Mechanical Testing for Fretting Corrosion of Modular Total Hip Tapers

2009 ◽  
pp. 156-156-11 ◽  
Author(s):  
CAC Flemming ◽  
SA Brown ◽  
JH Payer
Keyword(s):  
Mechanical Testing ◽  
Fretting Corrosion ◽  
Total Hip

scholarly journals Adverse reaction to metal debris due to fretting corrosion between the acetabular components of modular dual-mobility constructs in total hip replacement: a systematic review and meta-analysis

2021 ◽  
Vol 6 (5) ◽  
pp. 343-353
Author(s):  
Jonathan M. R. French ◽  
Paul Bramley ◽  
Sean Scattergood ◽  
Nemandra A. Sandiford
Keyword(s):  
Systematic Review ◽  
Adverse Reaction ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Meta Analysis ◽  
Fretting Corrosion ◽  
Metal Debris ◽  
Dual Mobility ◽  
Total Hip ◽  
Metal Liner

Modular dual-mobility (MDM) constructs can be used to reduce dislocation rates after total hip replacement (THR). However, there are concerns about adverse reaction to metal debris (ARMD) as a result of fretting corrosion between the metal liner and shell. This systematic review reports outcomes following THR using MDM components. It was registered with PROSPERO and conducted in line with Cochrane and PRISMA recommendations. Sixteen articles were included overall, with meta-analysis performed on relevant subsets using a random intercept logistic regression model. Estimated median incidence of ARMD requiring revision surgery within study follow-up period was 0.3% (95% CI 0.1 – 1.8%, from 11 cohort studies containing 1312 cases). Serum metal ion levels were mildly raised in 7.9% of cases, and significantly raised in 1.8%, but there was no correlation with worse clinical hip function scores within studies. Dislocation rate was 0.8%. Revision rate was 3.3%. There are mixed reports of wear on the backside of the metal liner from the acetabular shell and screw heads. Both implant design and component malseating are implicated, but currently it is unclear to what extent each factor is responsible. Studies were poor quality with high risk of confounding, especially from trunnion corrosion. We have made recommendations for further work. In the meantime, surgeons should be aware of the potential risk of ARMD when considering using an MDM prosthesis, and, if selecting one, must ensure proper seating of the liner and screws intraoperatively. Cite this article: EFORT Open Rev 2021;6:343-353. DOI: 10.1302/2058-5241.6.200146

Modularity of total hip prosthesis and its tribological implications

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Liliana-Laura Badita ◽  
Virgil Florescu ◽  
Constantin Tiganesteanu ◽  
Lucian Capitanu
Keyword(s):  
Femoral Head ◽  
Hip Prosthesis ◽  
Femoral Stem ◽  
Fretting Wear ◽  
Fretting Corrosion ◽  
Content Type ◽  
Hip Prostheses ◽  
Total Hip ◽  
Starting Point ◽  
Modular Prostheses

Purpose The study aims to analyze the fretting phenomenon, manifested at the taper junctions of modular total hip prostheses (THP). Modularity of prostheses implies the micro-movement occurrence. Fractures can arise as a result of the fretting cracking of the prostheses components, affecting durability of modular THPs. Fretting corrosion is associated with the decrease in the clinical acceptance of hip modular implants. Design/methodology/approach Starting from the fretting phenomenon influence on modularity, monoblock THPs and prostheses with modular femoral head recovered from some review surgeries were investigated. Modular prostheses have a taper junction femoral head – femoral stem neck. Investigation consisted in the analysis of fretting wear and fretting corrosion, of the femoral heads’ taper and of the femoral stems’ trunnions. Findings The main result was that the micro-movement that provokes the fretting of the femoral head-femoral stem taper junction analyzed does not have the same direction. It is manifesting in the direction of the axis of the femoral head taper, around this axis or as a composed movement. The authors suspect that this is due to the different design of the taper. In this way, the inclination of the stem’s trunnion into the head hole has a different angular misalignment and may cause greater damages of the taper. Originality/value This result can be a starting point from the improvement of the future taper junctions design that will improve the quality, durability and modularity of THPs.

Accelerated Fretting Corrosion Testing of Modular Necks for Total Hip Arthroplasty

2015 ◽  
pp. 237-258 ◽  
Author(s):  
Satya Nambu ◽  
Richard Obert ◽  
Michael Roark ◽  
Eleonora Delvechhio ◽  
Doug Linton ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Corrosion Testing ◽  
Fretting Corrosion ◽  
Total Hip
Sign in / Sign up

Export Citation Format

Share Document