about 40% to about 60% by weight of a polyalkenoic acid that has a weight average molecular weight (Mw) of about 1,150 to about 1,500,000,
• wherein the acid degradable glass powder and the aqueous solution are in a ratio of about 2:1 to about 1:1 (w:w).