The Benefit of Vacuum Mixing

Wang, Jiansheng

doi:10.1007/3-540-28924-0_12

Cited by 2 publications

(2 citation statements)

References 60 publications

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“…Although well established as a bone surrogate in this type of research [18, 30, 36], PVC tube may alter the peak temperature of the curing cement when compared to bone with active circulation. Most clinical implants do not fail by single exposure of high forces.…”

Section: Limitationsmentioning

confidence: 99%

Cement-Implant Interface Contamination: Possible Reason of Inferior Clinical Outcomes for Rough Surface Cemented Stems

Tian¹,

Pelletier²,

Bertollo³

et al. 2013

TOORTHJ

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Background:Shape-closed cemented implants rely on a stronger bond and have displayed inferior clinical outcomes when compared to force-closed designs. Implant contamination such as saline, bone marrow and blood prior to cement application has the potential to affect the cement-implant bond. The consequences of implant contamination were investigated in this study.Methods:Fifty Titanium alloy (Ti-6Al-4V) dowels were separated into ten groups based on surface roughness and contaminant, and then cemented in polyvinyl chloride tubes. Push-out testing was performed at 1mm per minute. The roughness of the dowel surface was measured before and after the testing. The dowel surface and cement mantel were analyzed using a Scanning Electron Microscopy (SEM) to determine the distribution and characteristics of any debris and contaminants on the surface.Results:Contaminants largely decreased stem-cement interfacial shear strength, especially for rough surfaces. Saline produced the greatest decrease, followed by blood. The effect of bone marrow was less pronounced and similar to that of oil. Increasing surface roughness increased the interfacial bonding strength, even with contaminants. There was a non-significant increase in mean bonding strength for smooth surfaces with bone marrow and oil contamination. SEM showed that contaminants influence the interfacial bond by different mechanisms. More debris was found on rough samples following testing.Conclusions:The results of this study underscore the importance of keeping an implant free from contamination, and suggest if contamination does occur, a saline rinse may further decrease the stability of an implant. The deleterious effects of contamination on rough surface cement bonding were considerable, and indicate that contamination at the time of surgery may, in part, contribute to inferior clinical outcomes for rough surfaced cemented stems.

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Section: Limitationsmentioning

confidence: 99%

Cement-Implant Interface Contamination: Possible Reason of Inferior Clinical Outcomes for Rough Surface Cemented Stems

Tian¹,

Pelletier²,

Bertollo³

et al. 2013

TOORTHJ

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“…When bone cement was first introduced in arthroplasty, PMMA was hand-mixed in a bowl. In addition to constituting an occupational hazard by releasing cytotoxic monomers into the air, this mixing method led to higher porosity through air entrapment, consequently affecting the mechanical strength and fatigue life of cement, with pores acting as a site for crack propagation 47,48 . As such, vibration, centrifugation, and vacuum mixing techniques were introduced with the aim to reduce cement porosity and, thereby, improve the mechanical properties.…”

Section: Mixing Technique and Porositymentioning

confidence: 99%

Femoral Stem Cementation in Primary Total Hip Arthroplasty

et al. 2022

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Femoral stem cementation has undergone considerable investigation since bone cement was first used in arthroplasty, leading to the evolution of modern femoral stem cementation techniques. » Although there is a worldwide trend toward the use of cementless components, cemented femoral stems have shown superiority in some studies and have clear indications in specific populations. Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (http://links.lww.com/JBJSREV/A863).

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The Benefit of Vacuum Mixing

Cited by 2 publications

References 60 publications

Cement-Implant Interface Contamination: Possible Reason of Inferior Clinical Outcomes for Rough Surface Cemented Stems

Cement-Implant Interface Contamination: Possible Reason of Inferior Clinical Outcomes for Rough Surface Cemented Stems

Femoral Stem Cementation in Primary Total Hip Arthroplasty

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