A bone repair composition wherein said composition is: a bone repair putty comprising: (i) from 25% to 65% (w/w) hydroxyapatite particles having a mean particle size of from 100 μm to 1000 μm; (ii) from 30% to 75% (w/w) hydrogel carrier for suspending said hydroxyapatite particles; and (iii) from 0.2% to 2% (w/w) fibers, said fibers having an average length of from 0.5 to 15 mm and an average diameter of from 5 μm to 60 μm, wherein said fibers are selected from silk fibers, cellulose fibers, nylon fibers, collagen fibers, elastin fibers, gelatin fibers, keratin fibers, hyaluronan fibers, alginate fibers, glyco-lactide fibers, chitosan fibers, polyethylene fibers, polyurethane fibers, polyglycolide fibers, poly-1-lactide fibers, poly-β-hydroxybutyric acid fibers, polydioxanone fibers, polyester fibers, polycarbonate fibers, dacron fibers, bio-active glass fibers, gold fibers, carbon fibers, nitinol fibers, and stainless steel fibers, and wherein said bone repair putty is non-setting and malleable and wherein the ratio of the number of hydroxyapatite particles to the number of fibers in said putty is from 0.1 to 10, or a pliable implantable composition for correcting bone defects formed by lyophilizing the bone repair putty of. a bone repair putty comprising: (i) from 25% to 65% (w/w) hydroxyapatite particles having a mean particle size of from 100 μm to 1000 μm; (ii) from 30% to 75% (w/w) hydrogel carrier for suspending said hydroxyapatite particles; and (iii) from 0.2% to 2% (w/w) fibers, said fibers having an average length of from 0.5 to 15 mm and an average diameter of from 5 μm to 60 μm, wherein said fibers are selected from silk fibers, cellulose fibers, nylon fibers, collagen fibers, elastin fibers, gelatin fibers, keratin fibers, hyaluronan fibers, alginate fibers, glyco-lactide fibers, chitosan fibers, polyethylene fibers, polyurethane fibers, polyglycolide fibers, poly-1-lactide fibers, poly-β-hydroxybutyric acid fibers, polydioxanone fibers, polyester fibers, polycarbonate fibers, dacron fibers, bio-active glass fibers, gold fibers, carbon fibers, nitinol fibers, and stainless steel fibers, and wherein said bone repair putty is non-setting and malleable and wherein the ratio of the number of hydroxyapatite particles to the number of fibers in said putty is from 0.1 to 10, or (i) from 25% to 65% (w/w) hydroxyapatite particles having a mean particle size of from 100 μm to 1000 μm; (ii) from 30% to 75% (w/w) hydrogel carrier for suspending said hydroxyapatite particles; and (iii) from 0.2% to 2% (w/w) fibers, said fibers having an average length of from 0.5 to 15 mm and an average diameter of from 5 μm to 60 μm, wherein said fibers are selected from silk fibers, cellulose fibers, nylon fibers, collagen fibers, elastin fibers, gelatin fibers, keratin fibers, hyaluronan fibers, alginate fibers, glyco-lactide fibers, chitosan fibers, polyethylene fibers, polyurethane fibers, polyglycolide fibers, poly-1-lactide fibers, poly-β-hydroxybutyric acid fibers, polydioxanone fibers, polyester fibers, polycarbonate fibers, dacron fibers, bio-active glass fibers, gold fibers, carbon fibers, nitinol fibers, and stainless steel fibers, and wherein said bone repair putty is non-setting and malleable and wherein the ratio of the number of hydroxyapatite particles to the number of fibers in said putty is from 0.1 to 10, or a pliable implantable composition for correcting bone defects formed by lyophilizing the bone repair putty of.