Effects of particle size and porosity on in vivo remodeling of settable allograft bone/polymer composites.
Effects of particle size and porosity on in vivo remodeling of settable allograft bone/polymer composites.
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DOI:
10.1002/jbm.b.33349
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发表时间:
2015-11
影响因子:
3.4
通讯作者:
Guelcher, Scott A.
中科院分区:
文献类型:
--
作者:
Prieto, Edna M.;Talley, Anne D.;Gould, Nicholas R.;Zienkiewicz, Katarzyna J.;Drapeau, Susan J.;Kalpakci, Kerem N.;Guelcher, Scott A.
Established clinical approaches to treat bone voids include the implantation of autograft or allograft bone, ceramics, and other bone void fillers (BVFs). Composites prepared from lysine-derived polyurethanes and allograft bone can be injected as a reactive liquid and set to yield BVFs with mechanical strength comparable to trabecular bone. In this study, we investigated the effects of porosity, allograft particle size, and matrix mineralization on remodeling of injectable and settable allograft/polymer composites in a rabbit femoral condyle plug defect model. Both low viscosity (LV) and high viscosity (HV) grafts incorporating small (<105 μm) particles only partially healed at 12 weeks, and the addition of 10% demineralized bone matrix did not enhance healing. In contrast, composite grafts with large (105 – 500 μm) allograft particles healed at 12 weeks post-implantation, as evidenced by radial μCT and histomorphometric analysis. This study highlights particle size and surface connectivity as influential parameters regulating the remodeling of composite bone scaffolds.
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DOI:
10.1002/jbm.b.32895
发表时间:
2013-08
影响因子:
3.4
作者:
Coathup, Melanie J.;Cai, Qian;Campion, Charlie;Buckland, Thomas;Blunn, Gordon W.
通讯作者:
Blunn, Gordon W.
影响因子:
9.7
作者:
Page, Jonathan M.;Prieto, Edna M.;Guelcher, Scott A.
通讯作者:
Guelcher, Scott A.
影响因子:
14
作者:
Adhikari, Raju;Gunatillake, Pathiraja A.;Carbone, Tania
通讯作者:
Carbone, Tania
影响因子:
--
作者:
Guelcher, Scott;Srinivasan, Abiraman;Hollinger, Jeffrey
通讯作者:
Hollinger, Jeffrey
影响因子:
4.3
作者:
Pieri, Francesco;Corinaldesi, Giuseppe;Marchetti, Claudio
通讯作者:
Marchetti, Claudio