scholarly journals Bone Cement Formulation with Reduced Heating of Bone Cement Resin

2021 ◽  
Author(s):  
M.ozgur SEYDİBEYOGLU ◽  
Muserref CAKA ◽  
Fulden ULUCAN-KARNAK ◽  
Günnur ONAK ◽  
Ataç UZEL ◽  
...  
Keyword(s):  
Bone Cement ◽  
Cement Formulation

scholarly journals Damage Evolution and Fracture Events Sequence Analysis of Core-Shell Nanoparticle Modified Bone Cements by Acoustic Emission Technique

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 208
Author(s):  
O.F. Pacheco-Salazar ◽  
Shuichi Wakayama ◽  
L.A. Can-Herrera ◽  
M.A.A. Dzul-Cervantes ◽  
C.R. Ríos-Soberanis ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Bone Cement ◽  
Solid Phase ◽  
Bending Test ◽  
Fracture Mechanisms ◽  
Core Shell ◽  
Bone Cements ◽  
Four Point Bending ◽  
Ae Signals ◽  
Cement Formulation

In this research, damage in bone cements that were prepared with core-shell nanoparticles was monitored during four-point bending tests through an analysis of acoustic emission (AE) signals. The core-shell structure consisted of poly(butyl acrylate) (PBA) as rubbery core and methyl methacrylate/styrene copolymer (P(MMA-co-St)) as a glassy shell. Furthermore, different core-shell ratios 20/80, 30/70, 40/60, and 50/50 were prepared and incorporated into the solid phase of the bone cement formulation at 5, 10, and 15 wt %, respectively. The incorporation of a rubbery phase into the bone cement formulation decreased the bending strength and bending modulus. The AE technique revealed that the nanoparticles play an important role on the fracture mechanism of the bone cement, since a higher amount of AE signals (higher amplitude and energy) were obtained from bone cements that were prepared with the nanoparticles in comparison with those without nanoparticles (the reference bone cement). The SEM examination of the fracture surfaces revealed that all of the bone cement formulations exhibited stress whitening, which arises from the development of crazes before the crack propagation. Finally, the use of the AE technique and the fracture surface analysis by SEM enabled insight into the fracture mechanisms that are presented during four-point bending test of the bone cement containing nanoparticles.

scholarly journals An Approach for Determining Antibiotic Loading for a Physician-directed Antibiotic-loaded PMMA Bone Cement Formulation

2010 ◽  
Vol 468 (8) ◽  
pp. 2092-2100 ◽  
Author(s):  
Gladius Lewis ◽  
Jennifer L. Brooks ◽  
Harry S. Courtney ◽  
Yuan Li ◽  
Warren O. Haggard
Keyword(s):  
Bone Cement ◽  
Pmma Bone Cement ◽  
Cement Formulation

Improved Orthopaedic Bone Cement Formulations Based on Rubber Toughening

2000 ◽  
Vol 28 (3-4) ◽  
pp. 457-461 ◽  
Author(s):  
Aaron D. Puckett ◽  
Brad Roberts ◽  
Lujia Bu ◽  
Jimmy W. Mays
Keyword(s):  
Bone Cement ◽  
Rubber Toughening

Stress distribution in a femoral implant with and without bone cement and at different inclination angles

2018 ◽  
Vol 60 (4) ◽  
pp. 393-398
Author(s):  
Murat Yavuz Solmaz ◽  
Ismail Hakki Sanliturk ◽  
Aydin Turgut ◽  
Serkan Dundar ◽  
Tolga Topkaya
Keyword(s):  
Stress Distribution ◽  
Bone Cement ◽  
Inclination Angles

Study on Preparation and Properties of Self-setting Silicon Hydroxyapatite Bone Cement

2011 ◽  
Vol 26 (1) ◽  
pp. 55-60 ◽  
Author(s):  
Jia-Can SU ◽  
Lie-Hu CAO ◽  
Bao-Qing YU ◽  
Zhi-Wei WANG ◽  
Ming LI
Keyword(s):  
Bone Cement

Antibiotic Distribution in a Bone Cement Spacer Model

2007 ◽  
Vol 17 (4) ◽  
pp. 218-223 ◽  
Author(s):  
K. Shiramizu ◽  
V. Lovric ◽  
A.M.D. Leung ◽  
W.R. Walsh
Keyword(s):  
Liquid Phase ◽  
Bone Cement ◽  
Cross Sections ◽  
High Dose ◽  
Cement Spacer ◽  
Traditional Technique ◽  
Low Viscosity ◽  
Significant Difference ◽  
Group A ◽  
Medium Viscosity

Purpose To mix high dose antibiotic powder to the bone cement more easily, Hanssen et al reported mixing the antibiotics with the cement during its liquid phase but made no comments about the relevance of cement viscosity and antibiotic distribution. The purpose of this study was to investigate the effect of the cement mixing technique and cement viscosity on the antibiotics distribution in a cement spacer model. Methods Thirty cylindrical models from three groups were examined. Group A was made by mixing the antibiotics with medium viscosity cement prior to adding the liquid monomer (traditional technique). Group B was made by mixing the antibiotics with medium viscosity cement during its liquid phase (Hanssen's technique). Group C was made by traditional technique with low viscosity cement. In all groups 2 g of tetracycline was used. Three 0.1 mm thick cross sections from each spacer model were examined under the fluorescent microscope. The fluorescent spots of tetracycline were calculated automatically in pixels. To evaluate the distribution of the antibiotics in the spacer model, we selected the cross section with the highest number of pixels and the one with the lowest number of pixels from each of the three cross sections and calculated the difference between them. The distribution disequilibrium was compared between group A and B, A and C. Results No significant difference was observed in either comparison. Conclusion The Hanssen's mixing technique can be used when using high dose antibiotics, and either medium or low viscosity cement could be used in terms of antibiotic distribution.

scholarly journals Influence of bone cement distribution on outcomes following percutaneous vertebroplasty: a retrospective matched-cohort study

2021 ◽  
Vol 49 (7) ◽  
pp. 030006052110222
Author(s):  
Ling Mo ◽  
Zixian Wu ◽  
De Liang ◽  
Linqiang Y ◽  
Zhuoyan Cai ◽  
...  
Keyword(s):  
Cohort Study ◽  
Bone Cement ◽  
Percutaneous Vertebroplasty ◽  
Vertebral Compression Fractures ◽  
Matched Cohort ◽  
Matched Cohort Study ◽  
Cement Distribution ◽  
Group A ◽  
Group B

Objective To evaluate the influence of insufficient bone cement distribution on outcomes following percutaneous vertebroplasty (PVP). Methods This retrospective matched-cohort study included patients 50–90 years of age who had undergone PVP for single level vertebral compression fractures (VCFs) from February 2015 to December 2018. Insufficient (Group A)/sufficient (Group B) distribution of bone cement in the fracture area was assessed from pre- and post-operative computed tomography (CT) images. Assessments were before, 3-days post-procedure, and at the last follow-up visit (≥12 months). Result Of the 270 eligible patients, there were 54 matched pairs. On post-operative day 3 and at the last follow-up visit, significantly greater visual analogue scale (VAS) pain scores and Oswestry Disability Index (ODI) scores were obtained in Group B over Group A, while kyphotic angles (KAs) and vertebral height (VH) loss were significantly larger in Group A compared with Group B. Incidence of asymptomatic cement leakage and re-collapse of cemented vertebrae were also greater in Group A compared with Group B. Conclusions Insufficient cement distribution may relate to less pain relief and result in progressive vertebral collapse and kyphotic deformity post-PVP.

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