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Related Concept Videos

Types of Cement II01:22

Types of Cement II

494
Portland blast-furnace cement is made by blending Portland cement clinker with granulated blast-furnace slag, which accounts for 25 to 65 percent of the cement's weight. Despite its similarities to ordinary Portland (Type I) cement in terms of fineness and setting times, its early strength is lower, though it achieves comparable strength later on. It's particularly suited for mass concrete structures and marine environments due to its lower heat of hydration and superior sulfate...
494
Types of Cement I01:21

Types of Cement I

433
Portland cement comes in several types, each with distinct properties and applications based on their chemical composition and hydration characteristics:
Type I (Ordinary Portland Cement) is widely used for general construction where special properties are not required. It has moderate sulfate resistance and heat of hydration.
Type II (Modified Cement) offers moderate resistance to sulfate attack and a lower rate of heat development compared to Type I. It is suitable for structures in...
433
Ferrocement01:30

Ferrocement

857
Ferro-cement is a distinctive construction material that represents an innovative variant of reinforced concrete, characterized by its unique composition and the method by which it is formed. Unlike standard reinforced concrete, which relies on larger steel bars for reinforcement, ferro-cement utilizes densely packed layers of mesh or fine rods, fully encased in cement mortar. This composition allows for the creation of structures that are significantly thinner and more flexible than their...
857
Pozzolans01:21

Pozzolans

644
Pozzolans are siliceous or aluminous materials blended with Portland cement. They interact with the calcium hydroxide produced during the hydration of Portland cement and contribute to improved strength and durability of concrete. The pozzolanic activity, a measure of a pozzolan's effectiveness, is typically assessed using the strength activity index, as defined in ASTM C 618-93, which calculates the ratio of the compressive strength of cement mixtures with and without pozzolan.
Fly ash is...
644
Soundness of Cement01:17

Soundness of Cement

626
The soundness of cement refers to the ability of cement paste to retain its volume after setting. Unsound cement can lead to expansion and structural damage due to the presence of free lime, magnesia, and calcium sulfate. Free lime hydrates very slowly, expanding and causing unsoundness, which is difficult to detect because it intercrystallizes with other compounds. Magnesia also reacts with water, forming crystals that can disrupt the cement's structure. Calcium sulfate can create...
626
Preplaced Aggregate Concrete01:29

Preplaced Aggregate Concrete

418
Preplaced aggregate concrete is ideal for construction environments that are not easily accessible. The process begins by properly wetting the gap-graded coarse aggregates to remove the dirt, then placing it in the form and compacting it. Voids are filled with a mortar mix pumped under pressure through slotted pipes. This mortar typically consists of Portland cement, pozzolan, fine aggregates, water, and a fluidizing aid. The pozzolan helps reduce bleeding and segregation while improving the...
418

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Tourniquet Use in Cemented Total Knee Arthroplasty: Small Gains in Fixation, No Clear Benefit in Aseptic Loosening. A Systematic Review and Meta-Analysis.

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Related Experiment Video

Updated: Mar 2, 2026

C-arm-Free Simultaneous OLIF51 and Percutaneous Pedicle Screw Fixation in a Single Lateral Position
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Even "Cementless" Surgeons Use Cement.

A Gulati1, A R J Manktelow1

  • 1Nottingham Elective Orthopaedic Services, Nottingham University Hospitals NHS Trust, Nottingham City Hospital, Nottingham, United Kingdom.

The Journal of Arthroplasty
|May 16, 2017
PubMed
Summary
This summary is machine-generated.

Cemented fixation is a viable option for hip replacements, even in complex cases. Surgeons should consider cemented techniques for primary, complex primary, and revision hip arthroplasty.

Keywords:
cement-in-cementcementedcementlessfixationhip arthroplastyrevision

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Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science

Background:

  • Hip arthritis presents significant anatomical and functional variability.
  • Complexity in hip arthroplasty arises from diverse patient anatomy, bone quality, and expectations.
  • Surgeons must consider various fixation, bearing, and surgical techniques.

Purpose of the Study:

  • To discuss the rationale and methods for using cemented fixation in hip arthroplasty.
  • To highlight the benefits of cemented fixation in primary, complex primary, and revision hip surgeries.
  • To advocate for the consideration of cemented fixation even by surgeons who primarily use cementless methods.

Main Methods:

  • Review of evidence supporting cemented fixation in hip arthroplasty.
  • Discussion of surgical techniques for cemented primary and complex primary hip arthroplasty.
  • Analysis of benefits for revision of previous cemented fixation.

Main Results:

  • Evidence supporting cemented fixation in primary and complex primary hip arthroplasty will be reviewed.
  • Surgical techniques and indications for cemented fixation will be presented.
  • Potential advantages of cemented fixation in revision scenarios will be discussed.

Conclusions:

  • Cemented fixation offers valuable options for hip arthroplasty.
  • Consideration of cemented techniques is recommended for primary, complex primary, and revision hip arthroplasty.
  • Even cementless surgeons may benefit from incorporating cemented fixation into their practice.