Abstract:
Objective:The objective is to investigate the biomechanical conditions of the Posterior Vertebral Column Resection (PVCR) of the constructed scoliosis 3D finite element model. Methods:A patient with scoliosis was selected; before the PVCR orthopaedy, the patient was submitted to the radiography of normal and lateral full-length vertebral column scans and the total magnetic resonance imaging (MRI) scans; then, the idiopathic scoliosis model was constructed by the 3D finite element method, and the 3D finite element software utilized in the process of model construction included Mimics software, Geomagic Studio 12 software, and Unigraphic 8.0 (UG 8.0) software; in addition, PVCR orthopaedy was utilized to correct the scoliosis of the patient, and the biomechanical parameters, such as orthodontic force, vertebral body displacement, orthopedic rod stress, stress on the pin-bone interface of the vertebral body surface, and the stress on the intervertebral disc, were studied. Results:The 3D effective finite element model of scoliosis was successfully constructed by the Mimics software, the Geomagic Studio 12 software, and the UG 8.0 software, and the effectiveness was tested. PVCR orthopaedy could effectively solve the problem of scoliosis. The magnitude of the orthodontic force that a patient needed depended on the physical conditions and the personal orthodontic requirements of the patient. The maximum vertebral body displacement on the X-axis was the vertebral body L1, the maximum displacement on the Y-axis was the vertebral body T3, the maximum displacement on the Z-axis was the vertebral body T1, and the rang of orthopedic rod stress was 0.0050214e7 MPa to 0.045217e7 MPa, in which the maximum stress of 2 vertebral bodies in, above, and below the osteotomy area reached 0.045217e7 MPa, the stress on the pin-bone interface of the T10 vertebral body surface reached 11.83 MPa, and the stress of T8/T9 intervertebral disc reached 13.84 MPa. Conclusion:The 3D finite element model based on 3D finite element software was highly efficient, and its numerical simulation was accurate, which was important for the subsequent biomechanical analysis of PVCR orthopaedy. In addition, the vertebral stress of PVCR orthopaedy was different in each body part, which was mainly affected by the applied orthodontic force and the sites of the orthodontic area.
journal_name
Saudi J Biol Scijournal_title
Saudi journal of biological sciencesauthors
Chen X,Cai H,Zhang G,Zheng F,Wu C,Lin Hdoi
10.1016/j.sjbs.2019.12.005subject
Has Abstractpub_date
2020-02-01 00:00:00pages
695-700issue
2eissn
1319-562Xissn
2213-7106pii
S1319-562X(19)30291-8journal_volume
27pub_type
杂志文章abstract::The effect of fertilizer on yield and yield related traits studied in two consecutive years at two different locations. Three different doses of fertilizer (NPK) applied at the rate of 9:23:0, 18:46:12 and 27:69:25 respectively on sixteen chickpea, genotypes (Desi and Kabuli advance lines and commercial varieties). Da...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2020.11.014
更新日期:2021-01-01 00:00:00
abstract::Interest has increased over the last several years in using different methods for treating sewage. The rapid population growth in developing countries (Egypt, for example, with a population of more than 87 millions) has created significant sewage disposal problems. There is therefore a growing need for sewage treatmen...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2013.11.003
更新日期:2014-07-01 00:00:00
abstract::The current study aimed to investigate the important reproductive biology and morphology of A.m. jemenitica queens and drones through measuring the weight of virgin and mated queens, size and weight of spermathecae, weight of ovaries, number of ovarioles, quantity and viability of semen in queen and drones. Accordingl...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2018.10.012
更新日期:2019-11-01 00:00:00
abstract::The extracts prepared from various areal parts of the Adenium obesum (Forssk.) Roem. & Schult. (Family: Apocynaceae) including leaves, fruit and seeds ethanolic extracts and seed aqueous extract were evaluated against MCF-7 cells in order to investigate its potential of cytogenotoxicity and induction of apoptosis. The...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2018.12.014
更新日期:2019-03-01 00:00:00
abstract::The effects of exposing meat-type breeder eggs to magnetic field (MF) before incubation on hatchability traits (percents of hatchability and hatchability failures of eggs), chick weight at hatch, and post-hatch performance (weight gain, feed intake, and feed conversion ratio (FCR)) from 1 to 39 d of age were investiga...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2011.06.004
更新日期:2011-10-01 00:00:00
abstract:Background:Non-alcoholic fatty liver disease (NAFLD) is one of the hepatic disorders which is characterized by increasing fat deposits in the liver. This disorder may lead to elevation the activity of liver enzymes and is associated with obesity, dyslipidemia, hypertension, and type II diabetes. The aim of present stud...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2020.04.037
更新日期:2020-08-01 00:00:00
abstract::The interaction between Meloidogyne incognita (race 2) and Rhizoctonia solani (AG 4) in a root rot disease complex of green beans (Phaseolus vulgaris) was examined in a greenhouse pot experiment. Three week-old seedlings (cv. Contender) were inoculated with the nematode and/or the fungus in different combinations and ...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2015.04.008
更新日期:2015-09-01 00:00:00
abstract::Obesity is a chronic disorder that is associated with body mass index (BMI) of greater or equal to 30 kg/m2. The prevalence of obesity in the Kingdom of Saudi Arabia (KSA) is increasing at an alarming rate and is expected to reach 41% in men and up to 78% in women by 2022. Since chemokines are associated with involunt...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2019.03.006
更新日期:2020-01-01 00:00:00
abstract::Cancer is still remain as a global burden with the 18.1 million and 9.6 million new cases and mortlities, respectively estimated globally. Leukemia may arise at all ages varied from the infants to elders. In this exploration, we planned to evaluate the antiproliferative effect of D-pinitol on human leukemia MOLT-4 cel...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2020.06.034
更新日期:2020-08-01 00:00:00
abstract::Foodborne pathogens are one of the major cause of food-related diseases and food poisoning. Bacterial biofilms and quorum sensing (QS) mechanism of cell-cell communication have also been found to be associated with several outbreaks of foodborne diseases and are great threat to food safety. Therefore, In the present s...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2018.04.013
更新日期:2019-02-01 00:00:00
abstract::The goal of this study was to assess the antitumor efficacy and safety of lobaplatin-based regimens as the second line of treatment in patients with metastatic breast cancer (MBC) resistant to anthracyclines and taxanes, compared with that of cisplatin-based regimens. During August 2012 to April 2015, 87 patients who ...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2018.01.011
更新日期:2018-07-01 00:00:00
abstract:AIM:To compare the angular changes of the third molars relative to the occlusal plane and to the second molar long axis in extraction group and compare these changes with a non extraction group. MATERIALS AND METHODS:The study included pre and post treatment panoramic radiograph records of 90 subjects treated by first...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2016.02.006
更新日期:2016-11-01 00:00:00
abstract::A field experiment was conducted to investigate the effect of seed presoaking of shikimic acid (30, 60 and 120 ppm) on growth parameters, fruit productivity and quality, transpiration rate, photosynthetic pigments and some mineral nutrition contents of tomato plants. Shikimic acid at all concentrations significantly i...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2013.03.002
更新日期:2013-10-01 00:00:00
abstract::Osteoporosis and osteopenia has a significant link with substantial fracture risk. Epidemiological data revealed a protective role of adipose tissue on bone biology in postmenopausal osteoporosis. The current study assessed the associations between select adipokines and bone mineral density (BMD) in postmenopausal wom...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2019.10.007
更新日期:2020-01-01 00:00:00
abstract::Vector-borne diseases transmitted by mosquitoes and ticks are on the rise. The effective and sustainable control of these arthropod vectors is a puzzling challenge for public health worldwide. In the present review, I attempted to provide a concise and updated overview of the current mosquito and tick research scenari...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章,评审
doi:10.1016/j.sjbs.2018.06.007
更新日期:2019-07-01 00:00:00
abstract::Bamboo macromolecules were pretreated with bamboo vinegar, which has an antibacterial property, and processed into antibacterial bioboard (ABB) by hot pressing. The ABB was then analyzed by conducting Fourier-transform infrared spectroscopy, thermogravimetric analysis and differential thermal analysis. Results showed ...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2017.08.010
更新日期:2018-03-01 00:00:00
abstract::This study aimed to estimate the proximate, phenolic and flavonoids contents and phytochemicals present in seeds of twenty four soybeans (Glycine max (L.) Merr) genotypes to explore their nutritional and medicinal values. Crude protein composition ranged between 35.63 and 43.13% in Argentinian and USA (Clark) genotype...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2017.10.014
更新日期:2018-01-01 00:00:00
abstract::The paper aimed to screen out genetic markers applicable to early diagnosis for colorectal cancer and establish apoptotic regulatory network model for colorectal cancer, and to analyze the current situation of traditional Chinese medicine (TCM) target, thereby providing theoretical evidence for early diagnosis and tar...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2017.01.036
更新日期:2017-03-01 00:00:00
abstract::Numerical simulations are used to investigate the wake structure and hydrodynamic performance of bionic flapping foils. The study is motivated by the quest to understand the fluid dynamics of fish fins and use it in the underwater propulsion. The simulations employ an immersed boundary method that makes it possible to...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2016.09.015
更新日期:2017-09-01 00:00:00
abstract::In forensic science, the human identification is the major goal in criminal cases and in paternity dispute, based on DNA profiling of individual. Analysis of short tandem repeat (STRs) markers used as a reliable technique for this purpose. In this study the main objective was to develop a human identification based on...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2018.10.001
更新日期:2018-12-01 00:00:00
abstract::Tomato (Lycopersicon esculentum) is one of the widely grown vegetables worldwide. Fusarium oxysporum f. sp. lycopersici (FOL) is the significant contributory pathogen of tomato vascular wilt. The initial symptoms of the disease appear in the lower leaves gradually, trail by wilting of the plants. It has been reported ...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章,评审
doi:10.1016/j.sjbs.2019.06.002
更新日期:2019-11-01 00:00:00
abstract::Gelatin is used as an ingredient in both food and non-food industries as a gelling agent, stabilizer, thickener, emulsifier, and film former. Porcine skins, bovine hides, and cattle bones are the most common sources of gelatin. However, mammalian gelatins are rejected by some consumers due to social, cultural, religio...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2020.03.022
更新日期:2020-06-01 00:00:00
abstract::This study was conducted to determine the compatibility of Contans® (Coniothyrium minitans) with fungicides against Sclerotinia sclerotiorum. Results showed that both Contans® and Topsin® significantly reduced the disease incidence caused by S. sclerotiorum by 90% and 95% survival plants, respectively when they were i...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2016.01.038
更新日期:2017-02-01 00:00:00
abstract::This study was carried out to evaluate the anti-obesity effect of Vernonia amygdalina Del. (VA) supplemented diet. VA leaf powder was fed at 5% and 15% to diet-induced obese rats for 4 weeks and its effect compared with orlistat (5.14 mg/kg p.o.), an anti-obesity drug. Food intake, body and organ weights, total body f...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2012.05.003
更新日期:2012-07-01 00:00:00
abstract::This study aimed to analyze the incidence of malnutrition in patients with chronic kidney disease (CKD) at stage III-IV accompanied by hypothyroidism and indicate the improvement in nutritional status and kidney disease of CKD patients after undergoing thyroid hormone replacement (THR) therapy as therapeutic models. T...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2019.09.023
更新日期:2019-12-01 00:00:00
abstract::Stress has many biological effects on human daily life. In the present study, dietary protein intake was correlated with the investigated stress levels of nurses and housewives of the targeted urban population. Age group ranged from 30 to 45 years and both the groups belonged to middle socioeconomic status. After calc...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2011.02.002
更新日期:2011-07-01 00:00:00
abstract::We assessed the prevalence of methicillin-resistant Staphylococcus aureus (MRSA) strains on surfaces of hospital dental clinics. Specimens were obtained from 5 clinically symptoms-free patients of five different specialties clinics (Implantology, Pediatric Dentistry, Prosthetics, Restorative Dentistry, and Oral Medici...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2018.03.006
更新日期:2019-11-01 00:00:00
abstract::This context was investigated to determine in vitro antimicrobial, antioxidative, and anticancer traits of crude ethyl acetate extract of Streptomyces cangkringensis strain TSAS 04 isolated from soil sample of rhizosphere regions. The antimicrobial activity of ethyl acetate extract of strain TSAS 04 was determined aga...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2020.09.035
更新日期:2020-12-01 00:00:00
abstract::Vitamin D deficiency is a pandemic problem and an ever-increasing issue in human nutrition and health. Vitamin D (serum 25-hydroxyvitamin D) deficiency causes many health problems such as autoimmune diseases, Crohn's disease, diabetes, inflammation, asthma, hypertension, and cancer. Vitamin D3 (cholecalciferol) defici...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2020.08.008
更新日期:2020-11-01 00:00:00
abstract::In order to systematically study the predatory behavior and digestion regularity of spiders, real-time fluorescence quantification PCR technique was used to detect the number of CO-I genes in Pardosa pseudoannulata after it preyed on rice planthoppers in different temperatures within different periods. At 28 °C, 0, 1,...
journal_title:Saudi journal of biological sciences
pub_type: 杂志文章
doi:10.1016/j.sjbs.2017.01.046
更新日期:2017-03-01 00:00:00