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April 10, 2026Proceedings of the Institution of Mechanical Engineers Part H Journal of Engineering in MedicineOpen Access

Impacts of mixing techniques and vacuum levels on the structural and mechanical properties of PMMA bone cement: A comparative study

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Authors

HBHarry BarrattUniversity of LeedsHTHarry TemplemanCheltenham FestivalsKNKarthik NairCheltenham Festivals

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Implication

Comparative study finds that vacuum mixing reduces porosity in PMMA cement, suggesting improved clinical outcomes.

Key Points

  • This research aims to understand how mixing techniques and vacuum levels affect PMMA bone cement properties.
  • Evaluated three mixing techniques: open bowl, vacuum bowl, and vacuum cartridge.
  • Measured vacuum levels ranging from 0 to 650 mm Hg.
  • Assessed porosity using high-resolution micro-computed tomography (µCT).
  • Determined mechanical properties through compressive testing following ISO 5833:2002.
  • Higher vacuum levels significantly reduced porosity, especially with the vacuum cartridge system.
  • A strong negative correlation (R² = 0.864) between compressive strength and porosity was found.
  • No consistent changes in Young's modulus were observed across different mixing approaches.
  • Specimen mass did not predict mechanical performance.

Cite This Study

Barratt et al. (2026) studied this question.

synapsesocial.com/papers/69d893406c1944d70ce0447chttps://doi.org/10.1177/09544119261436611
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Strength of polymethylmethacrylate increased by vacuum mixing1984 · 101 citations
  2. 2Influence of Porosity on Fracture Toughness and Fracture Behavior of Antibiotic-Loaded PMMA Bone Cement2021 · 13 citations
  3. 3Is there any difference between vacuum mixing systems in reducing bone cement porosity?1996 · 62 citations
  4. 4Development of operator independent bone cement vacuum mixing system for joint replacement surgery2006 · 6 citations
  5. 5A fractographic investigation of PMMA bone cenent focusing on the relationship between porosity reduction and increased fatigue life1992 · 132 citations