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"Do not implant!"-Long-term follow-up of a patient who received a trial hip stem

Hirschmann, M. T. and Helfrich, C. and Friederich, N. F.. (2008) "Do not implant!"-Long-term follow-up of a patient who received a trial hip stem. The journal of arthroplasty, Vol. 23 , S. 1239.e19-23.

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Official URL: http://edoc.unibas.ch/dok/A6004273

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Abstract

We describe the case of a patient who had undergone a total hip arthroplasty for primary osteoarthritis 17 years previously. Clinical and radiologic signs of aseptic loosening compelled a revision arthroplasty. Surprisingly, the removed femoral stem turned out to be a trial stem. Retrospective examination of the operative report revealed that at initial surgery the trial stem had become so tightly fixed that it could not be removed. The rectangular-shaped trial stem consisted of the same titanium alloy as the implantable stem, but had been coated with titanium nitride and polished. This coating prevented osseous integration but is also extremely wear resistant and chemically inert in the body environment. Consequently, a long-term "stable" painless anchorage of the prosthesis by mechanical interlocking alone was achieved.
Faculties and Departments:03 Faculty of Medicine > Bereich Operative Fächer (Klinik) > Bewegungsapparat und Integument
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Operative Fächer (Klinik) > Bewegungsapparat und Integument
UniBasel Contributors:Friederich, Niklaus F.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Churchill Livingstone
ISSN:0883-5403
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:07 Jun 2018 14:07
Deposited On:07 Dec 2012 12:59

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