Malleable paste for filling bone defects

A sterile malleable bone putty composition for application to a bone defect site to promote new bone growth at the site which comprises a new bone growth inducing mixture of demineralized lyophilized allograft bone powder with a particle size ranging from about 100 to about 850 microns in a hyaluronic acid water carrier, the hyaluronic acid component ranging from above 1.0% to about 3% of the carrier solution and having a molecular weight of at least 10.sup.6 Daltons and a viscosity ranging from 6,000 to about 275.000 cps, the bone content of the carrier ranging in weight from about 25% to about 35% total weight of the composition.

A malleable bone putty composition for application to a bone defect site to promote new bone growth at the site comprising a new bone growth inducing demineralized lyophilized allograft bone powder with a particle size ranging from about 100 to about 420 microns in a high molecular weight sodium hyaluronate and water carrier, the bone content of the composition ranging from about 30% to about 35% by weight and the high molecular weight sodium hyaluronate component ranges from about 2% to about 3% of the carrier and has a molecular weight greater than one million Daltons.

A sterile malleable bone putty composition for application to a bone defect site to promote new bone growth at the site which comprises a new bone growth inducing compound of demineralized lyophilized allograft bone powder with a particle size ranging from about 100 to about 420 microns in a N,O-carboxymethylchitosan water carrier solution, the N,O-carboxymethylchitosan component ranging from about 1.0% to about 3% of the carrier weight and having a molecular weight ranging from 2.0.times.10.sup.6 -3.0.times.10.sup.6 Daltons.

A malleable bone putty composition for application to a bone defect site to promote new bone growth at the site which comprises a new bone growth inducing demineralized lyophilized allograft bone powder with a particle size ranging from about 100 to about 850 microns in a high molecular weight chitosan water carrier solution with the bone content of the putty composition ranging from about 30% to about 35% and the chitosan component comprising about 3% of the carrier solution with the chitosan having a molecular weight ranging from about 1.0.times.10.sup.3 to 3.0.times.10.sup.5 Daltons.

A malleable bone gel composition for application to a bone defect site to promote new bone growth at the site which comprises a new bone growth inducing amount of demineralized lyophilized allograft bone powder with a particle size ranging from about 250 to about 850 microns in a high molecular weight hyaluronic acid in water carrier with the hyaluronic acid component comprising about 1% of the carrier and having a molecular weight over 1.0.times.10.sup.6 Daltons, the bone powder content of the composition ranging from about 25% to about 30%.

A malleable bone gel composition for application to a bone defect site to promote new bone growth at the site comprising a new bone growth inducing amount of demineralized lyophilized allograft bone powder with a particle size ranging from about 250 to about 420 microns mixed in a high molecular weight hyaluronic acid water solution carrier with the hyaluronic acid component being present in the amount of about 1% of the carrier and having a viscosity of about 1,800 to 13,000 cps, the bone powder amount content of the composition ranging from about 25% to about 30% by weight.