Browsing by Author "Oguz, Ozkan"

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Anatomical assessment of chest radiographs
(2018) Ozsahin, Esin; Boyan, Neslihan; Kizilkanat, Emine; Demir, Senay; Pelin, Can; Soames, Roger W.; Oguz, Ozkan
Purpose: The aim of this study was to determine the frequency of anatomical parameters and their measurement as seen on normal posteroanterior (PA) chest radiographs in a Turkish population. Materials and Methods: We evaluated fifty normal PA chest radiographs of Turkish population adults. The frequency of anatomical parameters and their measurement with respect to the diaphragm was evaluated. Results: The frequency of anatomical parameters and their measurement with respect to the diaphragm is as follows: level (right side higher in 98%, left and right sides same level 2%), lobulation (88% absent, 12% present), eventration (98% absent, 2% present) and contour (90% smooth, 10% not smooth); level of hilum (right and left sides same level 52%, left side higher 36%, right side higher 12%); number of pairs of ribs (twelve 96%, unable to determine 4%); number of ribs superposing the lung parenchyma (seven 2%, eight 4%, nine 24%, ten 70%); distance from the lateral margin of the vertebral body to the aorta (16.44 +/- 4.35 mm); angle between the vertebral body and the aorticopulmonary line (16.04 +/- 3.110); the carina angle (58.46 +/- 11.130) and the cardiothoracic ratio (38.75 +/- 4.27). Conclusion: The data presented in this study may be useful in understanding normal thoracic structures. A knowledge of the normal anatomy as well as variations are significant for physicians in the assessment of chest radiographs.
Assessment of Scapular Morphometry
(2018) Ozsahin, Esin; Boyan, Neslihan; Kizilkanat, Emine; Soames, Roger W.; Oguz, Ozkan
The current study was undertaken to assess the incidence of different types of suprascapular notch, acromion dimensions and the lower and upper scapular angles. The suprascapular notch and variations of the acromion are clinically important in suprascapular nerve compression and subacromial impingement. Measurements were taken from 73 Anatolian dry scapulae of unknown age or sex. The suprascapuar notch was classified according to that of Rengachary et al. (1979). Its width and depth, the distance between supraglenoid tubercle and the deepest point of notch, as well as the upper and lower scapular angles were also determine measured. The type of acromion was assessed according to shape (type I (cobra), type II (square), type III (intermediate)) and tilt (type I (flat), type II (curve). Acromion length and the distance between acromion and coracoid process were also measured. The frequency of different types of suprascapular notch were type I (28.8 %), type II (23.3 %), type III (13.7 %), type IV (20.5 %), type V (2.7 %), type VI (5.5 %)and absence (5.5 %). Acromion type were type I (45.5 %), type II (7.5 %) and type III (47.0 %), acromion tilt type I (15.2 %), and type II (84.8 %). An understanding of the association between the anatomical structures of the scapula and morphometric measurements is clinically important.
Clinical significance of clavicle morphometry
(2018) Ozsahin, Esin; Erdem, Huseyin; Boyan, Neslihan; Oguz, Ozkan
Purpose: Clavicle is the bony link between upper extremity and the body. This study is undertaken to assess the anatomical structure of clavicle and to determine the morphometric measurements. Materials and Methods: Sixty-six clavicle of unknown gender of an Anatolian population (34 left-32 right) are included. Maximum claviculer length, the perimeter of the midpoint, the superior inferior and anterior posterior thickness of extremitas acromialis, the distance between the lateral border of the clavicle and the midpoint of linea trapezoidea, maximum length and width of impressio costoclavicularis, maximum length and width of fascies sternalis, maximum lengt hand width of facies acromialis and concave angle are measured in addition the Robustness index (endurance index) is calculated. Results: Maximum claviculer length was 136.19 +/- 13.41 mm; superior inferior thickness of extremitas acromialis was 10.59 +/- 2.15 mm; and anterior posterior thickness of extremitas acromialis was 21.62 +/- 3.87 mm; the distance between the lateral border of the clavicle and the midpoint of linea trapezoidea was 17.06 +/- 3.83 mm; maximum length of impressio costoclavicularis was 16.51 +/- 5.11 mm; and maximum width of impressio costoclavicularis was 8.07 +/- 2.88 mm; maximum length of fascies sternalis was 16.58 +/- 3.22 mm; and maximum width of fascies sternalis was 20.26 +/- 3.29 mm maximum length of fascies acromialis was 9.10 +/- 2.55 mm; maximum width of fascies acromialis was 14.74 +/- 3.43 mm; concave angle was 139.43 +/- 8.25 degrees; the perimeter of the midpoint of the clavicle was 3.57 +/- 0.46 mm and the Robustness index (endurance index) was calculated to be 2.63 +/- 0.32. Conclusion: Knowledge on the clavicular measurements may be essential for orthopaedic surgeons in acute displaced midshaft clavicle fractures and to choose a standart treatment modality in many other conditions.
The effect of alendronate sodium on trabecular bone structure in an osteoporotic rat model
(2017) Ozsahin, Esin Tokmak; Cam, Burcu; Dere, Fahri; Kurkcu, Mehmet; Evruke, Cuneyt; Soames, Roger; Oguz, Ozkan; 31453446
Objectives: This study aims to investigate the effect of alendronate sodium on trabecular bone structure in an osteoporotic rat model. Materials and methods: Between May 2006 and July 2006, 60 female Wistar Albino rats aged three months were randomly allocated to three groups: sham operated receiving no treatment (Shm); ovariectomized-alendronate receiving 1 mg/kg/day alendronate sodium (Ovx-A), and ovariectomized-vehicle receiving 1 mL/kg/day physiological saline (Ovx-PS). Both Ovx groups received treatment through gastric gavage for 56 days. Results: Densitometric measurements showed that bone mineral density decreased in the Ovx-PS and increased in Ovx-A groups (p<0.05). Biomechanical measurements showed a decrease in the breaking force in the Ovx-PS group and an increase in the Ovx-A group (p<0.05). Histomorphometric measurements showed that the Shm group had normal trabecular structure, while the Ovx-PS group had a less well-formed trabecular structure with a loss in the trabecular number and thickness and a corresponding increase in the trabecular spacing (p<0.05). In the Ovx-A group, there was an improvement in the trabecular structure with an increase in the trabecular number and thickness and a loss in the trabecular space (p<0.05). Conclusion: Our study results suggest that alendronate sodium is a valuable treatment agent for osteoporosis in postmenopausal women.
Evaluation of Face Shape in Turkish Individuals
(2016) Ozsahin, Esin; Kizilkanat, Emine; Boyan, Neslihan; Soames, Roger; Oguz, Ozkan
The aim of this study was to determine the types of face shape in the Turkish population. Knowledge on face shape is important in anthropology and for planning medical procedures such as in aesthetic, maxillofacial and orthodontic surgery. The study group consisted of 1003 healthy subjects (470 male, 533 female) aged 18-68 years. Mean height, weight and body mass index (BMI) were 1.74 m, 78.65 Kg, 25.80 +/- 3.50 kg/m(2) and 1.62 m, 60.55 kg, 22.87 +/- 3.49 kg/m(2) in males and females, respectively. Face length (FL; the distance from nasion to gnathion) and face width (FW; bizygomatic breadth) were measured, from which a Prosopic Index (PI) was determined using the following formula: (PI=FL/FW x 100). The types of face shape were classified according to Banister's classification Type I (hypereuryprosopic), Type II (euryprosopic), Type III (mesoprosopic), Type IV (leptoprosopic), Type V (hyperleptoprosopic) in both males and females. PI was 84.31 (FL: 12.07 cm; FW: 14.34 cm) in males and 85.25 (FL: 11.30 cm; FW: 13.28 cm) in females. In males and females Type I face shape was observed in 18.1 % and 15.6 %; Type II in 35.3 % and 34.3 %; Type III in 33.2 % and 34.3 %; Type IV in 8.7 % and 11.8 %; and Type V in 4.7 % and 3.9 %, respectively. The determination of types of face shape as presented in this study may be useful for aesthetic surgical procedures as well as medical and anthropological investigations.
Morphometric Measurement and Types of Articular Facets on the Talus and Calcaneus in an Anatolian Population
(2016) Boyan, Neslihan; Ozsahin, Esin; Kizilkanat, Emine; Soames, Roger; Oguz, Ozkan
Anatomical variations in terms of ligamentous attachments, articulations and bony morphology are common in the subtalar region. The shape of the articular facets of the talus and calcaneus and their relationship to each other are important for joint function and surgical procedures. In this study an assessment of the morphology of the articular facets of the talus and calcaneus, in an Anatolian population, was undertaken. 49 tali and 57 calcanei from Anatolian adults of unknown gender were examined. The types of articular facets on the talus and calcaneus were determined using the following classification: Type A1, the distance between the anterior and middle facets was less than 2 mm; Type A2, the distance between the anterior and middle facets was 2-5 mm; Type A3, the distance between the anterior and middle facets was more than 5 mm; Type A4, there was only one articular facet; Type B1, the separation between the anterior and middle facets was not complete; Type B2, separation of the anterior and middle facets was present; Type C, no separation between the anterior, middle and posterior facets was present, i.e. there was one articular facet. In addition, the anteroposterior length and width of the talus and calcaneus, together with the width, length and depth of sulcus tali and sulcus calcanei were determined. Left and right tali, respectively, displayed the folowing types of articular facet: A1, 0 %, 0 %; A2, 0 %, 3,4 %; A3, 0 %, 0 %; A4, 0 %, 0 %; B1, 60 %, 51,8 %; and B2, 40 %, 44.8 %. Articular facets on left and right calcanei, respectively, were: A1, 10 %, 7.4 %; A2, 10 %, 14.8 %; A3, 16.7 %, 11.1 %; A4, 3.3 %, 3.7 %; B1, 30 %, 22.2 %; B2, 30 %, 40.8 %. The length and width of left and right tali were 50.5 +/- 3.81 mm and 39.5 +/- 2.97 mm, and 53.1 +/- 4.38 mm and 39.3 +/- 3.66 mm, respectively. The width, length and depth of left and right sulcus tali were: 5.2 +/- 1.09 mm, 21.7 +/- 2.73 mm and 5.7 +/- 0.84 mm, and 6.1 +/- 2.05 mm, 21.1 +/- 3.66 mm and 5.7 +/- 1.52 mm, respectively. For left and right calcanei length and width were; 76.1 +/- 5.44 mm 44.0 +/- 3.97 mm, and 75.7 +/- 6.76 mm and 45.9 +/- 4.21 mm, respectively. The width, length and depth of left and right sulcus calcanei were: 6.4 +/- 1.19 mm, 31.9 +/- 2.76 mm and 4.0 +/- 0.81 mm, and 5.5 +/- 1.00 mm, 32.4 +/- 3.23 mm and 4.4 +/- 1.05 mm, respectively. The articular facets on both the talus and calcaneus in the Anatolian population studied was predominantly type B. This observations is similar to previous reports conducted in America, India and Africa, but differ from those undertaken in Europe. A knowledge of variations of the articular facets of the talus and calcaneus provides a valuable road map for orthopaedic surgeons, as well as others involved in foot rehabilitation.
Upper and Lower Lip Soft Tissue Thicknesses Differ in Relation to Age and Sex Grosores de los Tejidos Blandos de los Labios Superior e Inferior Difieren en Relación con la Edad y el Sexo
(2017) Bozdag, Zekiye Karaca; Kurkcuoglu, Ayla; Ustdal, Ayca; Cam, Yener; Oguz, Ozkan
This study was performed to determine age- and sex-related differences in lip thickness. Lateral cephalometric images of 220 healthy individuals were taken and the thicknesses of the upper and lower lips were measured. The measurements were performed in three different age groups. Our results indicate that the lower lip thickness, as well as the distance between the most anterior point of contact between the upper and lower lips and the most protruding point of the upper incisor teeth, differed between the two sexes. The lips of males were thicker than those of females. Receiver operating curve analysis was performed to determine the cutoff values to differentiate thickness between males and females. Our results showed that knowledge of upper and lower lips thickness in relation to age and sex may be beneficial to forensic anthropologists, to plastic and reconstructive surgeons, and to orthodontists for more detailed examination, effective treatment, and optimised outcomes.