ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Self-hardening calcium phosphate cement (CPC) could not be used to repair a largesegmental defect in a load-bearing bone because of its brittleness and weak shock resistance as well asultra-minute pores. Recent studies incorporated fibers into CPC to improve its strength. A novelapproach by rapid prototyping and rapid tool technique (RP/RT) was used in this paper to fabricatefibre-reinforced CPC composite artificial bone. The subsequent mechanical experimentsdemonstrated that the compressive strength of the CPC-fiber artificial bone was 24MPa, which wassignificantly higher than 6MPa for CPC control without fiber. And in-vivo experiment about canineradius repair proved that the implanted CPC-fiber artificial bone enabled to provide short-timereinforced mechanical strength, while the degraded fibers created new macropores for new tissueingrowth. In summary, the CPC-fiber artificial bone may facilitate bone ingrowth and its four timesincrease in strength may help extend the use of CPC to larger bone repairs in moderatelystress-bearing locations
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.532-533.745.pdf
