Estudo morfométrico do atlas

Filho, Narcelio Mendes Ferreira; Arantes, Ricardo Lugon; Nascimento, André Ferreira do; Herrero, Carlos Fernando Pereira da Silva

doi:10.1055/s-0039-1700814

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…The work of Filho et al, 16 points out the optimal measurements for the Angle of the Atlas, as well as the appropriate location of C1 among humans, and its differences between sexes; and they specifically emphasize the importance of spinal stability to reduce the risk of problems and injuries.…”

Section: Discussionmentioning

confidence: 99%

Efecto de los trastornos musculoesqueléticos por el uso de pantallas de visualización en jóvenes universitarios

Hernández-Rodríguez,

Herrera-López,

Montiel-Flores

et al. 2023

Investigación en Discapacidad

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Introduction: the WHO in March 2020 declared COVID-19 as a pandemic, with the pronouncement that social distancing will be applied, then the lifestyle had to change, including learning activities that had to migrate to online using data display screens (DDS). However, prolonged use can generate severe health effects such as musculoskeletal disorders. Objective: analyze and correlate the different musculoskeletal disorders with prolonged use of DDS, as well as identify the possible injuries or postural modifications in university students during the COVID-19 pandemic. Material and methods: a cohort study was conducted with 65 students according to the selection criteria applied. X-ray plates (AP and lateral cervical spine) were taken from each of the participants. The radiological markings were carried out to assess and identify the presence of biomechanical alterations; comparisons were also made according to the use of DDS. Results: among the different types of DDS that the participants used, the highest percentage was for the smartphone, which they used in their bedroom for 9 to 10 hours per day. According to the ratio between the cervical angle and depth measurement, 75.4% of participants presented hypolordosis, and 72.3% presented extension or posteriority of C1. Conclusions: we demonstrated the presence of biomechanical alterations in the cervical spine derived from the prolonged use of DDS in university students, mainly in those who use smartphones for 8 to 10 hours. There is a significant correlation between the radiological markings of the cervical angle and the depth measurement, and a decrease in cervical curvature (hypolordosis). ResumenIntroducción: la OMS declaró como pandemia al COVID-19 en marzo de 2020, con el pronunciamiento de que se aplicará el distanciamiento social, entonces el estilo de vida tuvo que cambiar, incluyendo actividades de aprendizaje que tuvieron que migrar a online usando pantallas de visualización de datos (DDS, por sus siglas en inglés); sin embargo, el uso prolongado de éstas puede generar graves efectos en la salud, como trastornos musculoesqueléticos. Objetivo: analizar y correlacionar los diferentes trastornos musculoesqueléticos con el uso prolongado de DDS, así como identificar las posibles lesiones o modificaciones posturales en estudiantes universitarios durante la pandemia de COVID-19. Material y métodos: se realizó un estudio de cohorte con 65 estudiantes según los criterios de selección aplicados. Se tomaron placas de rayos X (AP y columna cervical lateral) de cada uno de los participantes. Se realizaron los marcajes radiológicos para evaluar e identificar las alteraciones biomecánicas, también se hicieron comparaciones según el uso de DDS. Resultados: entre los diferentes tipos de DDS que utilizaron los participantes, el mayor porcentaje de uso lo tuvo

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Section: Discussionmentioning

confidence: 99%

Efecto de los trastornos musculoesqueléticos por el uso de pantallas de visualización en jóvenes universitarios

Hernández-Rodríguez,

Herrera-López,

Montiel-Flores

et al. 2023

Investigación en Discapacidad

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“…The first method has a high risk for venous plexus injury that leads to a lot of intraoperative blood loss and postoperative occipital neuralgia due to C2 nerve root injury. 11 The other two methods can reduce intraoperative blood loss and postoperative occipital neuralgia but the anatomy of C1 can be the limitation for these methods.…”

Section: Introductionmentioning

confidence: 99%

Morphometric Study for C1 Pedicle Screw Placement in Thai Patients

Yuwakosol

2022

Asian J Neurosurg

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Background Traumatic atlantoaxial (upper cervical spine) leads to instability in weightbearing movement and neurological deficit. Presently, C1 (axial) lateral mass or pedicle screws for fixation are the most popular because of excellent mechanical performance for internal fixation. C1 pedicle screw fixation can reduce intraoperative blood loss and postoperative occipital neuralgia more than C1 lateral mass screws. However, screws cannot be inserted completely through the pedicle in some patients due to C1 size. Objective We aimed to determine the ideal pedicle screw entry point, angle of screw projection, and pedicle height in the Thai population. Methods Patient data were collected and measured using the INFINITT program at Mukdahan Hospital from September 2020 to June 2021. The C1 measurements, i.e., distance from the midline to the medial edge of the posterior arch (DPA) and medial edge transverse foramen (DTF), angle of screw projection, and length and height of the pedicle were recorded. Descriptive statistics and t-test were used to analyze the data. Results The mean Thai pedicle dimensions were DPA = 14.17 mm (range: 11.19–19.70 mm), DTF = 22.09 mm (range: 18.13–26.44 mm), ideal screw entry point = 18.13 mm (range: 15.19–22.00 mm), ideal angle of screw projection medial angulation = 2.67 degrees (range: 0–7 degrees), and height of posterior arch (pedicle) = 4.77 mm (range: 2.68–7.22 mm). Forty of 167 patients (24.0%) had a pedicle height less than 4.0 mm (bilateral 11 patients and unilateral 29 patients). Conclusions The ideal C1 pedicle screw entry point is approximately 18.13 mm from the midline. In the Thai samples with C1 pedicle height less than 4.0 mm, the screws cannot be inserted completely through the pedicle. Therefore, screw insertion should be partially through the pedicle (notching technique).

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