Yazar "Ünver Doğan, Nadire" seçeneğine göre listele
Listeleniyor 1 - 8 / 8
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Communications Between the Palmar Digital Branches of the Median and Ulnar Nerves: A Study in Human Fetuses and a Review of the Literature(Wıley, 2010) Ünver Doğan, Nadire; Uysal, İsmihan İlknur; Karabulut, Ahmet Kağan; Şeker, Muzaffer; Ziylan, TanerIn this study, median nerves (MNs) and ulnar nerves (UNs) were dissected in 200 palmar sides of hands (left and right) of 100 (50 male, 50 female) spontaneously aborted fetuses with no detectable malformations. The fetuses, whose gestational ages ranged from 13 to 40 weeks, were dissected under an operating microscope. The MN divided first into a lateral ramus and a medial ramus and then formed a common digital nerve. The first common digital nerve trifurcated in all of the studied cases. The branching patterns were classified into two types (Type 1 and Type 2) based on the relationship with the flexor retinaculum (behind/distal of it). A communication branch between the UNs and MNs in the palmar surface of the hand was found in 59 hands (29.5%). The proper palmar digital nerves were numbered from p1 to p10, starting from the radial half of the thumb to the ulnar half of the little finger, and these nerves exhibited six types of variations. The present data obtained from human fetuses will aid in elucidating the developmental anatomy of the nervous system and provide hand surgeons with a more complete anatomical picture to help them to avoid iatrogenic injuries.Öğe The Communications Between the Ulnar and Median Nerves in Upper Limb(2009) Ünver Doğan, Nadire; Uysal, İsmihan İlknur; Şeker, MuzafferThe basic anatomy of the median and ulnar nerves in the upper limb is well described in textbooks. Besides detailed anatomy of the communications between median and ulnar nerves was designed to help hand surgeons understand both anatomic variations and paradoxic complaints of sensory and motor loss of patients. Reports in the literature describe the four communicating branches between median and ulnar nerves in the upper limb. We would like to summarize previous studies in order to be understood properly and make general comments on this complex relationship between structure and innervation. © Neuroanatomy.Öğe Coronary Artery Variations and Median Artery in Turkish Cadaver Hearts(SINGAPORE MEDICAL ASSOC, 2010) Fazlıoğulları, Zeliha; Karabulut, Ahmet Kağan; Ünver Doğan, Nadire; Uysal, İsmihan İlknurIntroduction: This study examined the routes and variations of the left coronary artery (LCA), the right coronary artery (RCA), and their branches, as well as the frequency of a median artery in cadaver hearts. Methods: The hearts of 50 adult Turkish cadavers from various centres were dissected. Results: The LCAs branched out of the aortic sinus and had an average diameter of 4.44 +/-1.79 mm. They gave rise to two branches (bifurcation) in 46 percent, three branches (trifurcation) in 44 percent and four branches (quadrifurcation) in ten percent of the hearts. The median artery was identified in 27 hearts, with a mean diameter of 2.00 mm (standard deviation 0.67). The RCAs branched out from the right aortic sinus and had an average diameter of 3.32 +/-0.79 mm. The conus branch, classically known as a branch of the RCA, branched out from the RCA in 32 percent of the hearts and from the right aortic sinus in 68 percent. Right dominance was observed in 42 percent, left dominance in 14 percent, and equal dominance in 44 percent of the hearts. Myocardial bridges were found on the LCA branches in 22 of the 27 hearts in which the median artery existed. Conclusion: There is a close relationship between the existence of the median artery and myocardial bridges. This suggests that the median artery might be important in myocardial bridges, which exist in embryos but do not result in any clinical symptoms for many years in a large number of people.Öğe Evaluation of Uterine Artery Origins on Contrast-Enhanced Magnetic Resonance Images(Selçuk Üniversitesi, 2023 Ekim) Sevindik, Betül; Ünver Doğan, Nadire; Seçilmiş, Özlem; Uysal, Emine; Fazlıoğulları, Zeliha; Karabulut, Ahmet KağanBackground/Aims: The origin of the uterine artery varies widely. The branching patterns of the internal iliac artery are also quite variable. Branching of the internal iliac artery in different ways is important in pelvic surgery. In our study, fertile and infertile groups were created, and the arteries that gave rise to the uterine artery were examined. Methods: A total of 152 uterine arteries (n = 152) were evaluated retrospectively on 3D contrastenhanced magnetic resonance images. Based on the study of Gomez-Jorge, the types of origin of the uterine artery were obtained. With regards to the incidence of types, differences between the fertile and infertile groups were examined. Results: There was no statistically significant difference between the groups in terms of the incidence of origin types (p = 0.214). Based on the study of Gomez-Jorge, five different types of origins were obtained. The most common was type I (the uterine artery being the first branch of the inferior gluteal artery) origination. Conclusions: There are studies investigating the origin of the uterine artery in literature. We believe that our findings will also contribute to the body of knowledge available.Öğe Investigation and Review of Myocardial Bridges in Adult Cadaver Hearts and Angiographs(Springer France, 2010) Fazlıoğulları, Zeliha; Karabulut, Ahmet Kağan; Kayrak, Mehmet; Uysal, İsmihan İlknur; Ünver Doğan, Nadire; Altunkeser, Bülent BehlülPurpose We aimed to compare the myocardial bridges (MBs) both in the coronary angiography and cadavers. Morphological (length, thickness, deepness, the angle between the long axis of vessel and location) and angiographic properties (length, degree of systolic obstruction, frequency) of the MBs were evaluated in 50 adult cadaver hearts and in 1,321 cineangiograms. Myocardial bridges were observed in 32 of the cadaver hearts (64%) and 100 of cineangiograms (7.57%). It was observed that MBs caused significant coronary stenosis in 34 of 100 individuals leading to the prevalence of significant MB to be (2.5%) in angiography. The MBs that are above the left anterior descending artery in cadaver were classified as superficial MB (77.4%) and deep MB (22.6%). In cineangiogram, the average length of MB (MBL) was determined as 10.32 +/- A 4.62 mm. The presence of MB, MBL and degree of luminal narrowing were not associated with the age and gender. Deepness and thickness were a major determinant of significancy of systolic obstruction by MBs.Öğe Is the Rabbit Knee a Suitable Model for the Human Interphalangeal and Metacarphophalangeal Joints of the Hand?(TURKISH ASSOC ORTHOPAEDICS TRAUMATOLOGY, 2010) Karalezli, Nazım; Durduran, S. Savaş; Ogün, C. Tunç; Uysal, İsmihan İlknur; Ünver Doğan, Nadire; Öz, MehmetObjectives: The purpose of this study was to assess the suitability of the rabbit knee as a small joint model for the human interphalangeal and metacarphophalangeal joints of the hand. Methods: The proximal joint surface areas of 47 middle phalanges, the proximal and distal joint surface areas of 90 proximal phalanges, and the distal joint surface areas of 42 metacarpals of various human cadavers were calculated and compared with the distal femoral and proximal tibial joint surface areas of 20 knee of 10 New Zealand white rabbits by a photogrammetric method. Results: The mean joint surface area of the rabbit proximal tibia was larger than the proximal joint surface area of the middle phalanx, the distal joint surface area of the proximal phalanx, the proximal joint surface area of the proximal phalanx, and the distal joint surface area of the metacarpal. The mean joint surface area of the rabbit distal femur was larger than that of the middle phalanx, but similar to the proximal joint surface area of the proximal phalanx, and that of the distal metacarpal and distal proximal phalanx. Conclusion: The rabbit knee is not suitable model for the human interphalangeal and metacarphophalangeal joints of the hand. There is still a lack of an appropriate animal model for the small joints of the hand.Öğe Morphometric Evaluation of Thoracic Vertebrae Using Multidetector Computed Tomography in Patients with Scoliosis(Selçuk Üniversitesi, 2023 Ekim) Tatar, Mehmet Cengiz; Karabulut, Ahmet Kağan; Öztürk, Mehmet; Güleç, Ali; Fazlıoğulları, Zeliha; Ünver Doğan, NadireAim: Many people have congenital and acquired deformities associated with the vertebral column. Vertebral surgery is practiced in cases like scoliosis, traffic accidents, falling down from height, cancer, and disc hernia. We aimed to reduce morbidity and mortality by creating alternative predictions for surgery and treatment with the findings and results we obtained in our study in patients with scoliosis. Methods: Patients with scoliosis (eight male, eight female) who underwent thoracic vertebrae imaging by multidetector computed tomography at Selcuk University Faculty of Medicine between 2013 and 2017 and who were not operated and those without scoliosis (eight male and nine female) who underwent imaging for other reasons were retrospectively evaluated. The group aged >15 years was created in a similar way. Similarly, groups with thoracic X-ray and tomography were created; Cobb angles and the width, height, and distance between the dorsal tips of the transverse process were measured in 12 thoracic vertebrae. Lateral distances from the midline junction of the right lamina of vertebra to the lateral of the right transverse process and pedicle of vertebra junction were measured; measurements were repeated for the left side and recorded. Measurements were made in 780 thoracic vertebrae. Results: Mean Cobb angle of 8 in 10–14-year-old male patients with thoracic scoliosis was 30.9° and mean age was 13 years. Mean Cobb angle of 8 in 10–14-year-old female patients with thoracic scoliosis was 32.72° and the mean age was 12.75 years. Conclusion: Our findings will help for manufacturers create personalized screws and plates, and help surgeons make operational choices.Öğe Tavşan Diz Eklemi İnsan Elinin Metakarpofalengeal ve Interfalengeal Eklemleri için Uygun Bir Model Midir?(2010) Karalezli, Nazım; Durduran, Savaş S.; Ogün, Tunç C.; Uysal, İsmihan İlknur; Ünver Doğan, Nadire; Öz, MehmetAmac: Bu çalışmada, insan elindeki interfalengeal ve metakarpofalengeal eklemler için küçük eklem modeli olarak tavşan diz ekleminin uygunluğunun incelenmesi amaçlandı. Calışma planı: Farklı insan kadavradan 42 metakarpalin distal eklem yüzey alanı, 90 proksimal falanksın distal ve proksimal eklem yüzey alanı ve 47 orta falanksın proksimal eklem yüzey alanı ile 10 Yeni Zelanda beyaz tavşanının 20 dizinin proksimal tibia ve distal femur eklem yüzey alanları fotogrametrik yöntemle hesaplandı ve karşılaştırıldı. Sonuclar: Tavşan dizi proksimal tibia eklem yüzey alanı ortalaması, orta falanksın proksimal eklem yüzey alanından, proksimal falanksın distal eklem yüzey alanından, proksimal falanksın proksimal eklem yüzey alanından ve metakarpalın distal eklem yüzey alanından daha büyüktü. Tavşan femur distal eklem yüzey alanı ortalaması orta falanksınkinden daha büyük iken, proksimal falanksı n proksimal, metakarpalın distal ve proksimal falanksın distal eklem yüzey alanına benzerdi. Cıkarımlar: Sonuç olarak, tavşan diz eklemi ile insan elinin MP ve iP eklemleri arasında uyum bulunamamıştır. insan elindeki küçük eklemler için uygun bir hayvan modeli ihtiyacı devam etmektedir.
