» Articles » PMID: 24046084

Direct and Interactive Influence of Explanatory Variables on Properties of a Calcium Phosphate Cement for Vertebral Body Augmentation

Overview
Publisher Springer
Date 2013 Sep 19
PMID 24046084
Citations 1
Authors
Affiliations
Soon will be listed here.
Abstract

We used the response surface methodology to investigate the direct and interactive effects of three explanatory variables on three properties of a calcium phosphate cement (CPC) for use in vertebroplasty (VP) and balloon kyphoplasty (BKP). The variables were poly(ethylene glycol) content of the cement liquid (PEG), powder-to-liquid ratio (PLR), and the amount of Na2HPO4 added to an aqueous solution of 4 wt/wt% poly(acrylic acid) (as the cement liquid) (SPC). The properties were injectability (I), final setting time (F), and 5-day compressive strength (UCS). We found that (1) there was an interactive effect between the variables on I and F but not on UCS; (2) the maximum I (98%) was obtained with PEG = 20 wt/wt% and PLR = 2 g mL(-1); (3) F = 15 min (the proposed optimum value for a CPC for use in VP and BKP) was obtained with PEG = 4 wt/wt% and PLR = 2.9 g mL(-1); and (4) the maximum UCS (39 MPa) was obtained with SPC = 0 and PLR = 3.5 g mL(-1).

Citing Articles

Optimisation of a two-liquid component pre-filled acrylic bone cement system: a design of experiments approach to optimise cement final properties.

Clements J, Walker G, Pentlavalli S, Dunne N J Mater Sci Mater Med. 2014; 25(10):2287-96.

PMID: 25005558 DOI: 10.1007/s10856-014-5260-y.

References
1.
Barralet J, Gaunt T, Wright A, Gibson I, Knowles J . Effect of porosity reduction by compaction on compressive strength and microstructure of calcium phosphate cement. J Biomed Mater Res. 2002; 63(1):1-9. DOI: 10.1002/jbm.1074. View

2.
Perez R, Kim H, Ginebra M . Polymeric additives to enhance the functional properties of calcium phosphate cements. J Tissue Eng. 2012; 3(1):2041731412439555. PMC: 3324842. DOI: 10.1177/2041731412439555. View

3.
Gbureck U, Spatz K, Thull R, Barralet J . Rheological enhancement of mechanically activated alpha-tricalcium phosphate cements. J Biomed Mater Res B Appl Biomater. 2005; 73(1):1-6. DOI: 10.1002/jbm.b.30148. View

4.
Burguera E, Guitian F, Chow L . Effect of the calcium to phosphate ratio of tetracalcium phosphate on the properties of calcium phosphate bone cement. J Biomed Mater Res A. 2007; 85(3):674-83. DOI: 10.1002/jbm.a.31478. View

5.
Miyamoto Y, Toh T, Ishikawa K, Yuasa T, Nagayama M, Suzuki K . Effect of added NaHCO3 on the basic properties of apatite cement. J Biomed Mater Res. 2001; 54(3):311-9. DOI: 10.1002/1097-4636(20010305)54:3<311::aid-jbm10>3.0.co;2-h. View