Cement brand and preparation effects cement-in-cement mantle shear strength

Timothy P. Holsgrove, Alanna Pentlow, Robert F. Spencer, Anthony W. Miles

Research output: Contribution to journalArticle

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Abstract

Creating bi-laminar cement mantles as part of revision hip arthroplasty is well-documented but there is a lack of data concerning the effect of cement brand on the procedure. The aim of this study was compare the shear strength of bi-laminar cement mantles using various combinations of two leading bone cement brands.

Bi-laminar cement mantles were created using Simplex P with Tobramycin, and Palacos R+G: Simplex-Simplex (SS); Simplex-Palacos (SP); Palacos-Simplex (PS); and Palacos-Palacos (PP). Additionally, specimens were produced by rasping (R) the surface of the original mantle, or leaving it unrasped (U), leading to a total of eight groups (n=10). Specimens were loaded in shear, at 0.1 mm/min, until failure, and the maximum shear strength calculated.

The highest mean shear strength was found in the PSU and PSR groups (23.69 and 23.89 MPa respectively), and the lowest in the PPU group (14.70 MPa), which was significantly lower than all but two groups. Unrasped groups generally demonstrated greater standard error than rasped groups.

In a further comparison to assess the effect of the new cement mantle brand, irrespective of the brand of the original mantle, Simplex significantly increased the shear strength compared to Palacos with equivalent preparation.

It is recommended that the original mantle is rasped prior to injection of new cement, and that Simplex P with Tobramycin be used in preference to Palacos R+G irrespective of the existing cement type. Further research is needed to investigate more cement brands, and understand the underlying mechanisms relating to cement on cement procedures.
Original languageEnglish
Pages (from-to)67-71
JournalHip International
Volume25
Issue number1
Early online date17 Jul 2014
DOIs
Publication statusPublished - Jan 2015

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Shear Strength
Methylmethacrylate
Tobramycin
Bone Cements
Arthroplasty
Hip
Injections
Research
Palacos R+G

Keywords

  • revision hip arthroplascty
  • cement on cement

Cite this

Cement brand and preparation effects cement-in-cement mantle shear strength. / Holsgrove, Timothy P.; Pentlow, Alanna; Spencer, Robert F.; Miles, Anthony W.

In: Hip International, Vol. 25, No. 1, 01.2015, p. 67-71.

Research output: Contribution to journalArticle

Holsgrove, Timothy P. ; Pentlow, Alanna ; Spencer, Robert F. ; Miles, Anthony W. / Cement brand and preparation effects cement-in-cement mantle shear strength. In: Hip International. 2015 ; Vol. 25, No. 1. pp. 67-71.
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