The influence of cement viscosity on the early migration of a tapered polished femoral stem

It is unclear whether it is best to use high-viscosity or low-viscosity cement for fixation of total hip replacement (THR) femoral components. This study examines the influence of cement viscosity on the migration of the Exeter femoral component using roentgen stereophotogrammetric analysis (RSA). S...

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Bibliographic Details
Published in:International orthopaedics 2003, Vol.27 (6), p.362-365
Main Authors: GLYN-JONES, S, HICKS, J, ALFARO-ADRIAN, J, GILL, H. S, MCLARDY-SMITH, P, MURRAY, D. W
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Analysis of Variance
Arthroplasty, Replacement, Hip
Biological and medical sciences
Biomechanical Phenomena
Bone Cements
Diseases of the osteoarticular system
Female
Humans
Male
Medical sciences
Middle Aged
Original Paper
Photogrammetry
Prosthesis Failure
Registries
Surface Properties
Treatment Outcome
Viscosity
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Summary:It is unclear whether it is best to use high-viscosity or low-viscosity cement for fixation of total hip replacement (THR) femoral components. This study examines the influence of cement viscosity on the migration of the Exeter femoral component using roentgen stereophotogrammetric analysis (RSA). Simplex, CMW1 and CMW3 G cements were examined in a total of 46 patients over a 12-month period. The overall pattern of migration for all cohorts was one of subsidence and rotation into valgus. There was no significant difference in any aspect of migration between the groups. In vitro studies demonstrate that low-viscosity cement forms a more stable bone-cement interface. Several groups have examined the in vivo effect of cement viscosity on stem longevity with conflicting results. For a polished, tapered implant that is designed to subside, cement viscosity does not influence the 1-year migration, and it is therefore unlikely to affect long-term outcome.
ISSN:0341-2695
1432-5195
DOI:10.1007/s00264-003-0500-7