scholarly journals Anatomical variations of mandibular canal detected by panoramic radiography and CT: a systematic review and meta-analysis

2016 ◽  
Vol 45 (2) ◽  
pp. 20150310 ◽  
Author(s):  
Letícia F Haas ◽  
Kamile Dutra ◽  
André Luís Porporatti ◽  
Luis A Mezzomo ◽  
Graziela De Luca Canto ◽  
...  
Keyword(s):  
Systematic Review ◽  
Panoramic Radiography ◽  
Meta Analysis ◽  
Anatomical Variations ◽  
Mandibular Canal

scholarly journals Panoramic versus CBCT used to reduce inferior alveolar nerve paresthesia after third molar extractions: a systematic review and meta-analysis

2020 ◽  
Vol 49 (4) ◽  
pp. 20190265
Author(s):  
Nathalia Calzavara Del Lhano ◽  
Rosangela Almeida Ribeiro ◽  
Carolina Castro Martins ◽  
Neuza Maria Souza Picorelli Assis ◽  
Karina Lopes Devito
Keyword(s):  
Systematic Review ◽  
Panoramic Radiography ◽  
Meta Analysis ◽  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Risk Of Bias ◽  
Third Molar Surgery ◽  
Reference List ◽  
Significant Heterogeneity ◽  
Eligibility Criteria

Objectives: The aim of this systematic review was to verify whether CBCT in comparison with panoramic radiography reduced the cases of temporary paresthesias of the inferior alveolar nerve (IAN) associated with third molar extractions. Methods: The literature search included five databases (PubMed, Scopus, Web of Science, Cochrane, SciELO), in addition to gray literature and hand search of reference list of included studies. Two reviewers independently screened titles/abstracts, and full texts according to eligibility criteria, extracted data and evaluated risk of bias through Revised Cochrane Risk of Bias Tool for Randomized Trials (RoB 2.0). Data were meta-analyzed by comparing CBCT versus panoramic radiographs for number of events (temporary paresthesia after third molar surgery). Fixed effect model was used for non-significant heterogeneity; relative risk (RR) and 95% CI were calculated. The certainty of evidence was evaluated by Grading of Recommendations, Assessment, Development, and Evaluation (GRADE). Results: Four randomized controlled trials (RCTs) were included in meta-analysis, and for the majority of domains they presented low risk of bias. RR was 1.23 (95% IC: 0.75–2.02; I2: 0%; p = 0.43) favouring panoramic radiography, but without significant effect, and with moderate certainty of evidence. Conclusions: We concluded that both interventions had a similar ability to reduce temporary paresthesia of the IAN after third molar surgery with moderate certainty of evidence.

Anatomical variations of the pyramidalis muscle: a systematic review and meta-analysis

2020 ◽  
Author(s):  
Roberto Cirocchi ◽  
Isaac Cheruiyot ◽  
Brandon Michael Henry ◽  
Marco Artico ◽  
Sara Gioia ◽  
...  
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Anatomical Variations

Anatomical variations of the formation and course of the sural nerve: A systematic review and meta-analysis

2015 ◽  
Vol 202 ◽  
pp. 36-44 ◽  
Author(s):  
Piravin Kumar Ramakrishnan ◽  
Brandon Michael Henry ◽  
Jens Vikse ◽  
Joyeeta Roy ◽  
Karolina Saganiak ◽  
...  
Keyword(s):  
Systematic Review ◽  
Sural Nerve ◽  
Meta Analysis ◽  
Anatomical Variations

CBCT does not reduce neurosensory disturbances after third molar removal compared to panoramic radiography: a systematic review and meta-analysis

2020 ◽  
Vol 24 (3) ◽  
pp. 1137-1149 ◽  
Author(s):  
Gabriel de Toledo Telles-Araújo ◽  
Mariela Peralta-Mamani ◽  
Raquel D’Aquino Garcia Caminha ◽  
Aneliza de Fatima Moraes-da-Silva ◽  
Cássia Maria Fischer Rubira ◽  
...  
Keyword(s):  
Systematic Review ◽  
Panoramic Radiography ◽  
Meta Analysis ◽  
Third Molar ◽  
Neurosensory Disturbances

scholarly journals The accuracy of panoramic radiography as a screening of bone mineral density in women: a systematic review

2020 ◽  
Vol 49 (2) ◽  
pp. 20190149
Author(s):  
Mateus Azevedo Kinalski ◽  
Noeli Boscato ◽  
Melissa Feres Damian
Keyword(s):  
Bone Mineral Density ◽  
Systematic Review ◽  
Bone Mineral ◽  
Panoramic Radiography ◽  
Meta Analysis ◽  
High Sensitivity ◽  
Test Accuracy ◽  
Mineral Density ◽  
Cortical Width ◽  
Mandibular Cortical Width

Objectives: A systematic review and meta-analysis of diagnostic test accuracy studies was conducted to assess if the radiomorphometric indexes observed in panoramic radiographies could estimate reduced bone mineral density (BMD) similarly to standard technique the bone densitometry (dual energy X-ray absorptiometry) in females older than 30 years. Methods: A systematic search in four databases was conducted until January 2019. Two evaluators performed data extraction and evaluation of risk of bias independently, and agreement was achieved by consensus. Data were synthesized on a subgroup meta-analysis with a random effect model and the hierarchical summary receiver-operating characteristic curve was used to calculate pooled estimates of studies. Results: Thirty three studies were included and 12 different radiomorphometric indexes identified, including Mandibular Cortical Index (MCI). The final number of cases pooled for the analysis was 5266 females.The MCI for BMD loss (osteopenia) presented values of sensitivity 0.81 [95% confidence interval (CI), 0.78–0.84] and specificity 0.48 (95% CI, 0.45–0.50), while for osteoporosis sensitivity 0.35 (95% CI, 0.30–0.40) and specificity 0.88 (95% CI, 0.86–0.90). The mandibular cortical width presented values of sensitivity 0.58 (95% CI, 0.40–0.73), specificity 0.73 (95% CI, 0.60–0.83) for osteopenia, while for osteoporosis sensitivity 0.57 (95% CI, 0.36–0.76) and specificity 0.83 (95% CI, 0.68–0.92). Due to the high sensitivity, MCI presented a potential value as a screening tool for initial BMD loss (osteopenia), once tests presenting high sensitivity are described as rarely missing subjects with the disease. To the other hand, MCI to osteoporosis and Mandibular Cortical Width for both conditions are not recommended because presented specificity higher than sensitivity. Conclusion: The MCI can be recommended as a feasible tool to screen initial BMD loss (osteopenia) in females above 30 years old using panoramic radiography exams.

scholarly journals The Prevalence of Anatomical Variations of the Median Nerve in the Carpal Tunnel: A Systematic Review and Meta-Analysis

PLoS ONE ◽  
2015 ◽  
Vol 10 (8) ◽  
pp. e0136477 ◽  
Author(s):  
Brandon Michael Henry ◽  
Helena Zwinczewska ◽  
Joyeeta Roy ◽  
Jens Vikse ◽  
Piravin Kumar Ramakrishnan ◽  
...  
Keyword(s):  
Systematic Review ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Meta Analysis ◽  
Anatomical Variations

Biological and anatomical factors influencing interindividual variability to noninvasive brain stimulation of the primary motor cortex: a systematic review and meta-analysis

2018 ◽  
Vol 29 (2) ◽  
pp. 199-222 ◽  
Author(s):  
Michael Pellegrini ◽  
Maryam Zoghi ◽  
Shapour Jaberzadeh
Keyword(s):  
Systematic Review ◽  
Motor Cortex ◽  
Brain Stimulation ◽  
Primary Motor Cortex ◽  
Interindividual Variability ◽  
Meta Analysis ◽  
Anatomical Variation ◽  
Anatomical Variations ◽  
Noninvasive Brain Stimulation ◽  
Stimulation Parameters

AbstractNoninvasive brain stimulation (NIBS) modifies corticospinal excitability (CSE) historically in a predictable manner dependent on stimulation parameters. Researchers, however, discuss high degrees of variability between individuals, either responding as expected or not responding as expected. The explanation for this interindividual variability remains unknown with suggested interplay between stimulation parameters and variations in biological, anatomical, and physiological factors. This systematic review and meta-analysis aimed to investigate the effect of variation in inherent factors within an individual (biological and anatomical factors) on CSE in response to NIBS of the primary motor cortex. Twenty-two studies were included investigating genetic variation (n=7), age variation (n=4), gender variation (n=7), and anatomical variation (n=5). The results indicate that variation in brain-derived neurotrophic factor genotypes may have an effect on CSE after NIBS. Variation between younger and older adults also affects CSE after NIBS. Variation between age-matched males and females does not affect CSE after NIBS, but variation across the menstrual cycle does. Variation between skull thickness and brain tissue morphology influences the electric field magnitude that ultimately reaches the primary motor cortex. These findings indicate that biological and anatomical variations may in part account for interindividual variability in CSE in response to NIBS of the primary motor cortex, categorizing individuals as responding as expected (responders) or not responding as expected (nonresponders).

Prevalence of Accessory Branches and Other Anatomical Variations in the Radial Artery Encountered during Radial Forearm Flap Harvest: A Systematic Review and Meta-analysis

2020 ◽  
Vol 36 (09) ◽  
pp. 651-659 ◽  
Author(s):  
Ryan D. Hoffman ◽  
Denise M. Danos ◽  
Samuel J. Lin ◽  
Frank H. Lau ◽  
Peter S. Kim
Keyword(s):  
Systematic Review ◽  
Cohort Studies ◽  
Radial Artery ◽  
Case Reports ◽  
Meta Analysis ◽  
Anatomical Variations ◽  
Radial Forearm Flap ◽  
Anatomical Variants ◽  
Radial Forearm ◽  
Allen Test

Abstract Background Harvest of the radial forearm flap (RFF) for reconstructive surgery is proceeded by the Allen test to assess for adequate contralateral perfusion of the hand, yet the Allen test may fail to detect anatomical variations in the radial artery such as aberrant branching. Therefore, the goal of this study was to systematically review the literature regarding anatomical abnormalities of the radial artery that can affect flap harvest and to perform a meta-analysis to estimate the prevalence of such abnormalities. Methods A systematic review of the literature was conducted using five online databases to identify all instances of radial artery anatomical variations. Abstracts were reviewed and categorized into either (1) large cohort studies of anatomical variations identified by angiogram or (2) case reports specifically mentioning anomalous or accessory branches of the radial artery. Data from the large cohort studies were included in a random effect meta-analysis to estimate the prevalence of such variations. Results Eighteen angiogram cohort studies containing a total of 18,115 patients were included in the meta-analysis. Accessory branches were the least common anatomical variant reported, with an estimated average prevalence of 0.5%. Prevalence estimates for more common anatomical variants, including radial artery loops (0.9%), stenosis (1.3%), hypoplasia (1.9%), tortuosity (4.3%), and abnormal origin (5.6%), were also calculated. Thirteen case reports detailing anomalous branches of the radial artery were identified, seven of which involved accessory branches encountered during RFF harvest with no incidence of flap loss. Conclusion Radial artery accessory branches are exceedingly rare, but the prevalence of other anatomical variations that can affect harvest of the RFF warrants consideration. We recommend surgeons consider comprehensive screening prior to RFF harvest to avoid intraoperative discovery of anatomical variants and suggest a low threshold for repeat perfusion testing intraoperatively if radial artery accessory branches are encountered.

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