scholarly journals Dynamic Instability in Young Adults with Symptomatic Hip Dysplasia: Analysis using a Computer-Assisted Image-Matching Procedure

2021 ◽  
Author(s):  
Hiroshi Imai ◽  
Yoshitaka Shiraishi ◽  
Shinichiro Sakai ◽  
Joji Miyawaki ◽  
Naohiko Mashima ◽  
...  
Keyword(s):  
Hip Joint ◽  
Image Matching ◽  
Soft Tissues ◽  
Dynamic Instability ◽  
Japanese Orthopaedic Association ◽  
Computer Assisted ◽  
Nonsurgical Management ◽  
Acetabular Head Index ◽  
Significant Difference ◽  
Matching Procedure

Abstract Background: Repeated microtrauma often causes damage to the periarticular soft tissues. This damage, together with the lack of acetabular bony coverage, such as developmental dysplasia of the hip (DDH), can contribute to various degrees of dynamic instability of the hip joint and cause progressive osteoarthritic changesThe purpose of this study was to use an image-matching procedure to compare dynamic instability of the hip joint in patients with DDH who did or did not undergo periacetabular osteotomy (PAO). Methods: Six patients (6 hips) with symptomatic DDH were enrolled. A 6-month trial of nonsurgical management was initiated at the first visit. PAO was performed in 3 patients who experienced persistent pain after conservative treatment. The dynamic instability of all 6 hips was evaluated. Results: Japanese Orthopaedic Association hip scores improved significantly in all hips regardless of PAO. At the first visit, the center-edge angle, Sharp angle, vertical-center-anterior angle, and acetabular head index were not significantly different between the PAO and non-PAO groups. Dynamic instability was defined as the 3D translation of the femoral head center for the acetabular center at hip abduction angles from 0° to 30°. In the non-PAO group, the mean sagittal, axial, and coronal translations were 2.4 mm, 2.2 mm, and 1.1 mm, respectively, and in the PAO group they were 2.4 mm, 7.2 mm, and 2.7 mm, respectively. There was a significant difference in axial translation between the 2 groups. Conclusion:Dynamic instability leads to periarticular soft tissue damage and insufficient bony coverage, and causes progressive osteoarthritic changes. Dynamic instability in the axial plane induces persistent hip pain after nonsurgical management. Affected patients should undergo PAO as soon as possible.

scholarly journals Does Diabetes Affect the Surgical Outcomes in Cases With Cervical Ossification of the Posterior Longitudinal Ligament? A Multicenter Study From Asia Pacific Spine Study Group

2021 ◽  
pp. 219256822199630
Author(s):  
Narihito Nagoshi ◽  
Kota Watanabe ◽  
Masaya Nakamura ◽  
Morio Matsumoto ◽  
Nan Li ◽  
...  
Keyword(s):  
Multicenter Study ◽  
Surgical Outcomes ◽  
Hemoglobin A1c ◽  
Perioperative Complications ◽  
Japanese Orthopaedic Association ◽  
Posterior Longitudinal Ligament ◽  
Asia Pacific ◽  
C5 Palsy ◽  
Significant Difference ◽  
The Impact

Study Design: Retrospective multicenter study. Objectives: To evaluate the surgical outcomes of cervical ossification of the posterior longitudinal ligament (OPLL) in diabetes mellitus (DM) patients. Methods: Approximately 253 cervical OPLL patients who underwent surgical decompression with or without fixation were registered at 4 institutions in 3 Asian countries. They were followed up for at least 2 years. Demographics, imaging, and surgical information were collected, and cervical Japanese Orthopaedic Association (JOA) scores and the visual analog scale (VAS) for the neck were used for evaluation. Results: Forty-seven patients had DM, showing higher hypertension and cardiovascular disease prevalence. Although they presented worse preoperative JOA scores than non-DM patients (10.5 ± 3.1 vs. 11.8 ± 3.2; P = 0.01), the former showed comparable neurologic recovery at the final follow-up (13.9 ± 2.9 vs. 14.2 ± 2.6; P = 0.41). No correlation was noted between the hemoglobin A1c level in the DM group and the pre- and postoperative JOA scores. No significant difference was noted in VAS scores between the groups at pre- and postsurgery. Regarding perioperative complications, DM patients presented a higher C5 palsy frequency (14.9% vs. 5.8%; P = 0.04). A similar trend was observed when surgical procedure was limited to laminoplasty. Conclusions: This is the first multicenter Asian study to evaluate the impact of DM on cervical OPLL patients. Surgical results were favorable even in DM cases, regardless of preoperative hemoglobin A1c levels or operative procedures. However, caution is warranted for the occurrence of C5 palsy after surgery.

Accurate Guidance for Percutaneous Access to a Specific Target in Soft Tissues: Preclinical Study of Computer-Assisted Pericardiocentesis

1999 ◽  
Vol 9 (3) ◽  
pp. 259-266 ◽  
Author(s):  
OLIVIER CHAVANON ◽  
CATHERINE BARBE ◽  
JOCELYNE TROCCAZ ◽  
LIONEL CARRAT ◽  
CHRISTOPHE RIBUOT ◽  
...  
Keyword(s):  
Soft Tissues ◽  
Preclinical Study ◽  
Computer Assisted ◽  
Specific Target ◽  
Percutaneous Access

The influence of advertising on children's buying behaviour: a case study in Slovakia

2021 ◽  
Vol 5 (3) ◽  
pp. 199-210
Author(s):  
Zuzana Hajduova ◽  
Nikoleta Hutmanova ◽  
Lubor Jusko ◽  
Ludovít Molitoris
Keyword(s):  
Social Media ◽  
Computer Assisted ◽  
Disruptive Effect ◽  
Buying Behavior ◽  
Significant Difference ◽  
Customer Segment ◽  
Social Media Platforms ◽  
Buying Behaviour ◽  
Advertising Literacy ◽  
Commercial Messages

Advertising is an essential tool in influencing the customer's buying behavior. However, customers tend to have various levels of understanding and decoding advertising messages. Even though children do not have purchasing power themselves, they still create a key customer segment that can influence the purchase decision of the whole family. The paper focuses on how media usage by children and their attitudes towards advertisements determines their buying behavior. The main purpose of the research is to present and describe how children's advertising literacy develops and its connection with the concept of the theory of mind. The relevance of the decision of this scientific problem is that according to several types of research, children are increasingly targeted through various advertising media. Even though their advertising literacy is not fully developed yet. However, nowadays, there is a growing importance of media in our lives and a need to socialize children as consumers because they represent a huge market for advertisers. An empirical study was carried out by designing a questionnaire filled by Slovak children between the ages of 11 and 15. The advertising impact and the degree of impact of the selected types of advertising media on children's consumer behavior were evaluated. The study involved the online method of computer-assisted web interviewing to investigate the influence of advertising media. The authors assessed the degree of the disruptive effect of the selected advertising media on children and the perception of a chosen medium within gender. The most and the least influential type of media were identified. The findings showed no significant difference within gender in the case of advertising media perception by children. The research empirically confirmed and theoretically proved commercial messages aimed at children through different kinds of traditional and electronic media. According to the results, children's buying behavior is mostly influenced by advertising on social media platforms. This type of media mostly integrates sponsored content which has a huge influence on decision making and forming future preferences. The research results can be helpful for further research of commercial messages of social media aimed at children and how those messages affect the whole family and children's future preferences.

Online teaching benefits and challenges during pandemic COVID-19: a comparative study of Pakistan and Indonesia

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Sahib Khatoon Thaheem ◽  
Mohamad Jafre Zainol Abidin ◽  
Quratulain Mirza ◽  
Habib Ullah Pathan
Keyword(s):  
Language Learning ◽  
Online Teaching ◽  
Developed Countries ◽  
Research Society ◽  
Computer Assisted ◽  
Online Classes ◽  
Structured Interviews ◽  
Public And Private ◽  
Content Type ◽  
Significant Difference

PurposeThe shift from physical class to online classes in the pandemic COVID-19 situation has posited opportunities as well as challenges for teachers and students. The primary purpose of this research is to investigate challenges faced and benefits availed by the teachers at the tertiary level in universities of Pakistan and Indonesia.Design/methodology/approachTo achieve the purpose a mixed-method approach is employed to answer the three research questions of the present study. The quantitative data is obtained from the responses of 66 teachers, teaching online in Mehran UET Pakistan and 102 teachers from Indonesian university. The personal, technological, and pedagogical challenges were analyzed by descriptive statistics on SPSS. Thus, the independent-samples t-test was run to test for statistically significant differences faced by teachers in both countries.FindingsThe findings revealed that there were no statistically significant differences found in personal, and pedagogical challenges faced by both countries' teachers, whereas there is a significant difference in facing technological challenges between Pakistani and Indonesian teachers. The benefits of online teaching were investigated qualitatively by conducting semi-structured interviews with 10 teachers 5 from each country. There are very positive aspects of online teaching revealed in the interviews.Research limitations/implicationsThe paper includes implications for the development of Computer Assisted Language Learning, the development of technology integrated courses, and for managing the balance between physical and online classes.Practical implicationsThe findings of the study have implications on finding out the solutions of the derived challenges, further it suggests to concentrate on students of public and private universities in Pakistan and Indonesia so that a comparison of challenges faced by teachers and faced by students can be researched and evaluated and it can generate significantly different results.Social implicationsThe implications on the research society and the teachers and designers' communities are very clear in this research because it paves the way forward towards the blending of technology in any way either synchronously/ asynchronously into education, further researches can be done on designing the new concepts, courses, instructional platforms for students and investigate the new dimensions and effects of them.Originality/valueFindings have value, because two countries' context (developing countries) with respect to the comparison of the challenges and benefits is better understood, it would have different results if had done in the developed countries.

Impact of supplementing commercial rabbit pellets with fresh Moringa oleifera leaves on semen characteristics in rabbit bucks under tropical climate in Trinidad

2021 ◽  
Author(s):  
Krishna Mohan Kumar
Keyword(s):  
Sperm Motility ◽  
Moringa Oleifera ◽  
Sperm Count ◽  
Control Group ◽  
Computer Assisted ◽  
Group Iii ◽  
Group I ◽  
Significant Difference ◽  
Moringa Oleifera Leaves ◽  
The Impact

Objective This study aimed to evaluate the impact of the dietary supplement of Moringa oleifera leaves (MOL) on semen quality and characteristics in rabbits. Methods Eighteen (n=18) breeding bucks of New Zealand white, of similar age group, were used for the study. Three feeding regimes, (i) 100% commercial rabbit pellets (CRP)-Group I (ii) 90% CRP + 10% fresh MOL on a dry matter (DM) basis – Group II and (iii) 80% CRP + 20% fresh MOL on a DM basis – Group III, were adopted and the trial continued for 21 days. After adaptation to the diet, semen was collected from each buck and subjected to evaluation using a computer-assisted semen analyser. Results In Group III, the sperm count, normal sperm morphology, and sperm motility increased (52.0%) in comparison with the control (Group I; 50.1%). The inclusion of 20% Moringa oliefera in the diet (Group III) caused a significant increase (P<0.05) in semen concentration (Control =136.2 M/mL; Group III=297.2 M/mL). There was no significant difference (P>0.05) in sperm motility and semen volume among the groups. Conclusion The results suggest that supplementing commercial rabbit pellets with 20% fresh Moringa oliefera leaves on a DM basis can improve the quality and characteristics of semen in breeding bucks.

scholarly journals Regression of gestational diabetes induced cardiomegaly in offspring of diabetic rat

2009 ◽  
Vol 24 (4) ◽  
pp. 251-255 ◽  
Author(s):  
Honório Sampaio Menezes ◽  
Cláudio Galeano Zettler ◽  
Alice Calone ◽  
Jackson Borges Corrêa ◽  
Carla Bartuscheck ◽  
...  
Keyword(s):  
Body Weight ◽  
Wistar Rats ◽  
Weight Ratio ◽  
Diabetic Rats ◽  
Heart Weight ◽  
Diabetic Rat ◽  
Control Group ◽  
Computer Assisted ◽  
Significant Difference ◽  
Levene Test

PURPOSE: To compare body weight and length, heart weight and length, heart-to-body weight ratio, glycemia, and morphometric cellular data of offspring of diabetic rats (ODR) and of normal rats (control). METHODS: Diabetes was induced in 3 pregnant Wistar rats, bearing 30 rats, on the 11th day after conception by intraperitoneal injection of 50 mg/kg of streptozotocin. Six normal pregnant Wistar rats, bearing 50 rats, made up the control group. Morphometric data were obtained using a scale for the weight, length, heart and body measurements. Morphometric cellular data were obtained by a computer assisted method applied to the measurements of myocytes. Statistical analysis utilized Student's t-test, ANOVA and Levene test. RESULTS: Control offspring had greater mean body weight and length than offspring of diabetic rats (p < 0.001). Heart weight and length and heart-to-body ratios of newborn rats differed between groups at birth (p < 0.001), but showed no difference at 21 days. Mean nuclei area and perimetric value of the myocytes decrees throughout the first 21 days of life (p < 0.01) in the diabetic group. CONCLUSIONS: Heart hypertrophy on the offspring of diabetic rats at birth was demonstrated by the significant difference between the groups. After the eleventh day, no difference was found, which confirmed regression of cardiomegaly. The significant difference between the first and the 21th day of life, for nuclei area feature, demonstrate regression of cardiac hypertrophy in the offspring of diabetic rats.

scholarly journals The effectiveness of computers on vocabulary learning among preschool children: a semiotic approach

2016 ◽  
Vol 11 (1) ◽  
pp. 02 ◽  
Author(s):  
Tutku Basöz ◽  
Dilek Tüfekci Can
Keyword(s):  
Preschool Children ◽  
Foreign Language ◽  
Language Learning ◽  
Vocabulary Learning ◽  
Vocabulary Instruction ◽  
Foreign Language Learning ◽  
Computer Assisted ◽  
Instruction Group ◽  
Significant Difference ◽  
Semiotic Approach

Semiotics in foreign language learning has recently achieved some prominence as a theoretical foundation for language teaching and learning. Although there have been a number of research on the semiotics in foreign language learning, the practical use of semiotics in preschool classroom environment still remains unanswered. What is more, the effectiveness of computers on vocabulary learning among preschool children is still an obscure area, which attracts the attentions of researchers, scholars and practitioners. Thus, the present study aims to investigate whether there is a significant difference in preschool children’s vocabulary gain depending upon the computer assisted vocabulary instruction or the traditional vocabulary instruction both adopting a semiotic approach. The sample group of the study included 35 preschool children (5-years) who are studying at Balıkesir University Necatibey Faculty of Education Kindergarten. In this quasi-experimental study, the children were assigned to computer assisted vocabulary instruction group (16) or traditional vocabulary instruction group (19), which were the experimental and control groups. Before the experiment, the children were given a pre-test, which measured the number of target vocabulary the children had already known. While the experimental group learned the target vocabulary through computer-assisted instruction, the control group was taught the same target vocabulary via traditional vocabulary instruction. After the experiment, the same test was given to the children as the post-test. The results of the study showed that both instruction types were successful in teaching vocabulary and there was no significant difference between the groups in terms of their vocabulary gain. Keywords: Vocabulary learning; semiotic approach; computer assisted vocabulary instruction; preschool children; foreign language learning 

scholarly journals Comparison of Laminoplasty and Posterior Fusion Surgery for Cervical Ossification of Posterior Longitudinal Ligament

2021 ◽  
Author(s):  
Hiroaki Nakashima ◽  
Shiro Imagama ◽  
Toshitaka Yoshii ◽  
Satoru Egawa ◽  
Kenichiro Sakai ◽  
...  
Keyword(s):  
Cervical Myelopathy ◽  
Perioperative Complications ◽  
Clinical Status ◽  
Japanese Orthopaedic Association ◽  
Posterior Longitudinal Ligament ◽  
Posterior Fusion ◽  
Postoperative Outcomes ◽  
Intensity Change ◽  
Multivariable Logistic Regression Analysis ◽  
Significant Difference

Abstract This prospective multicenter study formed by the Japanese Ministry of Health, Labour and Welfare at 27 institutions aimed to compare postoperative outcomes between laminoplasty (LM) and posterior fusion (PF) for cervical ossification of the posterior longitudinal ligament (OPLL). Controversy exists regarding the role of instrumented fusion in the context of posterior surgical decompression for OPLL. Among the 479 patients enrolled, 189 (137 and 52 patients with LM and PF, respectively) were included and evaluated using the Japanese Orthopaedic Association (JOA) scores, the JOA Cervical Myelopathy Evaluation Questionnaire (JOACMEQ), and radiographical measurements. Basic demographic and radiographical data were reviewed, and the propensity to choose a surgical procedure was calculated. Preoperatively, patient backgrounds, radiographical measurements (K-line or cervical alignment on X-ray, OPLL occupation ratio on computed tomography, and increased signal intensity change on magnetic resonance imaging), or clinical status (JOA score and JOACMEQ) after adjustments showed no significant differences. The overall risk of perioperative complications was lower in LM (odds ratio [OR] 0.40, p = 0.006), and C5 palsy was significantly lower in LM (OR 0.11, p = 0.0002) than in PF. The range of motion (20.91° ± 1.05° and 9.38° ± 1.24°, p < 0.0001) in patients with PF was significantly smaller than in those with LM. However, multivariable logistic regression analysis showed no significant difference in JOA score, JOA recovery rate, or JOACMEQ improvement at two years. In contrast, OPLL progression was greater in LM group than in the PF group (OR 2.73, p = 0.0002). LM and PF for cervical myelopathy due to OPLL resulted in comparable postoperative outcomes at two years after surgery.

scholarly journals The Effect of Soft Tissue on Detecting Hip Impingement

2017 ◽  
Vol 13 (18) ◽  
pp. 57
Author(s):  
Mahshid Yazdifar ◽  
Mohammadreza Yazdifar ◽  
Ebrahim Esat
Keyword(s):  
Soft Tissue ◽  
Hip Joint ◽  
Soft Tissues ◽  
Impingement Angle ◽  
Bone Contact ◽  
Specific Patient ◽  
Hip Impingement ◽  
Contact Kinematics ◽  
Impingement Zone ◽  
Centre Of Rotation

Hip impingement is a hip associated abnormality and it reduces the activity of those affected and also it can result in osteoarthritis. Current clinical methods in detecting hip impingement known as FADIR test. This is a manual method and relies heavily on surgeons experience and the method is prone to error. The use of computational programmes are known to be more accurate and reliable as the kinematic of contact can easily be studied using the digitised bones of the hip joint assuming that the impingement is determined by bone to bone contact kinematics. Current impingement studies assume that the kinematics of hip joint can be studied by assuming the centre of rotation is fixed for hip joint. For highly conforming joints this assumption is acceptable but for cases where conformity is poor the presence of soft tissue and soft tissue loading becomes very important. The important need in orthopaedics field is to develop a model without too much simplification. All previous work on detecting impingement has ignored the factor of soft tissue. In this paper for the first time the complete computational model of hip with soft tissue has been used to detect the impingement in a specific patient. In this paper the femur, acetabulum, cartilage and ligaments of specific patients were modelled in MIMICs using both MRI and CT scan. 3D hip models with and without soft tissues of normal hip, hip with impingement and hip with impingement after reshaping were modelled. The hip models were imported to detect impingement zone and impingement angle. Our results show that the soft tissue in hip model affects hip impingement angle and hip biomechanics. This finding also shows that, if the boundary condition is closer to the real hip, then the results of computer-aided program will be more reliable.

scholarly journals Perbedaan Penyembuhan Luka Pasca Ekstraksi Gigi Antara Pasien Perokok Dengan Bukan Perokok Di RSGM Unsrat

e-GIGI ◽  
2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Lidia A. Kewo ◽  
Damajanty H.C. Pangemanan ◽  
Aurelia Supit
Keyword(s):  
Wound Healing ◽  
Tooth Extraction ◽  
Soft Tissues ◽  
P Value ◽  
Eligibility Criteria ◽  
Cross Sectional ◽  
Inflammatory Phase ◽  
Significant Difference ◽  
The Difference ◽  
Cross Sectional Design

Abstract: To date, there are lots of documentations about the adverse effects of smoking on the oral cavity. Albeit, smoking is still considered as a casual thing in our community. Chemicals contained in the cigarette smoke can irritate the gums and soft tissues of the mouth, thus inhibiting wound healing after tooth extraction. This study was aimed to determine the difference in post-extraction dental wound healing between smokers and non-smokers. This was a comparative analytical study with a cross sectional design. Samples were obtained by using total sampling method. Subjects consisted of 16 smokers and 16 non-smokers that fulfilled the study eligibility criteria. Their oral cavities were examined to check the signs of inflammation (calor, dolor, rubor, tumor, and functio laesa). The results showed that there was a difference in post-extraction wound healing in inflammatory phase between smokers and non-smokers. As many as 9.4% of smoker patients and 34.4% of non-smoker patients recovered at 7 days post extraction. The Mann Whitney U test showed a p-value of 0.005. In conclusion, there was a significant difference in post-extraction wound healing between smokers and non-smokers.Keywords: smokers, non-smokers tooth extraction, wound healing Abstrak: Kebiasaan merokok bukan merupakan hal asing di masyarakat walaupun banyak dokumentasi mengenai akibat buruk dari merokok terhadap rongga mulut. Bahan kimia yang terdapat dalam asap rokok dapat mengiritasi gusi dan jaringan lunak mulut sehingga menghambat penyembuhan luka pasca ekstraksi gigi. Penelitian ini bertujuan untuk mengetahui perbedaan penyembuhan luka pasca ekstraksi gigi antara pasien perokok dengan bukan perokok. Jenis penelitian ialah analitik komparatif dengan desain potong lintang. Pengambilan sampel menggunakan total sampling yang memenuhi kriteria penelitian. Terdapat sebanyak 16 orang perokok dan 16 orang bukan perokok sebagai subyek penelitian. Pemeriksaan rongga mulut dilakukan untuk melihat tanda-tanda inflamasi (kalor, dolor, rubor, tumor, dan fungsio laesa). Hasil penelitian menunjukkan terdapat perbedaan penyembuhan luka 7 hari pasca ekstraksi gigi pada fase inflamasi antara pasien perokok dengan yang bukan perokok; sebanyak 9,4% pasien perokok dan 34,4% pasien bukan perokok yang sudah sembuh. Hasil uji Mann Whitney U mendapatkan nilai p=0,005. Simpulan penelitian ini ialah terdapat perbedaan bermakna dalam penyembuhan luka pasca ekstraksi gigi antara pasien perokok dengan yang bukan perokokKata kunci: perokok, bukan perokok, ekstraksi gigi, penyembuhan luka

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