Evidence map›Paper›PMID 32982490›Full record

ArticleOrthopedic research and reviews2020

Three Femoral Stem Designs Without Corrosion: A Review of 2095 Stems.

Douglas D R Naudie, Silvio Ndoja, Thomas J Wood, Lyndsay E Somerville, James L Howard, Richard W McCalden, Steven J MacDonald, Brent A Lanting

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Article in Orthopedic research and reviews, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Douglas D R NaudieDivision of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada.ORCID 0000-0002-7099-5619
Silvio NdojaDivision of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada.ORCID 0000-0001-5645-4384
Thomas J WoodDivision of Orthopaedic Surgery, Department of Surgery, Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada.
Lyndsay E SomervilleDivision of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada.
James L HowardDivision of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada.
Richard W McCaldenDivision of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada.
Steven J MacDonaldDivision of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada.ORCID 0000-0001-7838-0603
Brent A LantingDivision of Orthopaedic Surgery, Department of Surgery, London Health Sciences, London, Ontario, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionCorrosion at the head-neck interface of modular components in total hip arthroplasty (THA) has been reported as a cause of failure of modern total hip replacement implants. While this method of failure has been well described, it remains poorly understood. The purpose of this study is to review the three most commonly used uncemented femoral stems at our institution over the last fifteen years and to correlate any established risk factors with rates of revision, particularly corrosion.

methodsWe reviewed 2095 patients from March 2000 to September 2015 who underwent total hip arthroplasty with one of three uncemented femoral stem designs. All stems were made of a Ti6Al4V alloy with a 12/14 taper design. We included only those stems coupled with a CoCr head and a highly crosslinked polyethylene liner. We evaluated age, gender, body mass index (BMI), femoral head size, head length, neck angle and offset and correlated these to the incidence of all cause revision, as well as revision excluding infection.

resultsThere were no recognized corrosion-related revisions identified. There was no association between age, BMI, gender, head length, neck angle and offset to all cause revision or revision with infection excluded (p>0.05). Femoral head size less than 32mm was associated with higher all cause revision rates (OR 4.60 (95% CI 1.8, 11.8)) and when excluding infection as a reason for revision (OR 4.94 (95% CI 1.7, 14.41)).

conclusionOver the last fifteen years, we have not identified any cases of corrosion with the three most commonly used femoral stems used at out institution. While we acknowledge that no femoral stem is immune to corrosion, certain femoral stem designs may be uniquely resistant to this mode of failure. LEVEL OF EVIDENCE: III.

Indexed as

corrosionfemoral stemsrevisiontotal hip arthroplasty

Identifiers

PMID32982490
PMCPMC7509484

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