“…Endrizzi et al. 23 noted two cases (2.7% of their patient cohort) of instability, which did not require surgery. Budge et al.…”
Section: Resultsmentioning
confidence: 92%
“…Among those, 62 duplicate articles were identified and removed from the search. Following elimination of duplicate articles and predetermined exclusion criteria, seven articles were included for analysis 19–25 (Figure 1). Figure 1.Flow chart of study selection according to PRISMA guidelines for reporting systematic reviews and meta-analyses.…”
Section: Resultsmentioning
confidence: 99%
“…Four out of the seven studies (57.1%) made use of the visual analogue scale pain score. 22–25 Among them, Panti et al. 22 and Budge et al.…”
Section: Resultsmentioning
confidence: 99%
“…Two studies showed unacceptably high rates of metal debris formation with the use of second-generation TM-backed glenoid components. 23,25 Specifically, although Endrizzi et al. 23 reported excellent short-term component fixation and survivorship, they demonstrated that the incidence of asymptomatic metallic debris formation increased for each year of follow-up, with radiographs from 2, 3, 4, and ≥5 years of follow-up demonstrating a metallic debris incidence of 23, 36, 49, and 52%, respectively.…”
Background A number of papers have been published reporting on the clinical performance of modern trabecular metal-backed glenoid components in total shoulder arthroplasty. However, no systematic review of the literature has been published to date. Methods The US National Library of Medicine (PubMed/MEDLINE), and the Cochrane Database of Systematic Reviews and EMBASE were queried for publications from January 1980 to October 2019 utilizing keywords pertinent to total shoulder arthroplasty, trabecular metal, and clinical outcomes. Results Overall, seven articles were included for analysis (322 operated shoulders, mean follow-up range: 2–4 years). The survival rate of modern trabecular metal-backed glenoid components was 96% (309 out of 322 cases) at 43 months mean follow-up, while the rate of aseptic loosening was 0.3% (1 out of 322 cases). There were 35 cases (10.9%) with glenoid component radiolucency (one of them required revision), and 37 cases (11.5%) of metal debris formation, with four of them undergoing revision. Conclusions There was low quality evidence to show that the use of modern trabecular metal-backed glenoid components in total shoulder arthroplasty may be safe and effective at short-term follow-up. However, this analysis showed alarmingly high rates of both radiolucency of the glenoid component and metal debris formation which raise concern for potential failure of this glenoid component in the long term. Therefore, we feel that modern trabecular metal-backed glenoid components should be still used with caution as part of a structured surveillance or research program until we know if there is a detriment to the prosthesis in the medium to long term. Level: Systematic review, IV.
“…Endrizzi et al. 23 noted two cases (2.7% of their patient cohort) of instability, which did not require surgery. Budge et al.…”
Section: Resultsmentioning
confidence: 92%
“…Among those, 62 duplicate articles were identified and removed from the search. Following elimination of duplicate articles and predetermined exclusion criteria, seven articles were included for analysis 19–25 (Figure 1). Figure 1.Flow chart of study selection according to PRISMA guidelines for reporting systematic reviews and meta-analyses.…”
Section: Resultsmentioning
confidence: 99%
“…Four out of the seven studies (57.1%) made use of the visual analogue scale pain score. 22–25 Among them, Panti et al. 22 and Budge et al.…”
Section: Resultsmentioning
confidence: 99%
“…Two studies showed unacceptably high rates of metal debris formation with the use of second-generation TM-backed glenoid components. 23,25 Specifically, although Endrizzi et al. 23 reported excellent short-term component fixation and survivorship, they demonstrated that the incidence of asymptomatic metallic debris formation increased for each year of follow-up, with radiographs from 2, 3, 4, and ≥5 years of follow-up demonstrating a metallic debris incidence of 23, 36, 49, and 52%, respectively.…”
Background A number of papers have been published reporting on the clinical performance of modern trabecular metal-backed glenoid components in total shoulder arthroplasty. However, no systematic review of the literature has been published to date. Methods The US National Library of Medicine (PubMed/MEDLINE), and the Cochrane Database of Systematic Reviews and EMBASE were queried for publications from January 1980 to October 2019 utilizing keywords pertinent to total shoulder arthroplasty, trabecular metal, and clinical outcomes. Results Overall, seven articles were included for analysis (322 operated shoulders, mean follow-up range: 2–4 years). The survival rate of modern trabecular metal-backed glenoid components was 96% (309 out of 322 cases) at 43 months mean follow-up, while the rate of aseptic loosening was 0.3% (1 out of 322 cases). There were 35 cases (10.9%) with glenoid component radiolucency (one of them required revision), and 37 cases (11.5%) of metal debris formation, with four of them undergoing revision. Conclusions There was low quality evidence to show that the use of modern trabecular metal-backed glenoid components in total shoulder arthroplasty may be safe and effective at short-term follow-up. However, this analysis showed alarmingly high rates of both radiolucency of the glenoid component and metal debris formation which raise concern for potential failure of this glenoid component in the long term. Therefore, we feel that modern trabecular metal-backed glenoid components should be still used with caution as part of a structured surveillance or research program until we know if there is a detriment to the prosthesis in the medium to long term. Level: Systematic review, IV.
“…1). The final cemented PEG group included 3312 patients (25 articles) , and the modern MBG group included 457 patients (10 articles) [4][5][6][37][38][39][40][41][42][43].…”
Background: Several modern designs of metal-backed glenoids (MBG) have been devised to overcome flaws such as loosening and a high failure rate. This review aimed to compare rates of complications and revision surgeries between cemented polyethylene glenoid (PEG) and three examples of modern MBG designs. Methods: Literature search was carried out using PubMed, Cochrane Library, EMBASE, and Google Scholar using MeSH terms and natural keywords. A total of 1186 articles were screened. We descriptively analyzed numerical data between the groups and statistically analyzed the categorical data, such as the presence of radiolucent line, loosening, and revision surgery (failure). Articles were divided into three groups based on follow-up duration: < 36month, 36-72-month, and > 72-month subgroups.Results: This study included 35 articles (3769 shoulders); 25 on cemented PEG and ten on the modern MBG. Mean age was 66.4 (21-93) and 66.5 years (31-88). The mean duration of follow-up was 73.1 (12-211) and 56.1 months (24-100). Overall, the rate of the radiolucent line was 354/1302 (27%) and 47/282 (17%), the loosening rate was 465/3185 (15%) and 22/449 (5%), and the failure rate was 189/3316 (6%) and 11/457 (2%), for PEG and MBG, respectively. The results of < 36-month and 36-72-month subgroups showed lower rates of radiolucency and loosening in the cemented PEG group, but there was no significant difference in failure rate (P = 0.754 and 0.829, respectively). In the > 72-month subgroup, MBG was better in terms of loosening (P < 0.001) and failure rates (P = 0.006). Conclusions: The modern MBG component, especially TM glenoid, seems to be a promising alternative to cemented PEGs, based on subgroup revision rates according to the follow-up duration and overall results of ROM and clinical scores. All polyethylene glenoids tend to increase loosening and failure over time. Three modern MBG designs seem to have no difference in failure, at least in the < 36-month and 36-72-month subgroups compared to the cemented PEG. More long-term follow-up studies on modern MBG should be ultimately conducted. Level of evidence: Level IV, systematic review.
This paper focuses on the preparation of Zn2+-doped Ta2O5 nanorods on porous tantalum using the hydrothermal method. Porous tantalum is widely used in biomedical materials due to its excellent elastic modulus and biological activity. Porous tantalum has an elastic modulus close to that of human bone, and its large specific surface area is conducive to promoting cell adhesion. Zinc is an important component of human bone, which not only has spectral bactericidal properties, but also has no cytotoxicity. The purpose of this study is to provide a theoretical basis for the surface modification of porous tantalum and to determine the best surface modification method. The surface structure of the sample was characterized by XRD, XPS, SEM, TEM, and the Zn-doped Ta2O5 nanorods are characterized by antibacterial test, MTT test, ICP and other methods. The sample has good antibacterial properties and no cytotoxicity. The results of this study have potential implications for the development of new and improved biomedical materials.
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