İlhan OTAĞ - Academia.edu (original) (raw)

Papers by İlhan OTAĞ

Surgical and Radiologic Anatomy

Cumhuriyet Üniv. Tıp Fak. Derg., 2003

Folia morphologica, 2012

Recent studies show that the cerebellum contributes to higher cognitive functions as well as its ... more Recent studies show that the cerebellum contributes to higher cognitive functions as well as its role on motor system. It is thought that higher cognitive functions continue to develop during childhood and adolescence; therefore, cerebellum develops significantly during these periods. For that reason, this study was carried out in order to determine cerebellar volumes of 90 healthy individuals (40 males, 50 females) aged between 6 and 17 years according to their gender. The individuals were divided into three age groups of 6-9, 10- -13, and 14-17 years, and their cerebellar volumes were found by means of stereological methods using their magnetic resonance images. The cerebellar volumes found were compared among the groups without discriminating genders, among groups according to gender, and again according to gender within each age group. The general average cerebellar volume of the age group 10-13 years was significantly higher than the other two age groups(p 〈 0.05). When the gro...

Nigerian Journal of Clinical Practice, 2017

Aim: The human coccyx varies considerably in shape and size. The objective of this study was to i... more Aim: The human coccyx varies considerably in shape and size. The objective of this study was to investigate the morphology and morphometry of the coccyx on pelvic magnetic resonance imaging in asymptomatic individuals among Turkish adults. Materials and Methods: This study was conducted retrospectively on the pelvic magnetic resonance images of 456 adult patients without a history of trauma in the coccyx region. The coccygeal vertebrae count, number of bone segments, and intercoccygeal and sacrococcygeal joint fusions were determined from the sagittal plane images. In addition, the length and angles (the sacrococcygeal angle, intercoccygeal joint angle, and sacrococcygeal joint angle) were measured. Statistical Analysis Used: Data were analyzed using the T-test or Mann-Whitney U-test, the ANOVA, or Kruskal-Wallis tests, and the chi-square test was used for the categorical variables. Results: The coccyx is formed by four, five, or three vertebrae in a decreasing ratio. The coccyx is composed of one to five bone segments; one bone segment was found in 2.8% of the cases. Intercoccygeal joint fusions been observed predominantly in the last intercoccygeal joint, with or without sacrococcygeal joint fusion. The coccyx was found to be longer in adult males than in adult females. The sacrococcygeal angle might be anteverted or retroverted. Conclusion: The findings are contrary to the conventional knowledge in that the vertebrae shaping the coccyx were completely fused and consisting of a single bone in very few cases. Better understanding of the anatomical variation of the coccyx may be useful for clinicians evaluating patients presenting with conditions in the coccygeal region.

Nigerian Journal of Clinical Practice, 2014

Background: Data on central region morphometry of a child brain is important not only in terms of... more Background: Data on central region morphometry of a child brain is important not only in terms of providing us with information about central region anatomy of the brain but also in terms of the help of this information for the plans to be applied in neurosurgery. Objective: In the present study, central region morphometry of a child brain in mid-sagittal MR images was analyzed in age and gender groups. Materials and Methods: Different points determined previously, commissura posterior (PC) and the distances between cerebral cortex point (VCS) vertical to commissura anterior-commissura posterior line, sulcus centralis (CS), sulcus marginalis (MS), and the angle (α) between CS-PC-MS were determined and measured together with difference of gender in three different age groups (aged 6-9, 10-13, and 14-17). Results: Central region measures of the brains of boys aged 6-17 are higher than girls except for MS-PC distance. While VCS-PC, CS-PC, and MS-PC measures display a significant difference in the girls aged 14-17 when compared to the other age groups of 6-9 and 10-13 (P < 0.05), angle α is not significantly different in age and gender groups (P > 0.05). However, while VCS-PC, CS-PC and MS-PC distances show a significant increase in girls beginning from the age of 14, this increase is limited in boys. Conclusion: Morphometric differences observed in different age groups in boys and girls shall contribute our evaluation of the alterations in brain development in both of genders and shall be useful in preparation of surgical operation plans to be applied to the central region.

Interleukin-10 (IL-10) is an important anti-inflammatory cytokine increasing with exercise. It is... more Interleukin-10 (IL-10) is an important anti-inflammatory cytokine increasing with exercise. It is stated in the literature that the increase of IL-10 after exercise may be related to muscle damage. Creatine kinase (CK) is a dimeric protein whose plasma levels are increasing especially in muscle pathologies. At the same time, it is known that it increases relating to the muscle damage caused by exercise. In this study planned, it shall be researched there is IL-10 and CK values before and immediately after the exercise according to Bruce protocol. Moreover, the changes in White blood cells shall also be examined. Those who are convenient for the test were elected from 30 healthy voluntary males in the same age group who do sports amateurly and who don’t do sport. The subjects were applied to exercise test on a treadmill according to Bruce protocol, and the blood samples were taken into heparinize tubes before and after the exercise. Evaluations were made in biochemistry and microbiol...

Cumhuriyet Üniversitesi Fen-Edebiyat Fakültesi Fen Bilimleri Dergisi, 2017

Turkish Journal of Science and Health, Jan 29, 2021

Çimen), Tıp Fakültesi, Cumhuriyet Üniversitesi, TR-58140 Sivas Özet Amaç. Arteria femoralis alt e... more Çimen), Tıp Fakültesi, Cumhuriyet Üniversitesi, TR-58140 Sivas Özet Amaç. Arteria femoralis alt ekstremiteyi besleyen esas arterdir ve onun uyluğu besleyen a. profunda femoris dalını içine alan anatomik varyasyonlarla birlikte damar cerrahisinde önemli olan a. circumflexa femoris lateralis ve a. circumflexa femoris medialis dallarının orijin varyasyonlarının belirlenmesi için angiografik bir çalışma yapılmıştır. Yöntem. Bu araştırmada; Cumhuriyet Üniversitesi Tıp Fakültesi Radyoloji Anabilim Dalı Arşivinde bulunan 644 alt ekstremite anjiyografi filmi kullanılmıştır. A. femoralis'in dallarının orijin varyasyonlarına yönelik olan bu çalışmada Adachi'nin sınıflandırmasında bulunan 8 tip kullanılmıştır. Bulgular. Toplam 1036 alt ekstremiteden yaşları 5-87 (ortalama 46) 559 tanesi erkeklere, yaşları 5-83 (ortalama 44) 85 tanesi kadınlara aittir. Yapılan değerlendirmede Tip I %54,8 (568 / 1036) sıklıkla genel tiptir. Tip VIII %7,1 (74 / 1036) sıklıkla diğer çalışmalara göre yüksek...

Cumhuriyet medical journal, Mar 14, 2011

Aim. In this study, we aimed to investigate the possible changes of body composition and basal me... more Aim. In this study, we aimed to investigate the possible changes of body composition and basal metabolic rate in three phases of menstrual cycle by means of BIA technique in sportswomen. Method. We included twenty female students who are 19.8 ± 1.7 years of age, 1.7 ± 5.2 m tall and 53.7±5.5 kilograms of weight. The participants were all students at sport academy. The participants had normal and regular menstrual cycle (28 ± 2 days). Astrand's maximal bicycle ergometry test was applied to all of the participants. The body ergometry test was initiated by 50 watt and it was terminated with the top figure exhaustive point. TANİTA's TBF-300 body composition analizator was used and body mass index (BMI), basal metabolic rate (BMR), body mass fat, fat free mass (FFM), total body water (TBW) and total body fat percent (fat %) were analysed for each participant. Blood pressure, pulse and bioelectrical impedance (BIA) were measured just before and after exercises. Results. That there were no differences among the three phases of menstrual cycle regarding BMR measured just before and after exercises. We found that, BIA was high and TBW was low in luteal phase and FFM was decreased in follicular phase before exercise. BIA was increased after exercise in luteal phase. In early follicular phase FFM and TBW increased and body mass fat and fat % was decreased after exercise Although fat mass increased, BIA and fat % decreased just after the exercises in luteal phase. Conclusion. We think that the differences for body composition and BIA are because of TBW with menstrual cycle hormonal changes.

Australian Journal of Forensic Sciences, 2015

ABSTRACT Femora are a well preserved section of the skeleton after death. Therefore, they are com... more ABSTRACT Femora are a well preserved section of the skeleton after death. Therefore, they are commonly used in the field of forensic sciences, physical anthropology and anatomy. In addition, femur morphometry is helpful in finding sex or side (left or right) differences. The femur also shows characteristics of certain populations. Femur length is important for calculation of individual stature. In this study, the artificial neural network method was used to estimate femur length. In total, 230 femora exemplar were used. The three input parameters of the method were the distance between trochanter major top point and trochanter minor bottom point, the diameter of caput femoris and the diameter of collum femoris. By using these parameters, the artificial neural network estimation on femur length was performed. The results show that the method is capable of performing this estimation. In addition, sex discrimination was performed and achieved with 82% accuracy. As well as the identification of sex or side differences, morphometry of the proximal femur is necessary and important for surgical procedures.

Folia morphologica, 2011

Clinical symptoms caused by the elongated styloid process (SP) or calcified stylohyoid ligament w... more Clinical symptoms caused by the elongated styloid process (SP) or calcified stylohyoid ligament were first described by W. Eagle and they are now known as Eagle syndrome (ES). Normal length of SP was stated by Eagle as 2.5 cm. The objective of this study was to determine and discuss the length of SP and medial angulation degree with computed tomography (CT), which is an affective modality in the identification of ES, and a comparison with related studies. Three-dimensional (3D) images obtained from the axial CT scans of 22 cases (11 males and 11 females) aged between 24 and 80 years, who referred to Cumhuriyet University Hospital, Department of Radiology for multi slice CT with the pre-diagnosis of ES, were used. Lengths of the SP and medial angulations were measured on the obtained images. Inter- and intra-group comparisons were carried out using Wilcoxan and Mann-Whitney U tests. The mean length of the SP was found as 4.1 ± 1.1 cm. When inter- and intra-group lengths of the right ...

Journal of Mechanics in Medicine and Biology, 2022

The patellofemoral joint is one of the parts of the knee extension mechanism that plays a role in... more The patellofemoral joint is one of the parts of the knee extension mechanism that plays a role in the stability of the knee by enlarging the force arm of the quadriceps muscle and changing the direction of the muscle strength. For the entire knee joint to perform its task painlessly and functionally, the positions and strength of the muscles, the strength of the ligaments, and their reaction to movement must be compatible. The Insall–Salvati (Ins-Sal) index is useful for showing changes in patellar height produced by repositioning the tibial plateau, in other words, showing changes in patellar tendon length. Patella height is an important value to be taken into account in knee prosthesis surgery, tibial osteotomy, and anterior cruciate ligament reconstruction. The morphometric relationship between the reference measurements of the distal femur and proximal tibia and the position of the patella will be useful in determining the natural anatomy. In this study, we aimed to determine th...

Cumhuriyet Medical Journal, Dec 18, 2017

The data gathered objectively, and the information which is evidence-based is essential in evalua... more The data gathered objectively, and the information which is evidence-based is essential in evaluating both the sufficiency and the efficiency of medical education. Especially the feedback of students insights and suggestions is a good guidance for management of medical training. In this context, in the present study, it has been aimed to determine the thoughts and recommendations of 5th-grade Medical Faculty Students about Clinical Anatomy Course (CAC) by using a questionnaire which is consist of 12 questions. Method: A hundred and forty-four student (81 female and 63 male) volunteered to participate the study and took the questionary. Results: While 86.8 % of the students mentioned that it would be more necessary to take Clinical Anatomy Course during Orthopedics Course, 87.5 % of the student showed their preference for Neurosurgery Course. 75.7 % of the students suggested that it would also be beneficial to add CAC into the Eye Diseases and Otorhinolaryngology Practise in addition to those practices mentioned above. While the allotted time for CAC in the Clinical Practice was found sufficient to only 39.6 % of the student, 31.9 % asked for an increase in duration of CAC. According to 71.5 % of the students, the information should be solidified after the theoretical lectures by practices in which bones, manikins, and cadavers are used effectively. Giving attendance is not favored by 50 % of the students, and almost same amount of the participants (51.4 %) thinks the exam at the end of the class or the course is unnecessary. Conclusions: It has been understood from the positive feedback of the students that CAC which is currently taken during Orthopedics and Neurosurgery Courses facilitates the understanding Clinical Practise topics and it increases the overall success of the students in Clinic. While preparing the medical training curriculum, adding the CAC into the clinical training curriculums when needed may help to increase the overall quality of the medical education.

Biocybernetics and Biomedical Engineering, 2014

Özet Çalışmamızda Okul Öncesi Öğretmenliği öğrencilerinin İnsan Anatomisi ve Fizyolojisi eğitimi ... more Özet Çalışmamızda Okul Öncesi Öğretmenliği öğrencilerinin İnsan Anatomisi ve Fizyolojisi eğitimi ile ilgili görüşleri alınmış ve eğitim fakültesinde verilen İnsan Anatomisi ve Fizyolojisi eğitiminin gelecekte olası iyileştirmeleri değerlendirilmeye çalışılmıştır. Cumhuriyet Üniversitesi Eğitim Fakültesi Okul Öncesi Öğretmenliği öğrenci ilerine İnsan Anatomisi ve Fizyolojisi eğitimi ile ilgili çoktan seçmeli 24 soru bulunan bir anket formu dağıtılmış ve bu formları 270 öğrenci kendi istekleri ile cevaplayarak geri iletmişlerdir. Geri bildirimlerin güvenilirliği için öğrencilerden isim yazmamaları istenmiştir. Anket çalışmamıza katılan öğrencilerin % 60. 7'si İnsan Anatomisi ve Fizyolojisi dersine özenle devam ettiklerini ifade etmişlerdir. Öğrencilerin % 59. 6'sı dersin öğrenimi konusunda güçlük çektiklerini, % 87'si görsel eğitime daha fazla önem verilmesini söylemiştir. Çalışmamıza katılan öğrencilerin % 52. 2'si İnsan Anatomisi ve Fizyolojisi dersinde edindikleri b...

Prenatal steroid duzeylerinin parmak uzunluklarinin gelisiminde organizasyonel bir etkiye sahip o... more Prenatal steroid duzeylerinin parmak uzunluklarinin gelisiminde organizasyonel bir etkiye sahip olmasi, gelisimi cinsiyet hormonlarinin kontrolunde olan diger vucut karakterleri ile elin ikinci ve dorduncu parmak uzunluk oranlari (2P:4P) arasinda bazi iliskilerin olabilecegini dusundurmektedir. Bu calismada cinsiyete ozgu bazi antropometrik karakterler ile 2P:4P arasindaki iliskiler ele alinmistir. Cumhuriyet Universitesi'nde okuyan 240 ogrenci uzerinde yurutulen calismada ikinci ve dorduncu parmak uzunluklarinin yani sira, bireylerden agirlik, boy, bacak yuksekligi, omuz, kalca, dirsek, ayak, diz genisligi, gevsek/kasili ust kol cevresi, baldir cevresi, ayak uzunlugu, triseps, biseps, subskapular, supraspinal ve baldir deri kivrimi kalinligi olculeri alinmistir. Bulgular, goreceli olarak her iki cinsiyette de erkeksi bedene sahip bireylerin dusuk 2P:4P'ye, kadinsi bedene sahip olanlarin ise yuksek 2P:4P'ye sahip oldugunu ortaya koymaktadir. Sonuc olarak, sadece ergenlik...

Revista Argentina de Anatomía Clínica

Pterion is an irregular H letter shaped sutural confluence in the temporal fossa formed by fronta... more Pterion is an irregular H letter shaped sutural confluence in the temporal fossa formed by frontal, parietal bones, great wing of sphenoid bone and temporal squama. Pterion is classified in 4 types as follows: sphenoparietal, frontotemporal, epipteric and stellate. The pterion represents: anterior branch of the middle meningeal artery, middle cerebral artery, Broca's motor speech area, insula and stem of the lateral cerebral sulcus. This pterion junction has been used as a common extra-cranial landmark for surgeons in microsurgical and surgical approaches pertaining to important pathologies of this region. In the present study, our aim was to determine pterion types, to estimate distances between pterion and some special landmarks by which means to contribute to the related literature by comparing the data with other studies focusing on various populations. Pterion types identified by observation and measurements were taken by steel Vernier caliper. This study was conducted with 75 adult skulls (both sides 150 pterion). Skulls were classified with regard to gender as: 47 male and 28 female. Pterion types observed in both genders were classified as: sphenoparietal type 82% (84.04% in male, 78.57% in female), frontotemporal type 4.66% (5.31% in male, 3.57% in female), epipteric type 10.66% (8.51% in male, 14.28% in female) and stellate type 2.66% (2.12% in male, 3.57% in female). These findings will be usefull for clinicians, anthropologists and forensics.