In vivo murine model of continuous intramedullary infusion of particles--a preliminary study.
In vivo murine model of continuous intramedullary infusion of particles--a preliminary study.
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DOI:
10.1002/jbm.b.31175
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发表时间:
2009-01
影响因子:
3.4
通讯作者:
Goodman, Stuart B.
中科院分区:
文献类型:
--
作者:
Ma, Ting;Ortiz, Steven G.;Huang, Zhinong;Ren, Peigen;Smith, R. Lane;Goodman, Stuart B.
Continued production of wear debris affects both initial osseointegration and subsequent bone remodeling of total joint replacements (TJRs). However, continuous delivery of clinically relevant particles using a viable, cost effective, quantitative animal model to simulate the scenario in humans has been a challenge for orthopaedic researchers. In this study, we successfully infused blue-dyed polystyrene particles, similar in size to wear debris in humans, to the intramedullary space of the mouse femur for four weeks using an osmotic pump. Approximately 40% of the original particle load (85 ul) was delivered into the intramedullary space, an estimate of 3 × 10 9 particles. The visible blue dye carried by the particles confirmed the delivery. This model demonstrated that continuous infusion of particles to the murine bone-implant interface is possible. In vivo biological processes associated using wear debris particles can be studied using this new animal model.
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