Journal ArticleDOI
Fracture of the Modular Femoral Neck Component in Total Hip Arthroplasty
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TLDR
Careful preoperative planning during revision of these failures is essential to avoid morbidity and unnecessary subsequent revision surgeries, as demonstrated in this case of modular femoral neck prosthesis fracture necessitating revision surgery to treat this complication.Abstract:
The use of modularity, specifically dual modular femoral stems, in total hip arthroplasty has increased in popularity over the past 2 decades. While offering several distinct advantages intraoperatively, the long-term success of adding a second modular junction has yet to be established. One potential complication of increasing modularity is component fracture. We present a case of modular femoral neck prosthesis fracture necessitating revision surgery to treat this complication. Careful preoperative planning during revision of these failures is essential to avoid morbidity and unnecessary subsequent revision surgeries, as demonstrated in this case. The combined effects of crevice and fretting corrosion, large-diameter femoral head, long modular neck, metal-on-metal articulation, patient size, and activity level may have all played integral roles in creating an environment susceptible to this classic pattern of fatigue fracture.read more
Citations
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Journal ArticleDOI
Adverse Local Tissue Reaction Arising from Corrosion at the Femoral Neck-Body Junction in a Dual-Taper Stem with a Cobalt-Chromium Modular Neck
TL;DR: Corrosion at the modular neck-body junction in dual-tapered stems with a modular cobalt-chromium-alloy femoral neck can lead to release of metal ions and debris resulting in local soft-tissue destruction and early revision should be considered given the potentially destructive nature of these reactions.
Journal ArticleDOI
Electric discharge machining – A potential choice for surface modification of metallic implants for orthopedic applications: A review
TL;DR: Among the various metallic implant materials, titanium (Ti) alloy is the best choice for the long-term hard body tissue replacements such as hip and knee joints as discussed by the authors, which has excellent mechanical, superi...
Journal ArticleDOI
Modular taper junction corrosion and failure: How to approach a recalled total hip arthroplasty implant
TL;DR: Recently, two different modular stem systems from a single manufacturer were voluntarily recalled due to concerns of failure of the modular taper junction, and it is reviewed to evaluate whether this is a manufacturer-specific defect or indicative of a broader trend.
Journal ArticleDOI
Trunnion-Head Stresses in THA: Are Big Heads Trouble?
Carlos J. Lavernia,David A. Iacobelli,Jesus M. Villa,Kinzy Jones,Jose L. Gonzalez,William K. Jones +5 more
TL;DR: Stress increases observed using increasingly larger heads will probably contribute to head-trunnion tribocorrosion and ion release.
Journal ArticleDOI
Comprehensive review on alloy design, processing, and performance of β Titanium alloys as biomedical materials
TL;DR: The strategies to design low modulus compositions of β Ti alloys are critically reviewed, followed by the processing routes employed to achieve high strength to modulus ratio suitable for orthopedic applications.
References
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Journal ArticleDOI
Corrosion of metal orthopaedic implants.
TL;DR: This review focuses on electrochemical corrosion phenomena in alloys used for orthopaedic implants, evidenced by particulate corrosion and wear products in tissue surrounding the implant, which may ultimately result in a cascade of events leading to periprosthetic bone loss.
Journal ArticleDOI
In vivo corrosion of modular hip prosthesis components in mixed and similar metal combinations. The effect of crevice, stress, motion, and alloy coupling
TL;DR: It is hypothesized that the restricted crevice environment, coupled with high cyclic stresses which cause repeated fracture of the passive oxide films in the taper, result in an unstable electrochemical environment within the crevice for both the cobalt alloy and Ti-alloy passive films.
Journal ArticleDOI
Metal release in patients who have had a primary total hip arthroplasty. A prospective, controlled, longitudinal study.
Joshua J. Jacobs,Anastasia K. Skipor,Leslie M. Patterson,Nadim J. Hallab,Wayne G. Paprosky,Jonathan Black,Jorge O. Galante +6 more
TL;DR: It is suggested that fretting corrosion at the head-neck coupling is an important source of metal release that can lead to increased concentrations of chromium in the serum and urine after total hip replacement.
Journal ArticleDOI
Migration of corrosion products from modular hip prostheses. Particle microanalysis and histopathological findings.
TL;DR: Solid corrosion product was present at the junction of the modular head and neck and as particles within the periprosthetic tissues as early as eight months postoperatively and in several hips, it was also present on the polyethylene bearing surface.
Journal ArticleDOI
Corrosion between the components of modular femoral hip prostheses.
TL;DR: Evidence is presented that changes in the tapered interface between the head and the neck of 139 modular femoral components of hip prostheses which had been removed for a variety of reasons were due to galvanically-accelerated crevice corrosion, which was undetected in previous laboratory testing of this type of prosthesis.