Browsing by Author "Loukas, Marios"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    The clinical anatomy of the communications between the radial and ulnar nerves on the dorsal surface of the hand
    (Springer, 2008-03) Loukas, Marios; Louis, Robert; Wartmann, Christopher; Tubbs, Robert Shane; Kramer, Jessica; Özdemir, Senem Turan; Uludağ Üniversites/Tıp Fakültesi/Anatomi Anabilim Dalı.; AAA-8734-2021; 18038353400
    Sensations of the dorsal surface of the hand are supplied by the radial and ulnar nerves with the boundary between these two nerves classically being the midline of the fourth digit. Overlap and variations of this division exist and a communicating branch (RUCB) between the radial and ulnar nerves could potentially explain variations in the sensory examination of the dorsal hand. The aim of this study was to examine the origin and distribution of the RUCB thereby providing information that may potentially decrease iatrogenic injury to this connection. We grossly examined 200 formalin-fixed adult human hands. A RUCB was found to be present in 120 hands (60%). Of the specimens with RUCBs, we were able to identify four notable types. Type I (71, 59.1%) originated proximally from the radial nerve and proceeded distally to join the ulnar nerve. Type II (23, 19.1%) originated proximally from the ulnar nerve and proceeded distally to join the radial nerve. Type III (4, 3.3%) traveled perpendicularly between the radial and ulnar nerves so that it was not possible to determine which nerve served as its point of origin. Type IV (18.3%) had multiple RUCBs arising from both the radial and ulnar nerves. With the continual development of new surgical techniques and the ongoing effort to decrease postoperative complications, it is hoped that this study will provide useful information to both anatomists and surgeons.
  • Thumbnail Image
    Item
    Facial asymmetry in young healthy subjects evaluated by statistical shape analysis
    (Wiley, 2008) Tubbs, Richard Shane; Loukas, Marios; Güney, İbrahim; Ercan, İlker; Özdemir, Senem; Etoz, Abdullah; Sığırlı, Deniz; Uludağ Üniversitesi/Tıp Fakültesi/Biyoistatistik Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Anatomi Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Plastik Cerrahi Ana Bilim Dalı.; 0000-0002-2382-290X; AAA-8734-2021; AAA-7472-2021; 6603789069; 18038353400; 6602256586; 24482063400
    Statistical shape analysis, a relatively a new method for biological research, compares body forms by using specific landmarks determined by anatomical prominences. In this study, we aimed to identify normal facial asymmetry between the right and the left sides of the face. Facial landmark data were collected from two-dimensional digital images of 321 young healthy subjects (150 males and 171 females). These data were analysed using Euclidean distance matrix analysis. The number of significantly asymmetric linear distances between the two halves of the face was greater in females than in males. We found that the left side of the face was most commonly dominant in both males and females. Such data may be useful in establishing a database for future similar studies.