Does metal porosity affect metal ion release in blood and urine following total hip arthroplasty? A short term study. Issue 5 (September 2018)

• Record Type: Journal Article
• Authors: Bistolfi, Alessandro; Cimino, Andrea; Lee, Gwo-Chin; Ferracini, Riccardo; Maina, Giovanni; Berchialla, Paola; Massazza, Giuseppe; Massè, Alessandro
• Is Part Of: Hip international. Volume 28:Issue 5(2018)
• Page Start: 522
• Page End: 530
• Publication Date: 2018-09
• Subjects: Total hip arthroplasty -- ion release -- trabecular titanium; Hip joint -- Pathophysiology -- Periodicals; Hip joint -- Diseases -- Periodicals; Hip joint -- Surgery -- Periodicals; 617.581005
• DOI: 10.1177/1120700018762167
• Languages: English
• ISSNs: 1120-7000

Abstract

Introduction: The surface area of exposed metal in a trabecular-titanium acetabular component is wider compared to traditional-titanium implants. The purpose of this study is to establish if this increase in surface area can lead to a significant increase in systemic metal levels. Methods: 19 patients with conventional acetabular component and 19 with trabecular-titanium cup were compared. Aluminum, Vanadium and Titanium in blood and urine were assessed before surgery and at intervals for 2 years. The samples were analysed using an inductively coupled plasma mass spectrometry. Results: Patients with trabecular-titanium did not have significantly higher metal ion levels compared to patients with conventional cups up to 2 years. A trend over time was statistically significant in both blood and urine for aluminum and titanium concentrations. Conclusions: The three-dimensionality and the wide surface of the trabecular-titanium acetabular component did not affect metal ion release compared to traditional implants after 2 years.