Preparation and properties of macroporous brushite bone cements
In the present work a macroporous brushite bone cement for use either as an injected or mouldable paste, or in the shape of preformed grafts, has been investigated. Macropores have been introduced by adding to the powder single crystals of mannitol which worked as a porogen. The size of the crystals...
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| Veröffentlicht in: | Acta biomaterialia 2009-07, Vol.5 (6), p.2161-2168 |
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| container_title | Acta biomaterialia |
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| creator | Cama, G. Barberis, F. Botter, R. Cirillo, P. Capurro, M. Quarto, R. Scaglione, S. Finocchio, E. Mussi, V. Valbusa, U. |
| description | In the present work a macroporous brushite bone cement for use either as an injected or mouldable paste, or in the shape of preformed grafts, has been investigated. Macropores have been introduced by adding to the powder single crystals of mannitol which worked as a porogen. The size of the crystals was in the range of 250–500
μm in diameter, suitable for cell infiltration, with a shape ratio between 3 and 6. From compression tests on cylindrical samples an elastic modulus in the range 2.5–4.2
GPa and a compressive strength in the range 17.5–32.6
MPa were obtained for a volume fraction of macropores varying between 15 and 0%. Thus the compressive strength exceeded in all tests the maximum value currently attributed to cancellous bone. |
| doi_str_mv | 10.1016/j.actbio.2009.02.012 |
| format | Article |
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μm in diameter, suitable for cell infiltration, with a shape ratio between 3 and 6. From compression tests on cylindrical samples an elastic modulus in the range 2.5–4.2
GPa and a compressive strength in the range 17.5–32.6
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μm in diameter, suitable for cell infiltration, with a shape ratio between 3 and 6. From compression tests on cylindrical samples an elastic modulus in the range 2.5–4.2
GPa and a compressive strength in the range 17.5–32.6
MPa were obtained for a volume fraction of macropores varying between 15 and 0%. Thus the compressive strength exceeded in all tests the maximum value currently attributed to cancellous bone.</description><subject>Adhesiveness</subject><subject>Animals</subject><subject>Bone cement</subject><subject>Bone Cements - chemistry</subject><subject>Brushite</subject><subject>Cell adhesion</subject><subject>Cell Adhesion - physiology</subject><subject>Cell Line</subject><subject>Compressive Strength</subject><subject>Elastic Modulus</subject><subject>Hardness</subject><subject>Mannitol - chemistry</subject><subject>Materials Testing</subject><subject>Mechanical properties</subject><subject>Mice</subject><subject>Osteoblasts - cytology</subject><subject>Osteoblasts - physiology</subject><subject>Porosity</subject><issn>1742-7061</issn><issn>1878-7568</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU1r3DAQhkVJ6KZJ_0EIPqUnu9Lo05eWEtqkEEgOuQt9jKmWtb2VvIX8-2jZhd42J2ngeWeGeQi5ZrRjlKmv686Fxae5A0r7jkJHGXwgF8xo02qpzFn9awGtpoqtyKdS1pRyw8B8JCvWg5FCqgvy_Tnj1mW3pHlq3BSbbZ63mJeEpZmHZnSh1nOed6XxeVf-pAUbP0_YBBxxWsoVOR_cpuDn43tJXn79fLl7aB-f7n_f_Xhsg5Biab2UkQ3RAPUOgowUB61973vWu4CSuVoCMuARJbLog9IIvjcMfc31_JJ8ObSt6_3dYVnsmErAzcZNWHezPeWKS8V1JW9PkkpzkLLS74FcCGE4iHdBoAq4gP1ocQDrzUrJONhtTqPLr5ZRu3dm1_bgzO6dWQq2Oquxm2P_nR8x_g8dJVXg2wHAeuB_CbMtIeEUMKaMYbFxTqcnvAELBaoq</recordid><startdate>20090701</startdate><enddate>20090701</enddate><creator>Cama, G.</creator><creator>Barberis, F.</creator><creator>Botter, R.</creator><creator>Cirillo, P.</creator><creator>Capurro, M.</creator><creator>Quarto, R.</creator><creator>Scaglione, S.</creator><creator>Finocchio, E.</creator><creator>Mussi, V.</creator><creator>Valbusa, U.</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7QP</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>F28</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope></search><sort><creationdate>20090701</creationdate><title>Preparation and properties of macroporous brushite bone cements</title><author>Cama, G. ; 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Macropores have been introduced by adding to the powder single crystals of mannitol which worked as a porogen. The size of the crystals was in the range of 250–500
μm in diameter, suitable for cell infiltration, with a shape ratio between 3 and 6. From compression tests on cylindrical samples an elastic modulus in the range 2.5–4.2
GPa and a compressive strength in the range 17.5–32.6
MPa were obtained for a volume fraction of macropores varying between 15 and 0%. Thus the compressive strength exceeded in all tests the maximum value currently attributed to cancellous bone.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>19285456</pmid><doi>10.1016/j.actbio.2009.02.012</doi><tpages>8</tpages></addata></record> |
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| subjects | Adhesiveness Animals Bone cement Bone Cements - chemistry Brushite Cell adhesion Cell Adhesion - physiology Cell Line Compressive Strength Elastic Modulus Hardness Mannitol - chemistry Materials Testing Mechanical properties Mice Osteoblasts - cytology Osteoblasts - physiology Porosity |
| title | Preparation and properties of macroporous brushite bone cements |
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