Journal of long-term effects of medical implants最新文献

{"title":"A Review of the Recent Advances of Cardiac Pacemaker Technology in Handling Complications.","authors":"Megan Lowe,&nbsp;Lily Nguyen,&nbsp;Dhiman J Patel","doi":"10.1615/JLongTermEffMedImplants.2022039586","DOIUrl":"10.1615/JLongTermEffMedImplants.2022039586","url":null,"abstract":"<p><p>The total number of annual pacemaker implantations continues to grow globally, and help patients with heart rhythm disorders with an improved quality of life and reduced mortality. The first implantable pacemakers appeared in 1965, characterized by their bulkiness, short battery life, and a single pacing mode. Innovation led to the modern pacemaker: a smaller system with improved battery life and capacity, and innovation in lead technology. Certain arrhythmia conditions may also qualify for leadless pacemaker implantation, thus eliminating the spectrum of complications that could occur with leads. Adverse events can be divided into acute (perforation, lead dislodgement, infection) and long-term (lead fractures, device infection, insulation failure). Traditional long-term complications with leads occur in 10% of patients, compared with device-related adverse effects observed in 6.7% of leadless pacemakers. Furthermore, cardiac pacemaker implantation results in quality of life improvements across all age groups. Large cardiac rehabilitation studies have demonstrated the effectiveness of exercise in reducing the physical complications involved with pacemaker implantation. Of the three randomized controlled trials examined, all of them reported some benefit of exercise in the intervention group compared with the control. The following review aims to discuss the multitude of pacemaker options potentially available for the clinician, complications, their course of management, and the path forward with innovations arising out of previous research within the field.</p>","PeriodicalId":16125,"journal":{"name":"Journal of long-term effects of medical implants","volume":"33 4","pages":"21-29"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10274214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ramus frame dental implant functional survival and safety in severely atrophic edentulous human mandibles.","authors":"O. Hilt Tatum, Jr., Thomas E. Rams","doi":"10.1615/jlongtermeffmedimplants.2023048783","DOIUrl":"https://doi.org/10.1615/jlongtermeffmedimplants.2023048783","url":null,"abstract":"Ramus frame dental implants were retrospectively studied in 360 adults with severely atrophic edentulous mandibles. Patient records up to 12 years post-treatment were independently reviewed after a single clinician surgically placed titanium long-arm (“Tatum”) ramus frame implants and immediately loaded them with a mandibular overdenture. A total of 11 ramus frames were removed at 19 to 109 months post-treatment, mostly due to supramucosal bar fracture (N = 6) or mobility (N = 3). Kaplan-Meier product-limit analysis revealed the post-treatment survival probability for functional ramus frame implants to be 99.3% at 2 years (266 patients), 98.9% at 3 years (223 patients), 97.9% at 4 years (198 patients), 96.9% at 5 years (160 patients), 96.9% at 6 years (123 patients), 95.0% at 7 years (86 patients), 95.0% at 8 years (67 patients), 93.3% at 9 years (43 patients), and 91.1% at 10 years (25 patients). No statistically significant differences in functional ramus frame implant survival were found relative to patient gender, smoking, presence of natural maxillary teeth, or compliance with semi-annual maintenance care. Fracture of endosseous anterior feet/posterior arms was the most frequent implant-related complication on 29 implants, which were left in place, repaired, or replaced in situ without implant removal. At 5 years, the ramus frame implant functional survival probability without any implant-related biological or mechanical complication was 88.9%. Ramus frame dental implants, immediately loaded with a fully implant-borne mandibular overdenture, exhibited a high degree of long-term functional survival and safety in severely atrophic edentulous human mandibles.","PeriodicalId":16125,"journal":{"name":"Journal of long-term effects of medical implants","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134981805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Microbial Composition of Natural Teeth and Implants by 16S rRNA Gene Sequencing.","authors":"Arvina Rajasekar,&nbsp;Pratebha Balu,&nbsp;Saravana R Kumar,&nbsp;Sheeja S Varghese","doi":"10.1615/JLongTermEffMedImplants.2022044519","DOIUrl":"https://doi.org/10.1615/JLongTermEffMedImplants.2022044519","url":null,"abstract":"<p><p>Exploring variations in the oral microbiome that predict the early stages of oral diseases could lead to more accurate diagnosis and therapy before the disease manifests clinically. This study compared the bacterial profile around prosthesis on natural teeth and implants in a healthy oral cavity. Fifteen participants with prosthesis on natural teeth and 15 participants with implants were recruited. All participants were periodontally healthy. Plaque samples were collected and then subjected to PCR amplification with 16S rRNA gene sequencing. Using the BlastN program, the sequenced data were compared to reference bacterial gene sequences in the Human Oral Microbiome Database. Finally, bacterial species in both groups' samples were identified, and a phylogenetic tree was created to compare the bacterial profile around prosthesis on natural teeth and implants. Microorganisms identified were Streptococcus, Fusobacterium, Corynebacterium, Micrococcus, Aeromonas, Leptotrichia, and Dechloromonas species; around implants were Streptococcus, Fusobacterium, Corynebacterium, Prevotella, Eikenella, Nisseria, Rothia, Aeromonas, Leptotrichia, and Actinomyces species. On comparing the bacterial profile around prosthesis on natural teeth and implants in periodontally healthy individuals, pathogenic bacterial species including Fusobacterium nucleatum, Prevotella intermedia, and Eikenella corrodens were identified around implants.</p>","PeriodicalId":16125,"journal":{"name":"Journal of long-term effects of medical implants","volume":"33 3","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10049055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"COMPARISON OF MALONDIALDEHYDE LEVELS AMONG PATIENTS WITH SANDBLASTED ACID-ETCHED AND ANODIZED SURFACE DENTAL IMPLANTS: A PROSPECTIVE CLINICAL STUDY","authors":"Arvina Rajasekar, Sheeja S Varghese","doi":"10.1615/jlongtermeffmedimplants.2023047545","DOIUrl":"https://doi.org/10.1615/jlongtermeffmedimplants.2023047545","url":null,"abstract":"Objective: Inflammation that occur as a part of body's response to implant-tissue contact can result in oxidative stress. Therefore, exploring the oxidative stress around different surface treated dental implants is essential to improve the performance of implants. The purpose of this study was to detect and measure the level of malondialdehyde (MDA), oxidative stress marker among SLA, SLActive and TiUnite implant surfaces. Materials and Methods: Subjects with healthy dental implant were categorized into Group 1: SLA (n=25), Group 2: SLActive (n=25), Group 3: TiUnite (n=25). Peri-implant crevicular fluid (PICF) was collected and MDA was quantified using ELISA kit. Statistical analysis was performed using one-way ANOVA, followed by Tukey’s HSD post hoc. Results: The MDA level was high in group 3 (6.49±0.29 nmol/mL) followed by group 1 (5.37±0.47 nmol/mL) and group 2 (4.37±0.22 nmol/mL). There was a significant difference in MDA levels between the three groups (p = 0.00). Also, pairwise comparison showed a statistically significant difference between the groups (p = 0.00). Conclusion: Malondialdehyde level in peri-implant crevicular fluid was high around TiUnite dental implant as compared to SLA and SLActive implants.","PeriodicalId":16125,"journal":{"name":"Journal of long-term effects of medical implants","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135913277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Implant and Prosthesis Survival Rates Based on Crestal Bone Loss.","authors":"Nor Masitah Mohamed Shukri,&nbsp;Revathi Duraisamy,&nbsp;Arthi Balasubramaniam,&nbsp;Dhanraj Ganapathy","doi":"10.1615/JLongTermEffMedImplants.2022041096","DOIUrl":"https://doi.org/10.1615/JLongTermEffMedImplants.2022041096","url":null,"abstract":"<p><p>A dental implant mimics the tooth and restores its function. It has flourished as a replacement of missing natural teeth that has a success rate over 90% over the years. However, this root-form implant has also been associated with some complications after its application. Crestal bone loss, one of the biggest challenges in dental implant placement, occurs around the dental implant neck within a few months post-loading. The aim of this study was to determine survival rates and to measure crestal bone changes after placement of a single crown prosthesis. Data collection was done in a private dental university setting. Data from approximately 296 cases were retrieved after analyzing 86,000 case sheets. The following parameters were evaluated based on dental records: age, sex, implant placement area, implant diameter and length, and presence or absence of exudate. Crestal bone loss was assessed radiographically. Excel tabulation and SPSS version 23 were used for data analysis. Chi-square testing was done to correlate various parameters used in this study. Incipient crestal bone loss was commonly observed. It was seen that the association between crestal bone loss and exudate was statistically significant (Chi-square, p < 0.05). Within the limits of this study, incipient crestal bone loss was observed in most dental implants irrespective of bone density, implant length, implant diameter, and implant placement area.</p>","PeriodicalId":16125,"journal":{"name":"Journal of long-term effects of medical implants","volume":"33 2","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10856353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Impact of COVID-19 Pandemic in Orthopaedic Surgery Hospital Admissions and Workload in a Major Trauma Center.","authors":"Anastasia Vasilopoulou,&nbsp;Alexandros P Apostolopoulos,&nbsp;Spyridon J Maris,&nbsp;Emmanouel Antonogiannakis,&nbsp;Antonios Trichonas,&nbsp;Stavros Angelis,&nbsp;Konstantinos Palaiologos,&nbsp;Dimitrios K Filippou","doi":"10.1615/JLongTermEffMedImplants.2022044484","DOIUrl":"https://doi.org/10.1615/JLongTermEffMedImplants.2022044484","url":null,"abstract":"<p><p>The coronavirus disease 2019 (COVID-19) pandemic has led to important restrictions in social life of civilians worldwide and there were lower admission rates mainly in surgical departments in many hospitals. This study presents how COVID-19 pandemic affected admissions at the orthopaedic and trauma surgery department of a major trauma center. A retrospective study was conducted that recorded all patients examined at the outpatient orthopaedic clinic and the emergency orthopaedic department, as well as patients admitted to the orthopaedic surgery clinic and patients that underwent operative procedures between March 23 and May 4, 2020 (first lockdown period) and between March 23 and May 4, 2019 (control period). In addition, all patients with hip fractures that required hospitalization and underwent hip surgery were identified during the same time periods. During lockdown period 1 compared with the lock-down period 2 were observed: 70% and 61% decrease in the number of patients examined at the outpatient clinic and the emergency orthopaedic department respectively. The number of patients admitted to the orthopaedic surgery clinic declined by 41%, whereas operative procedures decreased by 22%. Regarding hip fractures timing to surgery during the first period was significantly less compared with second lockdown period, however, hospitalization days remained almost unchanged over the two time lockdown periods. Restrictions during the first lockdown period due to COVID-19 pandemic caused an important decrease in the number of patients and theaters in all orthopaedic departments in one of the major trauma centers in Athens. However, the incidence of hip fractures in elderly was not significantly decreased. Further similar studies are needed to identify variations and patterns of these parameters in other trauma centers.</p>","PeriodicalId":16125,"journal":{"name":"Journal of long-term effects of medical implants","volume":"33 3","pages":"31-33"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9674454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Knowledge, Attitude, and Perception Regarding the Financial Aspects of Prosthetic Rehabilitation Using Dental Implants: A Double-Questionnaire-Based Study.","authors":"Amrutha Shenoy,&nbsp;Dhanraj M Ganapathy,&nbsp;Subhabrata Maiti,&nbsp;Vinay Sivaswamy","doi":"10.1615/JLongTermEffMedImplants.2022042615","DOIUrl":"https://doi.org/10.1615/JLongTermEffMedImplants.2022042615","url":null,"abstract":"<p><p>To assess up to date patient and doctor perceived costs of dental implant surgery among the Indian population as there is a lack of information regarding patients' awareness of dental implants. Two online questionnaire forms were sent over the internet to the Indian population and the Indian dentists and dental students regarding the knowledge, attitude and perception regarding the dental implant surgery for rehabilitation of a single missing tooth. Statistical analysis was then carried out using SPSS software version 23.0. Thirty-eight percent (P < 0.05) of the participants questioned the thought that implants require the same care as fixed prostheses, and thought it was a better option due to a major percent expecting an additional payment > 10,000 indian rupees. The expectations that patients have for an implant-supported set are high in contrast to their willingness to make additional payments. There are still misconceptions regarding costs, and these must be resolved individually in practice.</p>","PeriodicalId":16125,"journal":{"name":"Journal of long-term effects of medical implants","volume":"33 3","pages":"21-29"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9674455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Bone Grafting on Hard and Soft Tissue Changes Following Immediate Implant Installation in Mandibular Molar Sites: A Double-Blind Randomized Clinical Trial.","authors":"Nahid Nasrabadi,&nbsp;Ali Forouzanfar,&nbsp;Mohammad Reza Farsi,&nbsp;Kourosh Babaei,&nbsp;Farzaneh Ahrari","doi":"10.1615/JLongTermEffMedImplants.2022044833","DOIUrl":"https://doi.org/10.1615/JLongTermEffMedImplants.2022044833","url":null,"abstract":"<p><p>This study investigated the effect of bone grafting on hard and soft tissue alterations after immediate implant insertion in mandibular molar sites. This randomized, double-blind clinical trial consisted of 30 healthy patients (17 women and 13 men aged 22-58 years) who required immediate implant installation to replace a first or second mandibular molar. Only subjects with a buccal gap between 2 and 4 mm were selected. The participants were randomly allocated to two groups. In the experimental group, the gap was augmented by an allograft, whereas in the control group no graft was applied. Marginal bone level, probing depth, keratinized gingival width, and bleeding on probing were assessed at the time of implant placement (T0), 1 month (T1), and 3 months (T2) after surgery. There was no significant difference in hard and soft tissue parameters between the grafted and nongrafted sites at any of the durations (P < 0.05). Bone level decreased significantly in both groups (P < 0.05). However, the amount of probing depth and the frequency of cases showing bleeding on probing did not alter over the experiment either in the test or in the control group (P > 0.05). Bone grafting simultaneously with immediate implant installation had no significant effect on hard and soft tissue outcomes when the buccal gap size was between 2 and 4 mm. Therefore, the use of a bone substitute is not mandatory up to the jumping distance of 4 mm in immediate implant surgery.</p>","PeriodicalId":16125,"journal":{"name":"Journal of long-term effects of medical implants","volume":"33 3","pages":"87-96"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10049053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Role of Vitamin D Levels in Early Dental Implant Failure.","authors":"Abhiti Kuhad","doi":"10.1615/JLongTermEffMedImplants.2022039518","DOIUrl":"https://doi.org/10.1615/JLongTermEffMedImplants.2022039518","url":null,"abstract":"<p><p>Dental implants are being utilized by numerous dentists to replace missing teeth by restoring the function of teeth without compromising the aesthetics. An implant is attached to the bone through the process of osseointegration, which is the connection between bone and artificial implant. For a dental implant to be successful long-term stable osseointegration is required. Early dental implant failure (EDIF) usually occurs within the first four months of implant placement. Osseointegration is dependent on the serum levels of vitamin D. Vitamin D is a secosteroid hormone synthesized by skin cells under the influence of UV radiation or is ingested through a diet or supplemental medication. Low levels of vitamin D negatively affect bone formation thus, affecting the longevity of implant. Vitamin D facilitates bone metabolism, alveolar bone resorption thus, preventing tooth loss. The relationship between bone formation and vitamin D levels have been observed in animal models. According to numerous studies conducted on rodents, vitamin D has been found to increase bone formation around implants. Vitamin D serum levels can be influenced by a variety of factors such as malnutrition, insufficient sun exposure, pigmented skin, obesity and advanced age. As vitamin D levels decrease with increasing age, osteoporosis and periodontal diseases are often diagnosed within the elderly population. Vitamin D is involved in the wound healing process and involves numerous different cells and calcium signaling pathways. This review paper will investigate the relationship between serum vitamin D levels and its impact on wound healing and EDIF.</p>","PeriodicalId":16125,"journal":{"name":"Journal of long-term effects of medical implants","volume":"33 4","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10274215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlation between Bovine Arch and Thoracic Aortic Disease: A Literature Review.","authors":"Olga Bountou,&nbsp;V Protogerou,&nbsp;K Ananikas,&nbsp;G Tsikouris,&nbsp;Stavros Angelis,&nbsp;Theodore Troupis","doi":"10.1615/JLongTermEffMedImplants.2022043790","DOIUrl":"https://doi.org/10.1615/JLongTermEffMedImplants.2022043790","url":null,"abstract":"The bovine artery is considered the most frequent aortic arch branching variation. Despite being considered a normal variation of the aortic arch branching, still it has been linked with various issues regarding the thoracic aorta. The aim of this study is to highlight the prevalence of bovine artery among specific vascular pathologies throughout the literature and to provide information to clinicians about the importance of identifying this variation. For this specific review, we acquired potentially relevant studies for inclusion from the electronic database of PubMed. We limited our investigation to papers published within the last decade (from 2011 to 2021). Single case reports, papers with language restrictions, letters to the editor, conference abstracts, studies that were non-human centered and studies with unextractable and incomplete data were not included. Searching the PubMed database, it was evident that there is a close relationship between bovine arch and thoracic aortic arch pathology. In the defined period 2011-2021 that our research was focused, we selected eight studies tackling this issue. The majority of the studies in this review (except one) provided concerning data about the prevalence of this aortic arch variant among patients with aortic aneurysmal dilatation and aortic dissection. Following our results, we strongly believe that bovine arch should no longer being considered as a normal variation with no clinical significance, but rather as a potential risk factor for thoracic aortic arch morbidities.","PeriodicalId":16125,"journal":{"name":"Journal of long-term effects of medical implants","volume":"33 4","pages":"71-76"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9927723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}