Yazar "Buyukmumcu, Mustafa" seçeneğine göre listele
Listeleniyor 1 - 10 / 10
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe A Comparative Analysis of Surface Areas and Ratio of the Cervical Spinal Cord and the Vertebral Canal at the Same Levels Via MRI on Healthy Individuals(Soc Chilena Anatomia, 2014) Duman, Fatma; Ziylan, Taner; Kiresi, Demet; Cicekcibasi, Aynur Emine; Buyukmumcu, Mustafa; Duman, TolgaThe determination of the normal values of the cross-sectional surface areas and ratios of the vertebral canal and the spinal cord on the healthy individuals is of great importance with regards to the fact that it provides convenience for the doctors to make correct pathological diagnosis because of the most suitable treatment. In this study, it has been aimed to determine the respective ratios between the vertebral canal and the spinal cord via measuring their cross-sectional surface areas at the C3-C6 vertebra levels. The study has been implemented on the Magnetic Resonance Images (MRI) of the cervical vertebral column from healthy individuals at the Department of Radiology, Meram Faculty of Medicine, Necmettin Erbakan University. The study has been applied to 67 (50 female-17 male) individuals whose ages varied between 14 and 59 and these individuals have been divided into two groups as below and over 40 years of age. During the cervical MRI examination, axial and sagittal images have been evaluated and measurements have been made on the non-pathological axial images. The vertebral canal and the spinal cord surface areas have been calculated in square millimeters at the C3-C6 levels. Also, we calculated the ratio between the spinal cord surface area and the vertebral canal surface area. The obtained data has been transferred on the computer and statistical analysis has been implemented via SPSS package program (for Windows, 15.0). The summary of the data has been stated as Mean +/- SD. It has also been compared with regard to sex and age groups (below and over 40 years of age) using the Student t-test. The relationship between parameters has been evaluated by means of Pearson correlation test. No significant discrepancy (P>0.05) has been determined between the male and the female subjects in terms of the vertebral canal and spinal cord surface area values. On the other hand, at the C4, C5 and C6 levels, a significant discrepancy (P<0.05) has been observed between male and female subjects in terms of the ratio of spinal cord surface to the vertebral canal surface, stating that the male have it larger than the female. A positive correlation (P<0.01) between the surface area and ratio data of both sexes has been determined. We believe that the results of this study will be useful for the fields of neurology, neurosurgery and physical therapy and rehabilitation, particularly in evaluating spinal atrophy.Öğe Computed tomography based analysis of the lamina papyracea variations and morphology of the orbit concerning endoscopic surgical approaches(Assoc Brasileira Otorrinolaringologia & Cirurgia Cervicofacial, 2019) Acar, Gulay; Buyukmumcu, Mustafa; Guler, IbrahimIntroduction: Radiologic evaluation is mandatory to assess the type of endoscopic approach concerning sinonasal pathology and reconstruction of fractured defects before any treatment modalities are instituted related to medial wall of the orbit. Objective: The goal was to provide improved understanding of the lamina papyracea variations and the relationship with the orbital morphometry. Methods: This retrospective study was performed using computed tomography scans of 200 orbits and results were compared with respect to age, sex, laterality and LP variations. Results: Lamina papyracea variations were categorized as type A, 80.5% (161/200); type B, 16% (32/200); type C, 3.5% (7/200). For medial wall the anterior and posterior lamina papyracea heights and angles were found as 17.14 mm, 147.88 degrees and 9.6 mm, 152.72 degrees, respectively. Also, the length of the lamina papyracea, the mean area of the orbital floor, medial wall, lamina papyracea and orbital entrance were 33.3 mm, 7.2 cm(2), 6.89 cm(2), 4.51 cm(2) and 12.46 cm(2) respectively. The orbital height and width were measured as 35.9 mm and 39.2 mm respectively. The mean orbital cavity depth was 46.3 mm from optic foramen to the orbital entrance and the orbital volume was 19.29 cm(3). We analyzed the morphometric measurements tending to increase with aging and greater in men and the relationship of them with lamina papyracea types. Conclusion: Precise knowledge of the lamina papyracea anatomy using computed tomography is essential for safer and more effective surgery and preforming the dimensions of an implant. In this way, the postoperative complications can be decreased and the best outcome can be provided. (C) 2019 Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervico-Facial. Published by Elsevier Editora Ltda.Öğe Computed tomography evaluation of the morphometry and variations of the infraorbital canal relating to endoscopic surgery(Assoc Brasileira Otorrinolaringologia & Cirurgia Cervicofacial, 2018) Acar, Gulay; Ozen, Kemal Emre; Guler, Ibrahim; Buyukmumcu, MustafaIntroduction: The course of the infraorbital canal may leave the infraorbital nerve susceptible to injury during reconstructive and endoscopic surgery, particularly when surgically manipulating the roof of the maxillary sinus. Objective: We investigated both the morphometry and variations of the infraorbital canal with the aim to show the relationship between them relative to endoscopic approaches. Methods: This retrospective study was performed on paranasal multidetector computed tomography images of 200 patients. Results The infraorbital canal corpus types were categorized as Type 1: within the maxillary bony roof (55.3%), Type 2: partially protruding into maxillary sinus (26.7%), Type 3: within the maxillary sinus (9.5%), Type 4: located anatomically at the outer limit of the zygomatic recess of the maxillary bone (8.5%). The internal angulation and the length of the infraorbital canal, the infraorbital foramen entry angles and the distances related to the infraorbital foramen localization were measured and their relationships with the infraorbital canal variations were analyzed. We reported that the internal angulations in both sagittal and axial sections were mostly found in infraorbital canal Type 1 and 4 (69.2%, 64.7%) but, there were commonly no angulation in Type 3 (68.4%) (p < 0.001). The length of the infraorbital canal and the distances from the infraorbital foramen to the infraorbital rim and piriform aperture was measured as the longest in Type 3 and the smallest in Type 1 (p < 0.001). The sagittal infraorbital foramen entry angles were detected significantly smaller in Type 3 and larger in Type 1 than that in other types (p = 0.003). The maxillary sinus septa and the Haller cell were observed in 28% and 16% of the images, respectively. Conclusion: Precise knowledge of the infraorbital canal corpus types and relationship with the morphometry allow surgeons to choose an appropriate surgical approach to avoid iatrogenic infraorbital nerve injury. (C) 2017 Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervico-Facial. Published by Elsevier Editora Ltda.Öğe CT Evaluation of the Intraorbital Structures Concerning Endoscopic Approaches to the Lamina Papyracea(Amber Publication, 2018) Acar, Gulay; Buyukmumcu, Mustafa; Guler, IbrahimBackground: The relationship between the intraorbital structures and medial wall of the orbit is essential for surgical approaches. Objective: The goal was to provide an improved understanding of the dimensions of extraocular muscles and the approximate location of the intraorbital structures with respect to the lamina papyracea (LP). Material and Methods: This retrospective study was performed using the multiplanar reconstruction of Computed Tomography (CT) scans of 200 orbits. Results: We measured the mean diameters of intraorbital structures. The mean horizontal distances from LP to medial and inferior rectus muscles, globe, and infraorbital canal were found as 3.9 +/- 1.2 mm, 11.5 +/- 1.6 mm, 7.8 +/- 1.5 mm and 16.1 +/- 2.0 mm and as 0.6 +/- 0.4 mm, 4.7 +/- 1.3 mm, 7.2 +/- 1.8 mm, 12.5 +/- 2.3 mm at the depth of the anterior (AEF) and posterior ethmoidal foramen, respectively. All morphometric results were compared with respect to age, sex and laterality and higher in males than females. The measurement results indicated that subjects in first and second age groups showed statistically significant differences in distances from the LP to the globe, medial and inferior rectus muscles at the depth of AEF (p<0.05). But, there was no difference between right and left. Conclusion: CT imaging which can offer an accurate understanding of the regional anatomy of and around the LP may be helpful in preoperative planning and prediction of postoperative outcomes. It can allow the surgeon to prevent possible orbital injury during surgical interventions.Öğe An evaluation on the morphology of the nasal bone, piriform aperture, and choana on dry skulls(Wolters Kluwer Medknow Publications, 2020) Kabakci, Anil Didem; Saygin, Duygu Akin; Alpa, Serife; Buyukmumcu, Mustafa; Yilmaz, Mehmet TugrulIntroduction: Piriform aperture (PA) and nasal bone (NBs) are important structures that contribute to the formation of the nose. Both anatomic structures show differences based on ethnicity, gender, and age. Hence, it is widely used to determine sex in science branches such as anthropology and forensic medicine. Furthermore, morphometry of the PA and choana is an important criterion for physiological nasal respiration of individuals. Recognition of structural differences of PA, NB, and choana along with all this information becomes important during maxillofacial procedures to be performed especially in plastic and reconstructive surgery. The aim of the present study is to determine the individual differences in NBs, PA, and choana. Material and Methods: This study was conducted on 83 Turkish dried skulls and PA, NBs, and choana was examined as morphometrically. PA was classified into seven types and NB was classified into eight subtypes. Results: The most common type of PA was found type 5 (20%-24.1%) and the least most common type of PA was type 7 (4%-4.8%). Type 1 was determined as the most common observed shape of the NB. The mean width of the choana on the right and left sides was found 13.21 +/- 1.4 and 13.98 +/- 1.81 mm, respectively. Moreover, the mean height of the choana on the right and left sides was found 25.56 +/- 3.06 and 26.1 +/- 2.5 mm, respectively. Discussion and Conclusion: We believe that obtained data from our study will constitute a morphometric data set and will be useful in a wide range of fields from forensic science to reconstructive surgery.Öğe A Guideline for Femoral Nerve Block With the Age-Related Formulas Obtained From the Distances Between the Femoral Nerve and Surface Anatomical Landmarks in Fetal Cadavers(Soc Chilena Anatomia, 2022) Cihan, Emine; Buyukmumcu, Mustafa; Aydin-Kabakci, Anil Didem; Akin, Duygu; Gungorer, SuleThe femoral nerve (FN) is used for nerve block in many surgeries and provides effective postoperative analgesics in the pediatric population. However, although there are sufficient anatomical maps and signs for femoral nerve blockades in adults, there is not enough information for the pediatric group. Therefore, in our study, we tried to determine an effective area for safe block blocking with the help of bone structures in order to perform effective blockade in younger age groups. The study was conducted on 60 lower limbs. The exit point of the FN was identified. The measurements were examined in two regards, namely the level of the FN and the relationship of the FN with the surrounding structures. For the right and left sides, all the parameters showed increases with age. A significant relationship was found between all the parameters of the fetal cadavers (p<0.01). It was determined that there was a strong correlation between all parameters related to FN and surrounding bone structures (p<0.01).Sex was not found to be significantly related to the other parameters (p<0.05 Among all the fetal cadavers, high-level division was observed in six limbs (10 %), mid-level division in 33 limbs (55 %), and lower-level division in 21 limbs (35 %). Gestational age-based regression equations from my study showed that the site of the blockage could be effectively performed with the aid of palpable bone structures from the outside without the need for technical assistance.Öğe Morphological structure and variations of fetal lateral meniscus: the significance in convenient diagnosis and treatment(Springer, 2019) Kabakci, Anil Didem Aydin; Buyukmumcu, Mustafa; Akin, Duygu; Bilge, OnurPurpose The aim of this study is to evaluate of morphometry of the lateral meniscus (LM) and determine incidence of the LM shapes. Methods This study was performed on fetal cadaver collection of Anatomy Department of Necmettin Erbakan University. Fifty human fetal cadavers (25 female, 25 male human fetal cadavers) were used in this study. Microdissection was performed. Morphometric measurements were performed. LM were classified into four types and five subtypes. Results In this study, it was identified that all parameters which were measured were found to be increased with gestational ages. Four morphological types and five morphological subtypes were determined. It was found that 12% of the LM were crescent-shaped, 66% of the LM were C-shaped, 14% of the LM were incomplete-disc-shaped, 2% of the LM were disc-shaped, 6% of the LM were variant C-shaped. Conclusions A few studies on fetal meniscal anatomy and its development were performed. Each new study is important for having detailed anatomy and development of the fetal menisci which will have both clinical and anatomical impacts during childhood and adulthood for orthopedic surgeons and anatomists, respectively. The most important results of this study were the detailed objective analysis of the macroscopic fetal growth of LM. It was significantly observed that four morphological types and five morphological subtypes of LM. The results of the present study related with both the observation of morphological development of the fetal meniscal anatomy, and its morphological variants, are important in terms of improving our knowledge, and clinical approach on the description, and the management of the symptomatic lateral discoid meniscus tears in children, adolescents, and adults. The clinical relevance of this study was that this classification of fetal menisci could ameliorate our current understanding of the morphology of lateral meniscus in adult, further.Öğe Morphometric Analysis of Suprarenal Glands (Adrenal Glands) with Multislice Computerized Tomography(Soc Chilena Anatomia, 2017) Akin, Duygu; Yilmaz, Mehmet Tugrul; Ozbek, Orhan; Ozbiner, Huseyin; Cicekcibasi, Aynur Emine; Buyukmumcu, Mustafa; Kabakci, Anil DidemThe aim of our study are to determine the shape, vertebrae level, height, volume, corpus medial and lateral branch thicknesses of AG and the distance from some neighboring structures on multidetector computed tomography (MDCT) images and also to determine the relationship between these data and gender, age, height, weight and body mass index (BMI). The study was conducted on a total of 420 MDCT images consisted of 220 male (mean age 63.44 +/- 8.00, 50-81 years), 200 female (mean age 61.23 +/- 7.95, 50-84 years) healthy individuals. Vertebrae level of AG (VLAG), height of AG (HAG), adrenal gland volume (VAG), corpus thickness of AG (CTAG), medial section thickness of AG (MTAG) and lateral section thickness of AG (LTAG) were investigated. In our study, RAG were observed on T12 vertebrae level in 38.19 % of males and 42.5 % of females and LAG were also observed at that level in 39.55 % of the male and 51 % of the female individuals. RAG were observed in all males and 98.5 % of the females and LAG were observed 88.63 % of the males and 94 % of the females Y shaped. VAG were observed lower in males compared to females in age groups and VAG was observed increasing with age in males; decreased in 60-69 age group of females and increased again in 70 and plus age group. The aim of this study is to determine normal ranges of AG sizes and the relationship of each one with sex, age, height, weight and BMI.Öğe Transfer of the Fifth Finger to Replace an Amputated Thumb: A Preliminary Study(Sage Publications Inc, 2015) Ince, Bilsev; Gundeslioglu, Ayse Ozlem; Cicekcibasi, Aynur Emine; Dadaci, Mehmet; Inan, Irfan; Buyukmumcu, MustafaAmputation of the thumb causes not only loss of significant functional use of the hand but also psychological and social problems. The procedures of toe-to-thumb transfer, pollicization, or metacarpal extension are recognized and well-documented options in thumb reconstruction. Although these techniques have been successfully applied, they have some disadvantages. This study aims to test the feasibility of the fifth finger for thumb reconstruction. The fifth finger was released following exploration of the digital artery, vein, nerve, and flexor and extensor tendons, including the flexor retinaculum. The digital vein and the extensor tendon of the fifth finger were separated at the level of the metacarpophalangeal joint. The proximal phalanx of the fifth finger was cut smoothly at the level of the metacarpophalangeal joint with a saw. The deep flexor tendons, digital arteries, and nerves were preserved. The proximal phalanx of the released fifth finger was fixed to the first metacarpal bone. The digital vein of the first finger was anastomosed to the digital vein of the fifth finger by microsurgery. Angiography was done after the transfer. Exploration till the flexor retinaculum enabled thumb transfer without any restriction of movement in all 10 cadaver fingers. The average total surgical time was 135 +/- 12 minutes. Flow from both radial and ulnar arteries was demonstrated in the transferred fifth finger by angiography. The technique appears to be feasible for thumb reconstruction by preserving digital arteries and nerves in a relatively short time, but further important aspects have to be assessed in further clinical studies.Öğe Typing and Morphometric Analysis of the Pterion on Human Skull of Central Anatolia(Wolters Kluwer Medknow Publications, 2022) Saygin, Duygu Akin; Kabakci, Anil Didem Aydin; Alpa, Serife; Buyukmumcu, Mustafa; Yilmaz, Mehmet TugrulIntroduction: Pterion is seen in the norma lateralis of the skull and is shaped like the letter H. Pterional approach such as retro-orbital, sellar, sub-frontal, replate areas, anterior circulation, and olfactory meningiomas, tumors involving downstream of the frontal lobe such as the orbital, basilar artery aneurysm is a commonly preferred surgical approach. The present study focused on the typing of the pterion and morphometric measurements between the pterion and surrounding important anatomic spots. Material and Methods: The present study was performed with pterion typing of 107 skull (a total of 214 sides including the right and left sides) within Anatomy Laboratories of Necmettin Erbakan University, Meram Faculty of Medicine, and KTO Karatay University, Medicine Faculty. Distance between the pterion and some important (mid-point of the superior edge of the zygomatic arch, the anterior and posterior edge of the frontozygomatic suture, the tip of the mastoid process, and anterosuperior edge of suprameatal spine and asterion) spots were measured through a digital caliper in millimeter. In addition to the classification made by Murphy, three different classifications were made. The pterion was classified into seven types. Results: The rates of the types were sphenoparietal type by 55.60%, epipteric type by 3.73%, stellate type by 2.33%, frontotemporal type by 0.4%, wormian type by 5.14%, frontoparietal type by 8.87%, and frontoparietal sphenoidtype by 23.83%. Discussion and Conclusion: Morphometric characteristics of the pterion were detected in detail by the present study. Moreover, the knowledge of typing would serve as an important guide for surgical planning and procedures and may contribute to further anthropological studies. This study is aimed at the Central Anatolia population and can be conducted among other populations.
