Browsing by Author "Dinc, Ugur"

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Morphometric Features of the Latissimus Dorsi Muscle in Fetal Cadavers With Meningomyelocele for Prenatal Surgery
(Lippincott Williams & Wilkins, 2019) Beger, Orhan; Beger, Burhan; Dinc, Ugur; Hamzaoglu, Vural; Erdemoglu, Ece; Ozalp, Hakan
Purpose: Latissimus dorsi (LD) flaps are frequently used in the prenatal meningomyelocele (MMC) repairs; on that basis, this study aims to reveal the morphometric features of LD, thoracodorsal artery (TDA) and nerve (TDN) in fetal cadavers with MMC defects, with an anatomical perspective. Methods: The study was conducted on 7 formalin-fixed human fetal cadavers (4 males and 3 females) with MMC defects, aged from 18 to 27 weeks of gestation. The size of LD, TDA, and TDN including their area, length, and width were measured by a digital caliper and digital image analysis software. Our direct measurements were compared with the corresponding estimations of a previous study in the literature which provides regression formulae based on gestational age. Results: The fetal cadavers with MMC had bilateral LD. No significant differences were found in the numerical data of anatomical structures between the sides or the sexes. LD size (ie, area, length and width) was approximately 3% to 10% smaller in the fetuses with MMC defects than that of the normal fetuses. Unilateral LD flap in a 22-week-old fetus with a large MMC was evaluated as insufficient to close the defects. Conclusion: Ten percent shrinkage in the area of LD might be too critical to be disregarded by surgeons during the closure of MMC defects. The dimensional findings about LD (area, length, and width) may be helpful in planning of LD flap harvesting for the repairs of MMC.
Morphometric Properties of the Levator Scapulae, Rhomboid Major, and Rhomboid Minor in Human Fetuses
(Springer France, 2018) Beger, Orhan; Dinc, Ugur; Beger, Burhan; Uzmansel, Deniz; Kurtoglu, Zeliha
The main objective of this study is to showcase the growth dynamics of levator scapulae, rhomboid major, and rhomboid minor algebraically, to help plan surgeries on newborns and young infants. Twenty-five formalin-fixed fetuses (11 male-14 female) with a mean gestational age of 21.80 +/- 2.61 (range 18-27) weeks present in the inventory of Mersin University Faculty of Medicine Anatomy Department were dissected. Surface area of levator scapulae, rhomboid major, and rhomboid minor was calculated using digital image analysis software; width and length parameters were measured using digital calipers. Neither sex nor side significant differences were observed in relation with the numerical data of levator scapulae, rhomboid major, and rhomboid minor (p > 0.05). Algebraic parameters such as surface area, width and length were detected to exhibit a linear growth from 18th to 27th week. Linear functions for levator scapulae, rhomboid major and rhomboid minor surface areas were obtained as y = - 136.871 + 10.598 x age (weeks), y = - 480.567 + 33.147 x age (weeks) and y = - 128.090 + 8.843 x age (weeks), respectively. The results and data of this study can potentially be beneficial in planning of surgeries for many infancy diseases such as trapezius paralysis, obstetrical brachial plexus palsy, Sprengel's disease, or winged scapula. Linear functions calculated in this study are expected to provide a better understanding of the growth dynamics of levator scapulae, rhomboid major, and rhomboid minor in fetal term and more precise estimation of muscle sizes.
Quantitative and Neurovascular Anatomy of the Growing Gracilis Muscle in the Human Fetuses
(Lippincott Williams & Wilkins, 2018) Beger, Burhan; Beger, Orhan; Koc, Turan; Dinc, Ugur; Hamzaoglu, Vural; Kayan, Gulden; Olgunus, Zeliha Kurtoglu
This study is intended to obtain the algebraic growth dynamics of the gracilis in fetuses and determine the variations of neurovascular pedicle(s) of the gracilis, to aid infant surgeries. Forty fetuses (19 males and 21 females) were included in the study. Gestational mean age of the fetuses was 22.40 +/- 2.67 (range, 18-28) weeks. Numerical values were obtained using a digital caliper and a digital image analysis software. Linear functions for the surface area, width, anterior, and posterior margin lengths of the gracilis were calculated, respectively, as: y = -289.307+20.501 x age (weeks), y = -7.113 + 0.622 x age (weeks), y = -24.421 + 3.434 x age (weeks), and y = -24.397 + 3.314 x age (weeks). In addition, length and width of the gracilis tendon were calculated as y = -6.676 + 0.934 -age (weeks) and y = -0.732 + 0.074 -age (weeks), respectively. Parameters of the gracilis had no statistically significant difference regarding side and sex (P > 0.05). In all the specimens, the gracilis was innervated by the anterior branch of the obturator nerve. Blood supply of the gracilis was identified to be derived from 1 single artery in 38 sides of total 80 (47.5%), from 2 arteries in 36 (45%) and from 3 arteries in 6 (7.5%). In 74 sides (92.5%), the nerve was superficial to the main artery, whereas in 6 sides (7.5%), it was deeper. The data of the present study could be beneficial for surgeons in infant surgeries to treat conditions such as obstetrical brachial plexus paralysis, facial palsy, or anal incontinence. Linear functions can be utilized to better evaluate the growth course of the gracilis in fetuses and to predict the dimensions thereof. Additionally, comprehending the structure and recognizing the variations of the gracilis nerves and arteries can help to protect the neurovascular pedicle(s) of the gracilis during the operations.