Ibrahim Hakan Oygucu

Uludag University, Bursa, Bursa, Turkey

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Publications (6)3.94 Total impact

  • Source
    I. Ari, I.H. Oygucu, E. Sendemir
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    ABSTRACT: Squatting is a resting postural complex that involves hyper-flexion at the hip and knee joints, and hyper-dorsiflexion at the ankle and subtalar joints. The effects of squatting stress may induce bone remodeling. Different incidences of these modifications reflect the life style of a population. Stress-induced bone remodeling may be the result of physical and sports performance, especially that of women. We investigated 125 tibia from adult male skeletons from the late Byzantine period (13th century) to see if they had squatting facets or not. Thirty-one tali pairing tibia were also investigated concerning their relationship with the squatting facets of these bones. There were 64 right (51.2%) and 61 left (48.8%) tibia and squatting facets were observed on 30 right (46.9%) and 30 left (49.2%) tibia. Among the 25 paired tibia investigated, squatting facets were seen on 9 (36%) pairs and there was no evidence of side predilection. On the right side, squatting facets occurred on 3 (20%) tibia-tali; on the left side they were present on 7 (43.7%) tibia-tali, and only one tibia had the squatting facet and tali had none. The occurrence of squatting facets in this Byzantine population was greater than that reported for modern Europeans, but less than for Australians and Indians. Therefore, different factors can play a role in the modifications of the distal tibia surface, articulating with the talus.
    European Journal of anatomy, ISSN 1136-4890, Vol. 7, Nº. 3, 2003, pags. 143-146. 01/2012;
  • I. Ari, M. A. Kurt, I. H. Oygucu, E. Sendemir
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    ABSTRACT: The presence of a bony bridge in the (bridging trait) hypoglossal canal, with five different modes, was investigated in 25 adult male Byzantine (13th century) skulls. First, we re-evaluated the viability of proposed classification schemes, then for the first time, provided information on the structural features of this part of the occipital bone in a population of Asia Minor. Analysis of the data revealed minor differences in the Byzantine population compared to those previously investigated. Diverse geographical sources may be beneficial in understanding the role of developmental and genetic factors in bridging trait. Copyright © 2005 John Wiley & Sons, Ltd.
    International Journal of Osteoarchaeology 04/2005; 15(2):140 - 145. · 0.95 Impact Factor
  • Senem Turan-Ozdemir, Ibrahim Hakan Oygucu, Ilker Mustafa Kafa
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    ABSTRACT: During dissection of the submental region of a male cadaver, we encountered an abnormal digastric muscle on both sides. Two muscle bundles, both of which fused with mylohyoid muscle close to the midline, were observed on the right side. The anterior one originated from the digastric fossa and its length and width were 27 and 9 mm, respectively. The posterior accessory belly originated from the right intermediate tendon and it was 32 mm in length and 11 mm wide. On the left side, there was a single accessory bundle that originated from the left intermediate tendon and inserted into the mylohyoid raphe at the fusion point of the right accessory bundles. The length and width of this belly were 29 and 9 mm, respectively. The remaining suprahyoid muscles of both sides were normal. Anatomical variations of digastric muscle have to be considered in the imaging procedures of the soft tissue masses in the submental region.
    Anatomical Science International 07/2004; 79(2):95-7. · 0.63 Impact Factor
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    ABSTRACT: MRI is an important research tool which enables to investigate the brains of neuropsychiatric patients in vivo. In our study we tried to measure the volumes of some limbic system structures in the normal population to be utilized for further MRI morphometric studies in neuropsychiatry. We measured the volumes of hippocampus and corpus amygdaloideum (amygdaloid body), and the widths (thickness) of fornix and corpus mammillare (mammillary body) in 42 healthy volunteers without any neuropsychiatric pathology. The 1.5 T MRI was taken at oblique coronal plane using a section thickness of 3 mm without any gap. The volumes of hippocampus and corpus amygdaloideum were normalized according to intracranial area. We also investigated right-left volume differences for hippocampus and corpus amygdaloideum and set a formula as % difference rate for fornix and corpus mammillare width. We found the right hippocampus and corpus amygdaloideum larger than the left. No sex effect were evaluated. In addition, the larger hippocampus did not mean larger fornix. As a conclusion, the MRI morphometric data for normal population and the relations of this data with certain parameters such as side, sex, age must be collected to assess the pathological values in MRI morphometry. Key words: limbic system, morphometry, MRI, hippocampus, amygdaloid body, fornix, mammillary body, volume, width
    02/2004;
  • Source
    K Yucel, B Hakyemez, M Parlak, IH Oygucu
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    ABSTRACT: MRI is an important research tool which enables to investigate the brains of neuropsychiatric patients in vivo. In our study we tried to measure the volumes of some limbic system structures in the normal population to be utilized for further MRI morphometric studies in neuropsychiatry. We measured the volumes of hippocampus and corpus amygdaloideum (amygdaloid body), and the widths (thickness) of fornix and corpus mammillare (mammillary body) in 42 healthy volunteers without any neuropsychiatric pathology. The 1.5 T MRI was taken at oblique coronal plane using a section thickness of 3 mm without any gap. The volumes of hippocampus and corpus amygdaloideum were normalized according to intracranial area. We also investigated right-left volume differences for hippocampus and corpus amygdaloideum and set a formula as % difference rate for fornix and corpus mammillare width. We found the right hippocampus and corpus amygdaloideum larger than the left. No sex effect were evaluated. In addition, the larger hippocampus did not mean larger fornix. As a conclusion, the MRI morphometric data for normal population and the relations of this data with certain parameters such as side, sex, age must be collected to assess the pathological values in MRI morphometry.
    Neuroanatomy. 01/2002;
  • Source
    I H Oygucu, M A Kurt, I Ikiz, T Erem, D C Davies
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    ABSTRACT: Remodelling of bone occurs in response to physical stress. Habitual squatting is associated with modifications of the neck of the talus (squatting facets) and its trochlear/malleolar surfaces (trochlear extensions), and individual populations exhibit different incidences of these modifications that reflect their lifestyle. The occurrence of talar modifications was therefore investigated in a population of late Byzantine (13th century AD) adult male skeletons. Lateral squatting facets occurred most frequently (37.7%), but medial (0.6%), combined (0.6%) and continuous (gutter-like) facets (0.6%) were also observed. Lateral (8.0%), medial (10.9%) and continuous (lateral/central/medial) extensions (4.6%) of the trochlear surface were all present in the late Byzantine population. There was no evidence of side dimorphism. The occurrence of lateral squatting facets in the late Byzantine population was greater than that reported for modern Europeans, but similar to that reported for some populations of modern Indians. The frequency of occurrence of trochlear extensions in the late Byzantine population was substantially less than in modern Indian populations, but similar to modern Europeans. Therefore, it is unlikely that precisely the same factors determine the expression of squatting facets and trochlear extensions.
    Journal of Anatomy 03/1998; 192 ( Pt 2):287-91. · 2.36 Impact Factor