The 100 top-cited articles in diabetic kidney disease: a bibliometric analysis

BackgroundTremendous scientific researches have been conducted in the field of diabetic kidney disease (DKD), while few bibliometric analyses have been performed. We aim to identify 100 top-cited published articles about DKD and analyze their main characteristics quantitatively.MethodsWeb of Science was searched with the term ‘diabetic kidney disease’ OR ‘diabetic nephropathy’ to identify the top 100 most cited articles. For articles meeting the predefined criteria, the following data were extracted and analyzed: citation ranking, publication year, publication journal, journal impact factor, country and institution, authors, study type, and keywords.ResultsThe highest number of citations was 4753 times. The median average citations per year was 21.8 (IQR, 16.6–33.0). Most articles focused on the pathogenesis and treatment. These articles were published in 25 different journals and the Journal of the American Society of Nephrology published the greatest number (20%). Forty-three articles (43%) originated from the United States. The University of Groningen was the leading institute, contributing five top-cited articles. The most frequent first author was de Zeeuw (n = 4), followed by Parving (n = 3). There was no correlation between the average citations and the number of authors, the number of institutes, or the number of funds, respectively. Experimental animal study was the research type most frequently conducted (n = 30), followed by observational study (n = 24). Keyword analysis revealed transforming growth factor-β, oxidative stress, proteinuria, and renin–angiotensin–aldosterone system interruption are classic research topics. Sodium-glucose cotransporter 2 inhibitors, glucagon-like peptide 1 receptor agonists, and anti-inflammatory agents are the emerging trends of DKD.ConclusionsThis bibliometric analysis helps in identifying the milestones, inadequacies, classic hotspots, and emerging trends of DKD. Pathogenesis and treatment are core themes in DKD research, while high-quality articles on the prediction and biomarker are insufficient. New analyzing metrics are needed to assess the actual impact of these top-cited articles on clinical practice.     

The fifty most cited Latin-American articles in the orthopaedic literature

Purpose

The number of citations of an article is a marker of its academic influence. Several medical specialties, including orthopaedics, have ranked the articles with more citations. We identified the 50 most cited orthopaedic articles from Latin-America and analyzed the characteristics that made them citable.

Methods

Science Citation Index Expanded was searched for citations of articles originated in Latin-America, published in any of the 63 journals in the category “Orthopaedics” from 1988 to 2013. We created a list ranking the 50 most commonly cited articles and determined the citation density (Citations/years since publication). Information noted for each article included authors, year of publication, country of origin, source journal, article type, and field of research.

Results

Latin-American countries were the origin of 1 % of orthopaedic articles. The top 50 most cited articles had between 29 and 150 citations (mean, 44.48); the citation density ranged from 1.43 to 15.5 citations/years (mean, 5.25). The articles were published in 19 of the 63 journals (11 general and eight sub-specialty journals), and all were published in English. Most articles (n = 29) were published in 2000 or later. The majority were clinical articles (n=40), and the most common fields were arthroscopy (n = 15) and hip surgery (n = 13). The top 50 articles originated mainly from Brazil (n = 20) and Argentina (n = 15).

Conclusions

This top 50 list displays articles that have become important references for the orthopaedic scientific community. Researchers may use this work to make their future publications more influential on future investigators.     

Last five years audit of Journal of Clinical Orthopaedics and Trauma (JCOT) - A scientometric analysis

BackgroundWe have studied the growth of Journal of Clinical Orthopaedics and Trauma (JCOT), the official journal of the Delhi Orthopaedic Association indexed in PubMed, Scopus and Embase, along with an analysis of citation trends and levels of evidence of published articles in the last five years.MethodsSCOPUS and PubMed databases (2015–19) were used to extract publication-related data for the last five years. The official website of the journal was also used to retrieve issue-specific data. An audit of recent publications in the JCOT was conducted focusing on number of issues and publications(year wise), types of articles published, review speed, level of evidence of publications, types of publication(speciality wise), number of publications in PubMed and SCOPUS, number of citations(year wise), national and international authorship and the Cite Scores.ResultsThe submissions were increased by 2.8 times and the citations rocketed to 16.6 times in 2019, compared to 2015. A total of 890 papers were there and the journal was cited 1702 times in the last five years. More articles with higher levels of evidence papers are now being published.ConclusionThere has been a significant increase in the numbers of submissions, publications, citations, Cite Score, h-index and contribution by the International authors. Its Editorial efficiency has also been outstanding with timely reviews and editorial decisions. The JCOT has become increasingly internationally relevant in the last five years, in the orthopaedic community. However, JCOT needs to publish more papers with a higher level of evidence like Systematic reviews, Meta-analyses, Randomized Controlled Trials and should only publish top-class lower hierarchy papers (like Case reports, Case-controlled and Retrospective studies).     

Análise bibliométrica no campo da anestesiologia no período de 2009‐2018

ObjectiveThe limited number of bibliometric studies in the literature have generally focused on the top‐cited studies in the field of anesthesia, however, there is a lack of studies that made a holistic bibliometric evaluation of these works. The purpose of this study is to make a contemporary summary of the articles published in the field of anesthesia within the last 10 years through detailed bibliometric methods.MethodsThe articles published between the years 2009 and 2018 were downloaded from the Web of Science (WoS) database and analyzed using bibliometric methods. The literature review was conducted using the keyword “Anesthesiology” in the “Research Area” category via the advanced search option available in WoS. The relation between the number of publications of the countries and the Gross Domestic Products and Human Development Index values were analyzed using Spearman's correlation coefficient. The number of articles between the years 2019 and 2021 was estimated through linear regression analysis.ResultsA review of the literature indicated 41,003 articles in the Web of Science database. Estimations included 4,910 (3,971‐5,849) articles for the year 2019. There was a high‐level, positive significant correlation between the number of publications and Gross Domestic Product (r = 0.776, p < 0.001).ConclusionThe findings show that countries with high income are effective in the field of anesthesia, which indicates a strong association between research productivity and economic development. Undeveloped and developing countries should be encouraged to conduct research in the field of anesthesia.     

Bibliometric analysis of COVID-19 related publications in Indian orthopaedic journals

BackgroundThe COVID-19 pandemic has resulted in an infodemic about the novel coronavirus SARS-CoV-2 outbreak to build knowledge and develop mitigation strategies. In addition, scientific journals across the world have studied the impact of COVID-19 on trauma and orthopaedics.MethodsA cross-sectional, bibliometric analysis of the literature was undertaken on COVID-19 related articles from three Pubmed and Scopus indexed orthopaedic journals from India, namely, Indian Journal of Orthopaedics(IJO),Journal of Clinical Orthopaedics and Trauma(JCOT), and Journal of Orthopaedics (JOO), in May 2021. All the article types and study designs were included for this review. The authors, institutions, countries, keywords, and co-authorship mapping were studied.ResultsA total of 112 COVID-19 related documents were retrieved. Period of these publications was from 2^nd April 2020 to 31^st May 2021. Vaishya R. (n = 16) was the most cited author, and Indraprastha Apollo Hospitals (n = 16) was the most cited research Institution. India led the list of countries in academic publication output. On keyword mapping, telemedicine was the most prominent Medical Subject Headings (MeSH) search word.ConclusionThe Indian orthopedic journals have addressed the impact of COVID-19 on orthopaedic practice in India and aborad whilst continuing to publish knowledge about basic science and clinical orthopaedic research studies. The JCOT has outperformed and become the most leading orthopaedic journal from India during the pandemic. COVID -19 articles have been fast tracked, open accessed and attracted more citations in reduced duration of time compared to non-COVID-19 papers.     

Bibliometric analysis of the top 50 most cited publications of the Journal of Clinical Orthopaedics and Trauma

BackgroundThe Journal of Clinical Orthopaedics and Trauma (JCOT) is one of the top three orthopaedic journals from India. We set out to analyse the top 50 cited articles from JCOT since indexing in PubMed and Scopus.MethodsWe looked into the bibliometrics of the top 50 cited articles and compared citations from PubMed and Scopus, and depicted outputs from VOS viewer analysis on co-authorship and keywords.ResultsTotal citations for top-cited articles were 1076 in numbers, with a maximum of 103.2016 and 2018 were the most productive years. The major contribution was from India with 74%, followed by the USA. New Delhi published maximally at 72%. Clinical topics and narrative reviews were the most common types of studies. Trauma and Adult reconstruction was the most common sub-specialities, and Level 4 was the most frequent level of study. The basic science and COVID-19 related articles received the maximum citations. The authors from Indraprastha Apollo Hospitals published the maximum number of top-50 cited articles in the JCOT.ConclusionsThere is a steady increase in the number of publications in the JCOT, with an increasing number of citation counts. Both the Indian and foreign authors have been publishing in this journal at a comparative rate. Although the citation counts in Scopus are more than those in PubMed for given articles, more than 80% of articles are listed in both databases as top 50 cited articles. The majority of top-cited articles belonged to trauma and adult reconstruction, level III studies, and narrative reviews.     

Top 100. Revisión de los artículos más citados sobre cirugía laparoscópica del páncreas

IntroductionThe number of citations is considered as an indirect indicator of the merit of an article, journal or researcher, although it is not an infallible method to determine scientific quality. Our goal is to determine the characteristics of the articles most cited about pancreas and laparoscopy.MethodsWe performed a search of all articles published in any journal about pancreas and laparoscopy until September 2019 and selected the 100 most cited papers. We recorded number of citations, journal, year of publication, quartil, impact factor, institution, country, authors type of paper, type of surgery, topic and area.ResultsThe top 100 citations account 10,970 citations in total. The journal with the most articles is Surgical Endoscopy and 2007 is the year with the highest number of articles in the top 100 citations. The percentage of publications from America and Europe are similar.Case series is the most frequently paper, outcomes/morbidity is the most frequently discussed topic, and distal pancreatectomy is the most frequently type of surgery.ConclusionsThis bibliometric study on pancreas and laparoscopy is conditioned by the time factor, since laparoscopy has arrived later at pancreatic surgery, probably due to the morbidity and mortality associated with pancreatic surgery and the need for a high specialization in this field. The literature is recent and scarce. More and better-quality studies are needed in this field.     

Subspecialty Variation in Academic Citations of Orthopedic Surgery Publications

BackgroundThe objective of this study was to assess the variation in academic citation and social media mentions across orthopedic subspecialties in general orthopedic surgery journals.MethodsAn internet-based study was performed of 666 articles from four orthopedic journals published from January 2018 to February 2019. Each publication was categorized by its subspecialty within orthopedics: arthroplasty, hand and upper extremity, foot and ankle, orthopedic oncology, pediatric orthopedics, shoulder, spine, sports medicine, orthopedic trauma, basic science, and miscellaneous. For each publication, academic citations were quantified using Google Scholar and Web of Science, and social media mentions were quantified using Twitter. Comparisons of continuous data among various subspecialties were performed using analysis of variance.ResultsThe average number of citations per publication was 7.4 ± 9.0 on Google Scholar, 4.5 ± 5.3 on Web of Science, and 2.8 ± 8.7 on Twitter. The number of academic citations differed significantly by subspecialty on Google Scholar (p < 0.001) and Web of Science (p < 0.001). There was no difference in social media mentions on Twitter by subspecialty (p = 0.8). The most highly cited subspecialties, adjusted for number of publications, were arthroplasty, orthopedic oncology, and sports medicine, while the least highly cited subspecialties were hand and upper extremity, pediatric orthopedics, and orthopedic basic science.ConclusionsThere is significant baseline variation in the citation of orthopedic publications among various subspecialties. Our findings argue against the use of a uniform threshold to gauge scholarly success in orthopedic surgery. The variation in citation of orthopedic publications across subspecialties support the use of subspecialty-specific benchmarks to gauge academic productivity.     

The Most Frequently Cited 100 Articles in Liver Transplantation Literature

Introduction

We investigated the liver transplantation literature since 1975 and found the most frequently cited 100 articles and assessed the distribution of authors and journals of these articles.

Bibliometric analysis of orthopaedic related publications by Indian authors from the last decade

PurposeBibliometric studies have been established methods of analysing publications on a particular topic. These studies have been done on various orthopaedic topics and are increasing. The advantages of these studies have been highlighted in previous publications. Although some studies have been done on Indian publications from other specialties, those analysing Indian Orthopaedic Publications are lacking.MethodsWe performed a search in Scopus to look for all publications related to orthopaedics from India. Our search strategy in Scopus included ((TITLE-ABS-KEY(Orthopaedics OR Orthopaedics) AND AFFIL(India)) AND PUBYEAR > 2009 AND PUBYEAR < 2020) which resulted in 3270 articles on 02/11/2021. We analyzed the most publishing universities, city, state, specialty, authors, and anatomic location of these publications. We also mined the data to draw word clouds based on data obtained from the titles of articles, keywords and the affiliations of each of the articles published.ResultsTamil Nadu and New Delhi and their institutes appear to be the epicenter of publication activities in Orthopaedics in India. There has been a healthy trend of growth of articles in the orthopaedic specialty. Since there is a significant overlap of technology and engineering, it is not surprising to see engineering and technology institutes among the top 10 published institutes and even journals for the publications on orthopaedics.ConclusionThere has been a steady increase in the number of publications in the last decade. New Delhi and its Universities and Institutes appear to contribute the majority of citations and publications related to orthopaedics. Journal of Clinical Orthopaedics and Trauma was the most publishing journal for Indian authors on Orthopaedic related articles.     

Association of scientific and nonscientific factors to citation rates of articles of renowned orthopedic journals

Purpose

The physician often relies on the prestige of a journal to identify the most relevant articles to be read in his field. This investigation studied associations of scientific and nonscientific criteria with the citation frequency of articles in two top-ranked international orthopedic journals.

Methods

The 100 most (mean, 88 citations/5 years for cases) and 100 least (mean, two citations/5 years for controls) cited articles published between 2000 and 2004 in the Journal of Bone and Joint Surgery and the Bone & Joint Journal (formerly known as JBJS (Br)), two of the most distributed general orthopedic journals, were identified. The association of scientific and nonscientific factors on their citation rate was quantified.

Results

Randomized controlled trials, as well as multicenter studies with large sample sizes, were significantly more frequent in the high citation rate group. The unadjusted odds of a highly cited article to be supported by industry were 2.8 (95 % confidence interval 1.5, 5.6; p?<?0.05) if compared with a lowly cited article.

Conclusion

Beside scientific factors, nonscientific factors such as industrial support seem associated to the citation rate of published articles. This, together with publication bias, questions whether scientific facts reach the readers in a balanced fashion. Level of Evidence 3     

UK national survey of venous thromboembolism prophylaxis in ankle fracture patients treated with plaster casts

BackgroundAnkle fractures are one of the commonest orthopaedic injuries. A substantial proportion of these are treated non-operatively at outpatient clinics with cast immobilization. We conducted this survey to assess the current practice in UK regarding thromboembolism prophylaxis in these patients.MethodsA telephonic survey was carried out on junior doctors within orthopaedic departments of 56 hospitals across the UK. A questionnaire was completed regarding venous thromboembolism risk assessment, prophylaxis, hospital guidelines, etc.Results84% (n = 47) hospitals did not routinely use any prophylaxis for these patients, while 7% (n = 4) hospitals used chemo-prophylaxis. Only 5.3% (n = 3) hospitals had DVT prophylaxis guidelines regarding these patients while other 9% (n = 5) hospitals were in process of developing such guidelines. In 64% (n = 36) hospitals, no formal DVT risk assessment was carried out.ConclusionA large variation exists across NHS hospitals and a poor risk assessment is being carried out in these patients. Development of local guidelines and extension of national guidelines to include high risk outpatients may improve the situation.     

Early versus delayed thromboprophylaxis with LMWH in pelvic-acetabular trauma- a prospective study

BackgroundDelayed presentation of pelvic-acetabular fractures is a common scenario in developing countries and there is usually a delay of more than 24 h in their presentation.ObjectivesWe aim to comparatively analyse early(<24 h) versus delayed (>24 h) thromboprophylaxis with low molecular weight heparin (LMWH) in prevention of deep venous thrombosis (DVT) in Pelvic Acetabular fractures.MethodsPatients of pelvic-acetabular fractures who presented during 1 year of study period were divided into 2 groups after exclusion of patients with contraindications for thromboprophylaxis. Group A included patients who received LMWH prophylaxis within 24 h of injury. Group B included patients who received LMWH prophylaxis after 24 h of injury. All patients underwent CT venography at day 14 and were followed up with doppler ultrasound on 4th and 8th week.Results110 patients with pelvic-acetabular fractures were included after exclusion of 61 patients. 4 out of 29 patients in group A (13.8%) and 12 out of 81 patients (14.8%) in group B developed DVT. There was no significant difference in incidence of DVT between Group A and B (P value-0.893).ConclusionThere was no difference between early and delayed thromboprophylaxis with LMWH in pelvic-acetabular trauma.     

Citation analysis of the most influential articles on traumatic spinal cord injury

Objective: We conducted a citation analysis in order to catalog and pay tribute to the 100 most influential clinical research articles in traumatic spinal cord injury.

Design: The Thomson Reuters Web of Science was searched in a two-step process without time period limitations. Review articles were excluded. In the first stage of data extraction, a Boolean query was used to identify the top 100 most cited clinical papers on traumatic spinal cord injury. One hundred and seven keywords were manually chosen and extracted from titles and abstracts. A second Boolean query used these keywords to broaden search results. The top 100 articles from this second stage search comprised the final list.

Outcome Measures: For each article, measures evaluated were number of citations, average number of citations per year, time elapsed before first citation, and time elapsed until the year in which each article received its respective highest number of citations in a one-year period.

Results: 119,991 articles were found in the second stage search. The top 100 most cited articles meeting inclusion criteria were identified within the first 2,104 results. Archives of Physical Medicine and Rehabilitation was the most represented journal, with 20 of the top 100 articles. The top 100 list averaged 255 citations per article. The most highly cited article was the NASCIS 2 trial by Bracken et al., cited 1500 times, which investigated the efficacy of methylprednisolone or naloxone for spinal cord injury.

Conclusion: Clinical research in traumatic spinal cord injury has grown over time, expanding to encompass rehabilitation and experimental therapies in addition to acute management trials. The list may serve as an archive and reference for further studies in this field.     

The 100 most cited papers in foot and ankle surgery

BackgroundThe number of citations of a paper gives an indication of an article's merit and importance within a medical specialty. We identify and analyse the 100 most cited papers in foot and ankle surgery.MethodThe Science Citation Index Expanded was searched for citations in 15 respected journals containing foot and ankle articles. Papers were analysed for subject, authorship, institution, country and year of publication. The average yearly citation was compared to total number of citations.Results3501 foot and ankle papers were returned. The maximum number of citations was 1084 and the mean was 104. The top 100 papers were published between 1979 and 2007, with the majority published in the last decade. The ankle was the most important anatomical region discussed, and basic science and degenerative disease were popular topics. We found a large discrepancy between the total number of citations with average yearly citation.ConclusionFoot and ankle surgery is a young and rapidly developing sub-specialty within orthopaedics. Recently there has been a significant increase in influential papers published. Certain topics are popular indicating their importance within the field. This study highlights important papers in foot and ankle surgery giving an insight into readership.     

The 50 Most-cited Articles in Orthopaedic Surgery From Mainland China

Background

Citation analysis has been widely used to evaluate the impact of articles in medical and surgical specialties. Although China is the most populous country in the world, and although more than 50,000 orthopaedic surgeons practice there, to our knowledge no formal citation analysis of Chinese orthopaedic articles has been performed.

Questions/purposes

We identified the 50 most-cited orthopaedic articles from mainland China and evaluated these articles in terms of their language of publication, source journals, and topics.

Methods

Science Citation Index Expanded was searched in July 31, 2014 for citations of articles published in 70 selected journals since the inception of the database. The 50 most-cited orthopaedic articles originating in mainland China were identified. Basic information, including title, authors, year of publication, article type, journal in which the work was published, city, institution, number of citations, decade published, and topic or subspecialty of the research were recorded.

Results

The number of citations for the top 50 papers ranged from 181 to 31 (mean, 52). These articles were published between 1981 and 2010. The decade of 2000 to 2009 was the most prolific, with 36 of the top 50 articles published during this time. All articles were written in English and they were published in a total of 16 journals. The journal Spine published the largest number of articles (12), followed by Clinical Orthopaedics and Related Research^® (seven). The journal Lancet had the highest impact factor (39.207 for 2013) among any of the journals that published articles we identified. The top 50 articles originated mainly from Beijing (16) and Shanghai (12), with basic research being the focus of the majority (27 of 50; 54%); the remaining were clinical studies. Bone was the most-investigated topic in basic research; the spine was the most-common topic among the identified clinical studies.

Conclusions

The 50 most-cited articles that we identified should be considered influential, although a large gap remains between mainland China and the global orthopaedic community in terms of citations per article. Nevertheless, insofar as the most-recent decade of our survey generated the most articles in this top-50 list, we would characterize mainland China’s effect on musculoskeletal research as increasing, and as funding increases to programs in mainland China, we anticipate this trend will continue in the future.