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Journal of Bone and Joint Surgery - British Volume, Vol 88-B, Issue 1, 120-122.
doi: 10.1302/0301-620X.88B1.16600  
Copyright © 2006 by British Editorial Society of Bone and Joint Surgery
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A comparison of the shrinkage of commercial bone cements when mixed under vacuum

F. N. K. Kwong, MRCSEd, Clinical Research Fellow1; and R. A. Power, FRCSEd(Orth), Orthopaedic Surgeon1

1 Department of Orthopaedics Glenfield Hospital, University Hospitals of Leicester, Groby Road, Leicester LE3 9QP, UK.

Correspondence should be sent to Mr F. N. K. Kwong; e-mail: fcng{at}yahoo.com

The outcome of a cemented hip arthroplasty is partly dependent on the type of cement which is used. The production of an interface gap between the stem and the cement mantle as a result of shrinkage of the cement, may be a factor involved. Palacos R, Palacos LV (both with gentamicin), CMW 1, CMW 2, CMW Endurance (CMWE) and Simplex were prepared under vacuum and allowed to cure overnight in similar cylinders. The next day this volume was determined by the displacement of water. Shrinkage varied between 3.82% and 7.08% with CMWE having the lowest and Palacos LV the highest. This could be a factor to consider when choosing a cement for a shape-closed stem.




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 J Bone Joint Surg BrHome page
K. J. Messick, M. A. Miller, L. A. Damron, A. Race, M. T. Clarke, and K. A. Mann
Vacuum-mixing cement does not decrease overall porosity in cemented femoral stems: AN IN VITRO LABORATORY INVESTIGATION
J Bone Joint Surg Br, August 1, 2007; 89-B(8): 1115 - 1121.
[Abstract] [Full Text] [PDF]


(c) British Editorial Society of Bone and Joint Surgery All Rights Reserved
Registered charity no: 209299     Print ISSN: 0301-620X
Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General