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A comparison of 2 modern femoral cementing techniques: Analysis by cement-bone interface pressure measurements, computerized image analysis, and static mechanical testing

Lookup NU author(s): Professor Andrew McCaskie

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Abstract

Modern cementing techniques aim to improve microinterlock and to reduce aseptic loosening. The Norwegian and Swedish Arthroplasty Registers have shown an increased risk of revision using reduced-viscosity cement. We have compared 2 modern cementing techniques using retrograde insertion of normal- viscosity and reduced-viscosity cements. Laboratory-simulated arthroplasty was performed in paired human femora. Performance was evaluated by measuring pressures generated during cementation, cement penetration, and shear strength of the prosthesis-cement and bone-cement interfaces. Large differences exist between these 2 modern techniques. Despite no statistical differences between the pressure measurements with the 2 techniques, greater penetration of reduced-viscosity cement was found proximally, with a trend toward increased penetration of the more viscous cement distally. Areas of greater cement penetration with reduced-viscosity cement proximally produced higher values of ultimate shear strength. Both techniques showed a progressive increase in the shear strength as the level of the section progressed toward the tip of the prosthesis. There is a trend with both techniques for the distal fixation to be stronger.

Publication metadata

Author(s): McCaskie AW; Reading AD; Barnes MR; Gregg PJ

Publication type: Article

Publication status: Published

Journal: Journal of Arthroplasty

Year: 2000

Volume: 15

Issue: 4

Pages: 479-487

ISSN (print): 0883-5403

ISSN (electronic): 1532-8406

Publisher: Churchill Livingstone

URL: http://dx.doi.org/10.1054/arth.2000.5266

DOI: 10.1054/arth.2000.5266

PubMed id: 10884209

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