End-to-side neurorrhaphy in the reconstruction of peripheral segmental neural loss: an experimental study.

Purpose: To evaluate the effects on peripheral neural regeneration of the end-to-side embracing repair technique compared to the autograft repair technique in Wistar rats.

Methods: Fifteen male Wistar rats were divided into three groups with five animals each: denervated group (GD), autograft group (GA), and embracing group (EG). For the evaluation, the grasping test, electroneuromyography (ENMG), and muscle weight assessment were used.

Do good things really come to those who wait? An analysis of the average time of acceptance in Brazilian surgery journals.

Purpose: To analyze the average time between submission and acceptance of national journals in seven Brazilian surgery journals from 2017 to 2022.

Methods: It consists of a cross-sectional and observational study with a quantitative approach to analyze the acceptance time of articles approved by Brazilian journals on general surgery and its subspecialties, including Acta Cirúrgica Brasileira, Jornal Vascular Brasileiro, Arquivos Brasileiros de Cirurgia de Digestiva, Revista do Colégio Brasileiro de Cirurgiões, Journal of Coloproctology, Revista Brasileira de Cirurgia Plástica, and International Brazilian Journal of Urology.

Results: The journals with the lowest average waiting times were Revista do Colégio Brasileiro de Cirurgiões, Acta Cirúrgica Brasileira, and Journal of Coloproctology, respectively, and, with the lowest interquartile range there is Acta Cirúrgica Brasileira.

The Effects of Hydrolyzed Collagen and Collagen Peptide in the Treatment of Superficial Chondral Lesions: An Experimental Study.

 To evaluate the effects of hydrolyzed collagen and collagen peptide in the treatment of superficial chondral lesions in rats.  This research employed 18 . A single intraarticular infiltration of sodium iodoacetate (2 mg solution) through the patellar ligament induced joint damage in previously anesthetized animals.

Association between the rs820218 Variant within the Gene and Rotator Cuff Rupture in an Amazonian Population.

Background: Rotator cuff disease is one of the leading causes of musculoskeletal pain and disability, and its etiology is most likely multifactorial but remains incompletely understood. Therefore, the objective of this research was to investigate the relationship of the single-nucleotide rs820218 polymorphism of the SAP30-binding protein (SAP30BP) gene with rotator cuff tears in the Amazonian population.

Methods: The case group consisted of patients who were operated on due to rotator cuff tears in a hospital in the Amazon region between 2010 and 2021, and the control group was composed of individuals who were selected after negative physical examinations for rotator cuff tears.

Anatomical description of the extratemporal facial nerve under high-definition system: a microsurgical study in rats.

Purpose: To describe the microsurgical anatomical aspects of the extratemporal facial nerve of Wistar rats under a high-definition video system.

Methods: Ten male Wistar rats (12-15 weeks old), without veterinary diseases, weighing 220-280 g, were used in this study. All animals in this study were submitted to the same protocol and by the same surgeon.

Do Brazilian medical journals reference Brazilian articles? A cross-sectional study.

Background: The quantity and quality of Brazilian scientific output increases decade by decade. However, there is a tendency to undervalue Brazilian journals, illustrated by the low number of citations compared with texts in international journals, with the tacit justification that foreign articles are of superior quality.

Objectives: To investigate the differences in numbers of citations of Brazilian and international periodicals in three Brazilian journals from 2016 to 2020.

Anatomical description of the ventral and dorsal cervical rootlets in rats: A microsurgical study.

Purpose: To describe the anatomical aspects of the cervical rootlets and to quantify the number of rootlets that compose C1 to T1.

Methods: Twenty male rats were used in this study. The dorsal rootlets from C1 to T1 were analyzed.

Anatomorphometry of the brachial plexus under high-definition system: an experimental study in rats.

Purpose: To study the anatomorphometry of the plexus brachialis (PB) of rats under a high-definition video system.

Methods: Ten male Wistar rats discarded from other research that did not interfere in the morphology of the animal, respecting the principle of reduction, were used. All animals were submitted to the same protocol.

Development and validation of a 3D laryngeal model in surgical skills training.

Objective: To present and validate a new simulation model for endoscopic phonomicrosurgery training as an improved teaching method.

Methods: A low-cost artificial model was assembled using 3D printing, silicone, and gelatin. The study was designed to test the model's ability to carry out training and teaching of endoscopic phonomicrosurgery.

A new anesthetic protocol to medullary nerve roots access in rats.

Purpose: To describe a new anesthetic protocol medullary and nerve roots access and in Rattus norvegicus.

Methods: Seventy female Wistar rats (n=70) were used. The animals were randomly divided into two laminectomy groups: cervical (n=40) and thoracic (n=30).

Criteria for assessing peripheral nerve injury. Behavioral and functional assessment in non-operated Wistar rats.

Purpose To evaluate the normality pattern in functional tests of peripheral nerves. Methods Sixty female and sixty male Wistar rats were submitted to vibrissae movement and nictitating reflex for facial nerve; grooming test and grasping test for brachial plexus; and walking tracking test and horizontal ladder test for lumbar plexus. The tests were performed separately, with an interval of seven days between each.

Novel Porcine Kidney-Based Microsurgery Training Model for Developing Basic to Advanced Microsurgical Skills.

Background:  Microsurgery training is critical to the practice of microvascular procedures in many surgical areas. However, even simple procedures require different levels of complex skills. Therefore, simulation-based surgical training, mainly in the area of vascular anastomosis, is of great importance.

Does the type of electrode affect the electromyoneurographic parameters in rats?1.

Purpose: To evaluate if the type of electrode (needle vs. surface) affects the electromyoneurography parameters in rats.

Methods: Twenty male rats were anesthetized, then compound muscle action potential were recorded using a Neuropack S1 MEB- 9400©.

Can Smartphones Be Used to Perform Video-Assisted Microanastomosis? An Experimental Study.

Background: Smartphone cameras are continuously improving. The present study aimed to evaluate the possibility of using smartphones' magnification system to perform microanastomosis in rats.

Methods: Fifteen rats were randomly divided into 3 groups, according to the magnification system used: Microscope, iPhone 7 smartphone, and Galaxy S7 smartphone.

[Not Available].

Vascular anastomoses are common procedures and are performed by most surgeons. Training is primarily conducted in human beings, which violates current ethical principles. This is because current training models are expensive and in short supply.

Morphofunctional evaluation of end-to-side neurorrhaphy through video system magnification.

Background: The surgical microscope is an essential tool for microsurgery. Nonetheless, several promising alternatives are being developed, including endoscopes and laparoscopes with video systems. However, these alternatives have only been used for arterial anastomoses so far.

Continuous versus interrupted suture technique in microvascular anastomosis in rats.

Purpose: To compare the continuous and interrupted suture technique on femoral artery on rats after vessel repair and 14 days after.

Methods: Twenty rats were operated randomly divided into two group matched according to the suture technique used: interrupted or continuous. We performed a femoral anastomosis on the right femoral artery.

High-Definition Video System for Peripheral Neurorrhaphy in Rats.

Background: Although all microsurgeries are based on the use of surgical microscopes, several alternative magnification systems have shown promising results. Improvements in image quality facilitated the use of video systems in microsurgeries with safety and accuracy. The aim of this study was to evaluate the use of a low-cost, video-assisted magnification system in peripheral neurorrhaphy in rats.

Morphometric analysis of rat femoral vessels under a video magnification system.

The right femoral vessels of 80 rats were identified and dissected. External lengths and diameters of femoral arteries and femoral veins were measured using either a microscope or a video magnification system. Findings were correlated to animals' weights.

Dominance of foreign citations in Brazilian orthopedics journals.

Objective: To evaluate whether there is any preference for citing journals from other countries to the detriment of Brazilian journals, in three Brazilian orthopedics journals.

Methods: All the references of articles published in 2011 by the journals Acta Ortopédica Brasileira, Coluna/Columna and Revista Brasileira de Ortopedia were evaluated to as certain how many of these came from Brazilian journals and how many from foreign journals.

Results: 3813 references distributed among 187 articles were analyzed.

The effect of low-intensity therapeutic ultrasound in induced fracture of rat tibiae.

Objective: To analyze the possible effects of low-intensity ultrasound on induced tibia fracture of rats in a dose commonly used in physical therapy treatments.

Methods: Twenty male Wistar rats were divided into two groups with 10 animals each. In the ultrasound group (USG), the animals were submitted to bone fracture and treatment with therapeutic ultrasound (TUS).