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Porosity of neat and composite bone cement mantles. 2008

Craig L Hansen, and David A McQueen, and Elizabeth A Friis, and Francis W Cooke, and Christopher W Widenhouse
Department of Surgery, Section of Orthopaedics, University of Kansas School of Medicine-Wichita, Wichita, Kansas, USA.

The effect of fiber additions to bone cement on femoral cement mantle porosity was determined. Eighteen porcine femurs were implanted with a cemented prosthesis. Three cement types were used: as-received cement, cement with untreated polyethylene terephthalate fibers, and cement with treated polyethylene terephthalate fibers. Radiographs revealed all cement mantles as grade B, with slight radiolucency at the cement-bone interface. The cement mantles were sectioned at 7 levels, and porosity was measured at each level. All specimens had similar porosities, with an overall mean percentage of porosity of 3.3%+/-2.2% and a mean pore count of 208+/-160 per section. The high pore count and porosity were not visible on the standard clinical radiographs.

UI MeSH Term Description Entries
D011093 Polyethylene Terephthalates Polyester polymers formed from terephthalic acid or its esters and ethylene glycol. They can be formed into tapes, films or pulled into fibers that are pressed into meshes or woven into fabrics. Dacron,Nalophan,PET Polymer,Poly(Ethylene Terephtalate),Polyethylene Terephthalate,Tedlar,Dacrons,Nalophans,PET Polymers,Tedlars,Terephthalate, Polyethylene,Terephthalates, Polyethylene
D001843 Bone Cements Adhesives used to fix prosthetic devices to bones and to cement bone to bone in difficult fractures. Synthetic resins are commonly used as cements. A mixture of monocalcium phosphate, monohydrate, alpha-tricalcium phosphate, and calcium carbonate with a sodium phosphate solution is also a useful bone paste. Bone Cement,Bone Glues,Bone Pastes,Bone Glue,Bone Paste,Cement, Bone,Cements, Bone,Glue, Bone,Glues, Bone,Paste, Bone,Pastes, Bone
D006622 Hip Prosthesis Replacement for a hip joint. Femoral Head Prosthesis,Femoral Head Prostheses,Hip Prostheses,Prostheses, Femoral Head,Prostheses, Hip,Prosthesis, Femoral Head,Prosthesis, Hip
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013552 Swine Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA). Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog
D016062 Porosity Condition of having pores or open spaces. This often refers to bones, bone implants, or bone cements, but can refer to the porous state of any solid substance. Porosities
D019644 Arthroplasty, Replacement, Hip Replacement of the hip joint. Hip Prosthesis Implantation,Hip Replacement, Total,Total Hip Arthroplasty,Arthroplasties, Hip Replacement,Arthroplasties, Replacement, Hip,Arthroplasty, Hip Replacement,Hip Replacement Arthroplasties,Hip Replacement Arthroplasty,Replacement Arthroplasties, Hip,Replacement Arthroplasty, Hip,Replacement, Total Hip,Total Hip Replacement,Arthroplasty, Total Hip,Hip Arthroplasty, Total,Hip Prosthesis Implantations,Implantation, Hip Prosthesis,Prosthesis Implantation, Hip,Total Hip Arthroplasties,Total Hip Replacements

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