scholarly journals Wear and corrosion at the taper interface in retrieved ASR Xl metal-on-metal total hip arthroplasty

2012 ◽  
Vol 10 (8) ◽  
pp. S55
Author(s):  
Adam Hexter ◽  
Anna Panagiotidou ◽  
Gordon Blunn ◽  
Johann Henckel ◽  
John Skinner ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Wear And Corrosion ◽  
Metal On Metal

Modular junction may be more problematic than bearing wear in metal-on-metal total hip arthroplasty

2018 ◽  
Vol 29 (3) ◽  
pp. 262-269 ◽  
Author(s):  
Pascal-André Vendittoli ◽  
Vincent Massé ◽  
Marc-Olivier Kiss ◽  
Daniel Lusignan ◽  
Martin Lavigne
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Metal Ion ◽  
Modular Group ◽  
Group Versus ◽  
Femoral Stem ◽  
Total Hip ◽  
Wear And Corrosion ◽  
Metal On Metal ◽  
Metal Ion Release

Introduction: In total hip arthroplasty (THA), local adverse reaction to metal debris (ARMD) may be caused by abnormal metal ion release from a metal-on-metal (MoM) bearing, or by wear and corrosion of the implant’s modular junction. The aim of this study was to compare ion levels and rate of ARMD between patients sharing the same MoM bearing but 1 group having monoblock stems versus another having modular stems. Materials and methods: Whole blood cobalt (Co) and chromium (Cr) ion concentrations, ARMD rate, revision rate, and function measured by UCLA and WOMAC scores were compared between groups. Results: ARMD rate was significantly higher in the modular group (46%) compared with the monoblock group (16%, p = 0.031). Revision for ARMD was performed at 52.8 ± 8.1 months in the modular group versus 98.2 ± 15.5 months after primary THA in the monoblock group. ARMD originated from wear and corrosion of the junction between stem and femoral head adapter sleeve in all monoblock cases, and the junction between stem and modular neck in all the modular ones. Cr and Co ions levels were significantly higher in the modular stem group ( p < 0.001 for both). Conclusions: Although both groups had MoM bearings, corrosion at stem/neck or neck/head junctions combining dissimilar metal (Ti and Cr-Co) was seen as the source of excess metal ions release leading to ARMD. Poor performance of the modular junction may be more deleterious than wear of the bearing. To avoid such complications, THA femoral stem modular junctions should be eliminated (return to a full monoblock implant) or have improved junction design.

scholarly journals Small-head metal on metal total hip arthroplasty is associated with a high rate of complication and reoperation at mid-term follow-up

2021 ◽  
Vol 9 ◽  
pp. 205031212110147
Author(s):  
Nobuhiko Sumiyoshi ◽  
Kazuhiro Oinuma ◽  
Yoko Miura
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Adverse Reactions ◽  
Small Diameter ◽  
High Rate ◽  
Metal Debris ◽  
Total Hip ◽  
Metal On Metal ◽  
Small Head

Background: Adverse reactions to metal debris are significant complications after metal-on-metal total hip arthroplasty. Recently, late appearances of adverse reactions to metal debris and subsequent need for reoperations have been reported with small-diameter head metal-on-metal devices. We retrospectively investigated mid-term clinical outcomes of small-head metal-on-metal total hip arthroplasty. Methods: We reviewed 159 hips in 139 patients who had a small-head metal-on-metal total hip arthroplasty (M2a Taper; Biomet, Warsaw, IN) with a minimum 5-year follow-up and documented postoperative complications. Results: Focal osteolysis in either the femur or acetabulum was observed in 12 hips (7.5%, 44 months after surgery on average), with pseudotumor observed in 8 hips (5%, 120 months after surgery on average). Four hips (2.5%) had dislocations (84 months after surgery on average) and six hips (3.8%, 122 months after surgery on average) underwent reoperation. Conclusion: Small-head metal-on-metal total hip arthroplasty is associated with a high degree of complications at mid-term follow-up period. Considering this, we discourage the use of metal-on-metal total hip arthroplasty regardless of head size.

scholarly journals A case of bone necrosis with pseudotumor following metal-on-metal total hip arthroplasty

2018 ◽  
Vol 4 (3) ◽  
pp. 291-294
Author(s):  
Masahiro Hasegawa ◽  
Hiroki Wakabayashi ◽  
Akihiro Sudo
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Bone Necrosis ◽  
Total Hip ◽  
Metal On Metal

scholarly journals No association between serum metal ions and implant fixation in large-head metal-on-metal total hip arthroplasty

2014 ◽  
Vol 85 (4) ◽  
pp. 355-362 ◽  
Author(s):  
Mette Holm Hjorth ◽  
Kjeld Søballe ◽  
Stig Storgaard Jakobsen ◽  
Nina Dyrberg Lorenzen ◽  
Inger Mechlenburg ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Metal Ions ◽  
Hip Arthroplasty ◽  
Implant Fixation ◽  
Total Hip ◽  
Large Head ◽  
Metal On Metal

scholarly journals The influence of bearing surfaces on revisions due to dislocations in total hip arthroplasty

2021 ◽  
Vol 32 (9) ◽  
Author(s):  
Francesco Castagnini ◽  
Barbara Bordini ◽  
Monica Cosentino ◽  
Cristina Ancarani ◽  
Federica Mariotti ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Lower Risk ◽  
Time Distribution ◽  
Total Hip ◽  
Arthroplasty Registry ◽  
Metal On Metal ◽  
The Impact ◽  
Frequent Reason ◽  
Ceramic On Ceramic

Abstract Introduction Recurrent dislocations are still the most frequent reason for revision in total hip arthroplasty (THA). The impact of bearing surfaces on dislocations is still controversial. We hypothesized that: (1) bearing surfaces influence the revisions due to dislocations; (2) ceramic-on-ceramic reduced the revisions for dislocations in adjusted models; (3) Delta-on-Delta bearings reduced the revisions for dislocations in comparison to surfaces with cross-linked polyethylene. Materials and methods The regional arthroplasty registry was enquired about bearing surfaces and revisions for dislocations and instability. Unadjusted and adjusted rates were provided, including sex, age (<65 years or ≥65 years), head diameter (≤28 mm or >28 mm; <36 mm or ≥36 mm) as variables. 44,065 THAs were included. Results The rate of revisions for dislocations was significantly lower in ceramic-on-ceramic and metal-on-metal bearings (unadjusted rates). After adjusting for age, sex, and head size (36 and 28 mm), hard-on-hard bearings were protective (p < 0.05): ceramic-on-ceramic had a lower risk of revisions due to dislocation than ceramic-on-polyethylene (HR 1.6, 95% CI 1.2–2.2 p = 0.0009). The rate of revisions for dislocation was similar in bearings with cross-linked polyethylene and Delta-on-Delta articulations, in unadjusted and adjusted models. Conclusion Bearings with conventional polyethylene were more predisposed to dislocations. Currently adopted bearings exerted no significant influence on revisions due to dislocations. These findings could be primarily related to wear, but due to the time distribution, soft tissue envelopes and surface tension may also play a role. Pre-clinical biomechanical evaluations and prospective matched cohort studies are required to draw definitive conclusions.

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