The present invention provides an enhanced osteogenic composition comprising of connective tissue proteins having molecular weights greater than or equal to 3.5 kDa wherein the composition is prepared by treating demineralized bone material in an acidic extraction medium at a pH between about 0.10 to 0.45 at an extraction temperature between greater than 25° C. and less than 80° C. for a predetermined time period. The present invention further provides a method of making the enhanced osteogenic composition.

A malleable demineralized bone composition consists of cortical bone made from a first portion and a second portion. The first portion of cortical bone is made from cut pieces freeze dried then ground into particles and demineralized then freeze-dried. The second portion of cortical bone is shaved into shavings. The shavings are long thin strips subjected to freeze-drying. The freeze-dried shavings are ground and demineralized and then freeze-dried. A volume of the second portion is placed in a solution of sterile water to create a mixture, the water volume being twice the second portion, the mixture is autoclaved under heat and pressure to form a gelatin, and the first portion is mixed with the gelatin to form a malleable putty or paste.

A bone gel composition consists of cortical bone. The cortical bone is made from cut pieces freeze-dried then ground into particles and demineralized then freeze-dried. A volume of the particles is placed in a solution of sterile water to create a mixture, the water volume being at least twice the particle volume, the mixture is autoclaved under heat and pressure to form a gelatin, the resulting bone gel is formed into sheets having a thickness (t).

A bone gel composition consists of cortical bone. The cortical bone is made from cut pieces freeze-dried then ground into particles and demineralized then freeze-dried. A volume of the particles is placed in a solution of sterile water to create a mixture, the water volume being twice the second portion, the mixture is autoclaved under heat and pressure to form a gelatin, the resulting bone gel is placed in jars and kept at room temperature or frozen for later use. The cortical bone has the cut pieces having a width, a length and a thickness in the range of 1 to 4 mm The cortical bone pieces are ground to a particle size up to 125 microns.

A moldable bone composition consists of a mixture of: cortical bone and cancellous bone. The cortical bone is formed in three portions, a mineralized shaving portion and a demineralized shaving portion and a mineralized powder portion. The cancellous bone is formed in a mineralized crushed cancellous portion. The portions are free-dried and mixed together to form a freeze-dried moldable bone composition.

Methods of forming a connective tissue-to-bone interface scaffolds (e.g., ligament-to-bone interface scaffolds, tendon-to-bone interface scaffolds, etc.). These scaffolds (grafts) may be formed from in such a way as to provide both a mineralized and demineralized layer in which the entire graft is flexible, compressible and compliant.

Adult autologous stem cells cultured on a porous, three-dimensional tissue scaffold-implant for bone regeneration by the use of a hyaluronan and/or dexamethasone to accelerate bone healing alone or in combination with recombinant growth factors or transfected osteogenic genes. The scaffold-implant may be machined into a custom-shaped three-dimensional cell culture system for support of cell growth, reservoir for peptides, recombinant growth factors, cytokines and antineoplastic drugs in the presence of a hyaluronan and/or dexamethasone alone or in combination with growth factors or transfected osteogenic genes, to be assembled ex vivo in a tissue incubator for implantation into bone tissue.

Provided is an implantable composite which includes a plurality of resorbable ceramic particles with or without a biodegradable polymer. The resorbable ceramic particles can be granules including carbonated hydroxyapatite and tricalcium phosphate in a ratio of 5:95 to 70:30. Some resorbable ceramic particles are granules, which include carbonated hydroxyapatite and β tricalcium phosphate in a ratio of 5:95 to 70:30. The resorbable ceramic particles have a particle size from about 0.4 to about 3.5 mm. The implantable composite is configured to tit at or near a bone defect as an autograft extender to promote bone growth. Methods of using the implantable composite are also provided.

A bone gel composition consists of cortical bone. The cortical bone is made from cut pieces freeze-dried then ground into particles and demineralized then freeze-dried. A volume of the particles is placed in a solution of sterile water to create a mixture, the water volume being at least twice the particle volume, the mixture is autoclaved under heat and pressure to form a gelatin, the resulting bone gel is formed into sheets having a thickness (t).

Biological-based polyurethanes and methods of making the same. The polyurethanes are formed by reacting a biodegradable polyisocyanate (such as lysine diisocyanate) with an optionally hydroxylated biomolecule to form polyurethane. The polymers formed may be combined with ceramic and/or bone particles to form a composite, which may be used as an osteoimplant.