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Surgical and Radiologic Anatomy: SRA

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https://www.readbyqxmd.com/read/27913866/communicating-branches-between-lingual-and-hypoglossal-nerve-observation-using-sihler-s-staining-technique
#1
Joe Iwanaga, Koichi Watanabe, Tsuyoshi Saga, Yoko Tabira, Moriyoshi Nakamura, Christian Fisahn, R Shane Tubbs, Jingo Kusukawa, Koh-Ichi Yamaki
PURPOSE: Many dental procedures are at risk of injuring the lingual nerve. We performed this study to better elucidate the microanatomy that exists between the ipsilateral lingual and hypoglossal nerves so that iatrogenic injury can be avoided. METHODS: Adult human cadaveric tongues (ten sides) underwent Sihler's staining to identify the microanatomy between the lingual and hypoglossal nerves. RESULTS: The lingual nerve entered the middle part of the anterior two-thirds of the tongue from its lateral side and divided into two to four thick branches...
December 2, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27909799/thyroid-gland-visualization-with-3d-4d-ultrasound-integrated-hands-on-imaging-in-anatomical-dissection-laboratory
#2
John L Carter, Ankura Patel, Gabriel Hocum, Brion Benninger
PURPOSE: In teaching anatomy, clinical imaging has been utilized to supplement the traditional dissection laboratory promoting education through visualization of spatial relationships of anatomical structures. Viewing the thyroid gland using 3D/4D ultrasound can be valuable to physicians as well as students learning anatomy. The objective of this study was to investigate the perceptions of first-year medical students regarding the integration of 3D/4D ultrasound visualization of spatial anatomy during anatomical education...
December 1, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27885386/wrist-denervation-of-the-posterior-interosseous-nerve-through-a-volar-approach-a-new-technique-with-anatomical-considerations
#3
Stephan Grechenig, Surjit Lidder, Manuel Dreu, Claudia Dolcet, Lucy Marguerite Cooper, Georg Feigl
PURPOSE: Full or selective wrist denervation is an effective treatment for chronic wrist pain. In this cadaveric study, a volar approach for prophylactic denervation of the posterior interosseous nerve (PIN) and the anterior interosseous nerve (AIN) was assessed, which can simultaneously be performed during volar approaches for distal radius fracture fixation or in combination with metalwork removal. MATERIALS AND METHODS: In total 40 adult upper limbs, embalmed using Thiel's method, were investigated...
November 24, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27878340/anatomical-risk-evaluation-of-iatrogenic-injury-to-the-infrapatellar-branch-of-the-saphenous-nerve-during-medial-meniscus-arthroscopic-surgery
#4
Guillaume Koch, Agathe Kling, Nitin Ramamurthy, Faramarz Edalat, Roberto Luigi Cazzato, Jean-Luc Kahn, Julien Garnon, Philippe Clavert
PURPOSE: To determine the relationship of the medial meniscus with the infrapatellar branches of the saphenous nerve, the primary goal is to define and characterize different risk areas for these nerves during medial meniscus surgery. METHODS: After dissecting 20 embalmed cadaver knees, we defined 7 readily identifiable anatomical landmarks. For each knee, we recorded 2 morphological criteria and 16 measurements. RESULTS: The most common anatomical course is a main trunk that is 8 mm anterior to the tuberculum adductorium and 60 mm posterior to the midpoint of the medial patellar margin...
November 22, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27866248/microanatomy-of-the-brachial-plexus-roots-and-its-clinical-significance
#5
Li-Yuan Zhong, Ai-Ping Wang, Li Hong, Sheng-Hua Chen, Xian-Qin Wang, Yun-Cheng Lv, Tian-Hong Peng
PURPOSE: To provide the anatomical basis of brachial plexus roots for the diagnosis and treatment of brachial plexus root avulsion injury. METHODS: The morphological features of brachial plexus roots were observed and measured on 15 cervicothoracic spine of adult cadavers. The relationship of brachial plexus nerve roots and the surrounding tissues also were observed, as well as the blood supply of anterior and posterior roots of the brachial plexus. RESULTS: Origination of the nerve roots in the dorsal-ventral direction from the midline was fine-tuned at each level along the spinal cord...
November 19, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27864594/morphologic-classification-of-the-right-auricule-on-256-slice-computed-tomography
#6
Cai-Ying Li, Bu-Lang Gao, Tong Pan, Cheng Xiang, Xiao-Wei Liu, Hai-Qing Yang, Lan-Ying Yi, Qi-Bin Liao
PURPOSE: To investigate the shape of right auricule on 256-slice computed tomography (CT). MATERIALS AND METHODS: Five hundred people (250 men, age range 16-84 years) who had cardiac multidetector CT angiography were recruited in this study. All patients had normal sinus rhythm with normal blood pressure (<140/90 mmHg for systolic/diastolic pressure). The morphology of the right auricule was studied and compared after reconstruction of the raw images. RESULTS: All patients successfully had cardiac CT angiography (100%), and the right auricule morphology was divided into five types and nine subtypes, including Type I of triangular shape (Ia and Ib), Type II of M shape (IIa and IIb), Type III of L shape (IIIa and IIIb), Type IV of reverse L shape (IVa and IVb), and Type V of balanced shape...
November 18, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27858088/specific-branches-of-hypoglossal-nerve-to-genioglossus-muscle-as-a-potential-target-of-selective-neurostimulation-in-obstructive-sleep-apnea-anatomical-and-morphometric-study
#7
Philippe Delaey, Jérôme Duisit, Catherine Behets, Thierry Duprez, Pierre Gianello, Benoît Lengelé
PURPOSE: To determine the ideal implantation site for selective tongue neurostimulation in obstructive sleep apnea, anatomy of the distal branching of the hypoglossal nerve (HGN) was revisited. METHODS: The HGN distal course and intramuscular distribution to the tongue muscles were studied in 17 embalmed and 5 fresh heads (age 60-98, BMI 20-35). Medial branches supplying selectively the genioglossus (GG) muscle were identified. Then, the distinct bundles entering the oblique (GGo) and horizontal (GGh) parts of the GG were located...
November 17, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27858087/three-dimensional-analysis-of-the-proximal-humeral-and-glenoid-geometry-using-microscribe-3d-digitizer
#8
Wejdan H Owaydhah, Mohammad A Alobaidy, Abdulrahman S Alraddadi, Roger W Soames
PURPOSE: To understand the geometry of the proximal humerus and glenoid fossa to facilitate the design of components used in shoulder arthroplasty. The aim is to evaluate the geometry of the proximal humerus and glenoid fossa and their relationship using a MicroScribe 3D digitizer. METHODS: Scans and measurements were obtained from 20 pairs of dry proximal humeri and scapulae [10 female and 10 male cadavers: median age 81 years (range 70-94 years)] using a MicroScribe 3D digitizer and Rhinoceros software...
November 17, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27837265/unusual-foramen-in-the-middle-cranial-fossae-of-adult-black-south-african-skull-specimens
#9
Pedzisai Mazengenya, Okobi Ekpo
Variations of the skull base foramina are quite common and often cause surgical confusion during surgical intervention of the region. The unusual foramen was observed in five (0.98%) adult skulls of black South Africans obtained from the Raymond A Dart collection of human specimens housed in the School of Anatomical Sciences at the University of the Witwatersrand. Three of the five specimens were females while the remaining two were males. In four of the five skulls, the unusual foramen was located anterolateral to the foramen rotundum both on the left and right sides...
November 11, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27837264/study-of-the-mandibular-incisive-canal-anatomy-using-cone-beam-computed-tomography
#10
Sergey Lvovich Kabak, Natallia Victorovna Zhuravleva, Yuliya Michailovna Melnichenko, Nina Alexandrovna Savrasova
PURPOSE: The aim of this study was to identify the range of individual variability in dimensions and topography of the mandibular incisive canal (MIC) in vivo. METHODS: One hundred cone beam computed tomography (CBCT) scans of patients from dental outpatient hospitals of Minsk, Belarus were performed on Galileos GAX5 using standard exposure and patient positioning protocol. Reformatted panoramic and sagittal CBCT images were analyzed. RESULTS: The MIC was visualized in 92% of CBCT images...
November 11, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27830323/study-of-frontal-hairline-patterns-for-natural-design-and-restoration
#11
Suzan Sirinturk, Hassan Bagheri, Figen Govsa, Yelda Pinar, Mehmet Asim Ozer
OBJECTIVE: Hair loss is one of the most noticeable esthetic problems of the mankind. Hair transplantation has been a highly effective technique in reducing wide foreheads and recontouring the hairline. Creating a natural hairline is one of the most important elements of a successful hair transplant. This study aims at the requirements which are essential in designing hairline morphometrics and natural frontline. METHODS: Standard photographs of the forehead region were obtained from two hundred young Turkish adults participated in this study...
November 10, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27830322/configuration-of-the-extrinsic-muscles-of-the-tongue-and-their-spatial-interrelationships
#12
Yujiro Sakamoto
PURPOSE: The tongue is a highly muscular organ, and the extrinsic muscles of the tongue overlap one another, which makes their configuration intricate. The aim was to clarify their spatial interrelationships. METHODS: The extrinsic muscles of the tongue were gross anatomically investigated in 42 cadavers. RESULTS: The hyoglossus consisted of two parts arising from the hyoid body and the greater horn, respectively. They ascended to the tongue external to the genioglossus...
November 9, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27830321/an-update-on-the-variations-of-the-orbital-blood-supply-and-hemodynamic
#13
REVIEW
Eugenio Bertelli, Marì Regoli, Sandra Bracco
PURPOSE: Several variations of the arterial blood supply of the orbit have been reported over the years. This review is aimed to provide an update focusing on three important issues: (a) variations of the ophthalmic artery origin; (b) contribution of the external carotid artery to the orbital blood supply; (c) orbital hemodynamic. METHODS: A PubMed and Google search was carried out with the following keywords: ophthalmic artery origin, ophthalmic artery anastomoses and ophthalmic artery anatomy...
November 9, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27826718/duplicate-origin-of-the-right-vertebral-artery-in-which-both-channels-arose-from-the-extreme-proximal-right-subclavian-artery-a-case-report
#14
Akira Uchino, Hiroki Kurita
Rarely, two channels of the right vertebral artery (VA) arise from the right subclavian artery (SA) and fuse at the level of the C5 or C4 transverse foramen, a variation of the artery termed duplicate origin. Usually, one channel arises from the normal position, and the second arises from the extreme proximal segment of the SA. We report a case of duplicate origin of the right VA in which both channels arose from the extreme proximal segment of the SA, which we diagnosed by computed tomography (CT) angiography...
November 8, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27826717/a-never-before-reported-variant-of-the-sacrum
#15
Erfanul Saker, Rod J Oskouian, Marios Loukas, James M Johnston, R Shane Tubbs, Michael Conklin
INTRODUCTION: Several important steps occur in order for the sacrum to develop properly. Embryological derailment can result in several different anatomical variants. CASE REPORT: Herein, we report, to our knowledge, the first case of a duplicated sacrum in the sagittal plane. CONCLUSIONS: Clinicians and radiologists should be aware of such a finding if found during imaging. We would hypothesize that such a variant occurred near the 29th day of development and probably arose from an error in the HOX gene...
November 8, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27822697/annular-ligament-reconstruction-with-the-superficial-head-of-the-brachialis-surgical-technique-and-biomechanical-evaluation
#16
Michael Hackl, Kilian Wegmann, Christian Ries, Sebastian Lappen, Martin Scaal, Lars Peter Müller
PURPOSE: The purpose of this study was to perform biomechanical testing of annular ligament (AL) reconstruction using the superficial head of the brachialis tendon (SHBT) as a distally based tendon graft. We hypothesized that posterior translation of the radial head following AL reconstruction with an SHBT graft does not significantly differ from intact specimens. METHODS: Six fresh-frozen elbow specimens were used. The stability of the radial head against posterior translation forces (30 N) was evaluated in 0°, 45°, 90° and 120° of elbow flexion...
November 7, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27807639/the-fascicular-anatomy-and-peak-force-capabilities-of-the-sternocleidomastoid-muscle
#17
Ewan Kennedy, Michael Albert, Helen Nicholson
PURPOSE: The fascicular morphology of the sternocleidomastoid (SCM) is not well described in modern anatomical texts, and the biomechanical forces it exerts on individual cervical motion segments are not known. The purpose of this study is to investigate the fascicular anatomy and peak force capabilities of the SCM combining traditional dissection and modern imaging. METHODS: This study is comprised of three parts: Dissection, magnetic resonance imaging (MRI) and biomechanical modelling...
November 2, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27800585/a-rare-arterial-branch-distributing-to-the-thymus-ectopic-intrathymic-parathyroid-and-thyroid-glands-which-passed-ventral-to-the-right-common-carotid-artery-a-case-report
#18
Yuko Watanabe, Toshio Terashima, Takamitsu Arakawa
The intrathymic parathyroid has been reported that this variation might be related with the hyperthyroidism. In this study, the arterial pattern supplying the intrathymic parathyroid was examined in detail in the human cadaver (67-year-old, female, right side). The ectopic parathyroid was only detected on the right side, but not on the left side. This ectopic intrathymic parathyroid was supplied by the supernumerary arterial branch that originated from the inferior thyroid artery and passed ventral to the common carotid artery...
October 31, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27796494/the-oblique-occipital-sinus-anatomical-study-using-bone-subtraction-3d-ct-venography
#19
Hwa Seon Shin, Dae Seob Choi, Hye Jin Baek, Ho Cheol Choi, Hye Young Choi, Mi Jung Park, Ji Eun Kim, Jeong Yeol Han, SungEun Park
BACKGROUND AND PURPOSE: An occipital sinus draining into the sigmoid sinus has been termed the oblique occipital sinus (OOS). The frequency, anatomical features, patterns, and relationship with the transverse sinus of the oblique occipital sinus were analyzed in this study. MATERIALS AND METHODS: The study included 1805 patients who underwent brain CT angiography during a 3-year period from 2013 to 2015. CT examinations were performed using a 64-slice MDCT system...
October 31, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27796493/duplicate-origin-and-extremely-long-p1-segment-of-the-posterior-cerebral-artery-diagnosed-by-mr-angiography
#20
Megumi Matsuda, Akira Uchino, Naoko Saito, Hiroaki Neki, Shinya Kohyama, Fumitaka Yamane
We present what we believe is the first report of a patient with an anomalous artery arising from the distal basilar artery and fusing with the mid-portion of an extremely long P1 segment of the left posterior cerebral artery that was diagnosed on magnetic resonance (MR) angiography. Careful review of MR angiographic images is important to detect rare arterial variations, and partial maximum-intensity-projection images aid their identification on MR angiography.
October 31, 2016: Surgical and Radiologic Anatomy: SRA
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