Browsing by Author "Sonn, Kevin A."
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Item Adverse Local Tissue Reaction due to Acetabular Corrosion in Modular Dual-Mobility Constructs(Elsevier, 2020-12) Sonn, Kevin A.; Meneghini, Michael; Orthopaedic Surgery, School of MedicineDual-mobility (DM) bearings in total hip arthroplasty (THA) have been reported to reduce dislocation rates, especially in high-risk patients, and are being rapidly adopted in primary and revision THAs. However, this technology introduces additional interfaces that have the potential to result in unforeseen complications. We present a series of 3 patients with mechanically assisted crevice corrosion at the acetabular component–metal dual-mobility liner interface. Consequently, we urge judicious use and close clinical observation of this new, effective technology in THA.Item Early failure of sequentially annealed polyethylene in total knee arthroplasty(Elsevier, 2020-01-09) Sonn, Kevin A.; Meneghini, R. Michael; Orthopaedic Surgery, School of MedicineImprovements in the processing of polyethylene have led to a dramatic reduction in wear rates in total hip arthroplasty. This led to the adoption of modern highly cross-linked polyethylene in total knee arthroplasty (TKA). However, the differences in modes of wear and failure between total hip arthroplasty and TKA have tempered expectations regarding similar decreases in polyethylene-related complications in TKA. We present a case of early catastrophic failure of a modern sequentially irradiated and annealed highly cross-linked polyethylene insert only 5 years after contemporary cementless TKA.Item Effect of Tobacco Use on Radiolucent Lines in Modern Cementless Total Knee Arthroplasty Tibial Components(Elsevier, 2023-01-14) Patel, Sohum K.; Dilley, Julian E.; Carlone, Andrew; Deckard, Evan R.; Meneghini, R. Michael; Sonn, Kevin A.; Orthopaedic Surgery, School of MedicineBackground: The link between tobacco consumption and wound complications following total knee arthroplasty (TKA) is well established. However, the effect of tobacco use on biologic fixation in cementless TKA remains unknown. This study evaluated the influence of tobacco use on the presence of radiolucent lines of tibial components in cementless TKA. Methods: A total of 293 consecutive cementless TKAs of 2 contemporary designs were retrospectively reviewed. Tibial radiolucent lines and component alignment were measured using an established measurement protocol. Patients with any history of tobacco use or active tobacco use (tobacco users) were compared to those with no history of tobacco use (tobacco nonusers). No significant differences which influenced outcomes were detected between the tobacco user and tobacco nonuser groups (P ≥ .071). Results: Radiolucent lines decreased from 1-month to latest follow-up (mean 2.5 years) in all 10 radiographic zones regardless of tobacco use (P ≤ .084). However, evaluating intrapatient change in radiolucent line width, the tobacco nonuser group had more radiolucent lines resolve by the latest follow-up in nearly all radiographic zones, although most differences did not reach statistical significance, except for anteroposterior zone 1 (-31% vs -19%, P = .022). No tibial components were revised for aseptic loosening. Conclusions: Results from this study suggest that any tobacco use prior to cementless TKA has the potential to hinder biologic fixation of tibial components. While no tibial components were revised for aseptic loosening, follow-up was relatively short at 2.5 years and therefore warrants further study to discern the effect of persistent radiolucent lines on long-term fixation.Item Erratum to ‘Adverse Local Tissue Reaction Due to Acetabular Corrosion in Modular Dual-Mobility Constructs’ [Arthroplasty Today 6 (2020) 976-980](Elsevier, 2022-06-16) Sonn, Kevin A.; Meneghini, R. Michael; Orthopaedic Surgery, School of Medicine[This corrects the article DOI: 10.1016/j.artd.2020.08.002.].