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https://www.readbyqxmd.com/read/28078367/topographical-relationship-between-positions-of-lingual-foramina-and-attachment-of-mylohyoid-muscle-in-mental-region
#1
Naohiro Morikage, Tomohiro Hamada, Akinobu Usami, Satoshi Takada
PURPOSE: Lingual foramina can be observed between the lingual aspects of the mandible in humans. A sublingual artery is thought to exist in sublingual space and a submental artery in submaxillary space, which pierce the mandible through lingual foramina. During surgery for oral implant placement between apices of the mental foramen, it is important to determine the existence and positioning of lingual foramina. The purpose of this study was to investigate the positions of lingual foramina in relation to the mylohyoid muscle and vertical position of the mylohyoid line using cone-beam computed tomography (CBCT) images...
January 11, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28075497/computed-tomographic-evaluation-of-dynamic-alteration-of-the-canine-lumbosacral-intervertebral-neurovascular-foramina
#2
Andrew J Worth, Angela Hartman, Janis P Bridges, Boyd R Jones, Joe I G Mayhew
OBJECTIVE: To develop a computed tomographic (CT) method to measure the volume of the lumbosacral intervertebral neurovascular foramina (IVF) in dogs, and determine the effect of the range of motion of the lumbosacral (LS) junction on this measurement in German shepherd dogs (GSDs) with degenerative lumbosacral stenosis (DLSS) compared to unaffected controls. STUDY DESIGN: In vivo analysis and retrospective case series. SAMPLE POPULATION: Twenty-four working Police GSDs, 12 diagnosed with DLSS and 12 unaffected by DLSS were compared to 10 Greyhounds without DLSS...
January 11, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28075496/effect-of-dorsal-laminectomy-and-dorsal-annulectomy-with-partial-lumbosacral-discectomy-on-the-volume-of-the-lateral-intervertebral-neuroforamina-in-dogs-when-the-lumbosacral-junction-is-extended
#3
Andrew J Worth, Angela Hartman, Janis P Bridges, Boyd R Jones, Joe I G Mayhew
OBJECTIVE: To determine the effect of dorsal annulectomy and partial discectomy on the volume of the lumbosacral lateral intervertebral neurovascular foramina (intervertebral foramina) in canine cadavers during extension of the lumbosacral junction. STUDY DESIGN: Ex vivo experiment. SAMPLE POPULATION: Lumbosacral specimens from 10 large breed dogs euthanatized for reasons unrelated to lumbosacral disease. METHODS: The lumbosacral specimens were clamped in a wooden jig and scanned using computed tomography (CT) with the lumbosacral junction in a neutral position and loaded in extension using a tensioning device...
January 11, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28065638/iterative-metal-artefact-reduction-in-ct-can-dedicated-algorithms-improve-image-quality-after-spinal-instrumentation
#4
J Aissa, C Thomas, L M Sawicki, J Caspers, P Kröpil, G Antoch, J Boos
AIM: To investigate the value of dedicated computed tomography (CT) iterative metal artefact reduction (iMAR) algorithms in patients after spinal instrumentation. MATERIALS AND METHODS: Post-surgical spinal CT images of 24 patients performed between March 2015 and July 2016 were retrospectively included. Images were reconstructed with standard weighted filtered back projection (WFBP) and with two dedicated iMAR algorithms (iMAR-Algo1, adjusted to spinal instrumentations and iMAR-Algo2, adjusted to large metallic hip implants) using a medium smooth kernel (B30f) and a sharp kernel (B70f)...
January 5, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28050353/an-osteologic-study-of-cranial-opening-of-optic-canal-in-gujarat-region
#5
Binita Jigneshkumar Purohit, Praveen R Singh
INTRODUCTION: Optic canal is a bony canal situated in between the roots of lesser wings of sphenoid, lateral to body of sphenoid. It transmits optic nerve and ophthalmic artery, surrounded by meninges. Various authors have studied variations in skull foramina and correlated clinically, as variants in the body structures have been found to be associated with many inherited or acquired diseases. AIM: The present study aimed to examine morphologic and morphometric variations in cranial openings of optic canals...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28043848/surgical-treatment-of-degenerative-spondylolisthesis
#6
REVIEW
P Guigui, E Ferrero
Degenerative spondylolisthesis is a common pathology, often causing lumbar canal stenosis. There is, however, no strong consensus regarding the various medical and surgical treatments available. Surgery is indicated mainly for perceived functional impairment; when the indication is accepted, several questions determine the choice of surgical strategy. Improvement in neurological symptoms is one of the main treatment objectives. For this, it is useful to perform radicular decompression. Some authors recommend indirect decompression by interbody fusion (ALIF, TLIF, XLIF), others by means of an interspinous spacer but the most frequent technique is direct posterior decompression...
December 30, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28033685/clinical-anatomy-and-surgical-significance-of-the-lingual-foramina-and-their-canals
#7
REVIEW
Puhan He, Mindy K Truong, Nimer Adeeb, R Shane Tubbs, Joe Iwanaga
The lingual foramina and canals can be categorized as medial or lateral based on their relation to the midline of the mandible. Investigation of the mandibular lingual region is often done with gross anatomical dissections of cadavers, 2D panoramic radiographic imaging, CT and cone beam CT (CBCT). While gross studies are the most reliable at qualifying canal contents and course, CBCT proved to be superior to other radiographic techniques for visualizing lingual foramina and canals. The submental and sublingual arteries, and their branches are found in the lingual vascular canals...
December 29, 2016: Clinical Anatomy
https://www.readbyqxmd.com/read/27981453/aggressive-osteoblastoma-of-the-cervical-spine-involving-the-canal-and-vertebral-artery-a-case-report
#8
Kei Ando, Shiro Imagama, Kazuyoshi Kobayashi, Yoshihiro Nishida, Naoki Ishiguro
OBJECTIVE: We present such a case of aggressive osteoblastoma of cervical spine. We describe its complicated clinical progression, hoping to shed light on the surgical strategy of this complex tumor. METHODS: We present such a case of aggressive osteoblastoma involving the C6-7 vertebrae. A 25-year-old man was diagnosed as aggressive osteoblastoma of the cervical spine. The lesion encroached upon the radicular foramina and was located adjacent to the canal of the vertebral artery...
December 15, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27977492/analysis-of-anatomical-characteristics-and-morphometric-aspects-of-infraorbital-and-accessory-infraorbital-foramina
#9
Paulo Antônio Martins-Júnior, Cristiano Pereira Rodrigues, Marilda Luz de Andrade De Maria, Larissa Matias Nogueira, Janice Henriques da Silva, Micena Roberta Miranda Alves E Silva
OBJECTIVE: This study aimed to perform a morphological and morphometric study of the characteristics of the infraorbital foramen (IOF) and accessory infraorbital foramen (AIOF) in Brazilian skulls. METHODS: A sample calculation determined a total of 94 human skulls to be evaluated by a trained examiner for number, shape, diameters, and location of IOF in relation to anatomical landmarks. Number, size, shape, diameters, location, orientation, position, and distances in relation to anatomical landmarks were evaluated for the AIOF...
December 13, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27975139/foramina-parietalia-permagna-familial-and-radiological-evaluation-of-two-cases-and-review-of-literature
#10
Larissa Gabor, Huseyin Canaz, Gokhan Canaz, Nursu Kara, Elif Yilmaz Gulec, Ibrahim Alatas
PURPOSE: Foramina parietalia permagna is a variable intramembranous ossification defect of the parietal bones. Foramina parietalia permagna have an autosomal dominant inheritance, and it is showed that mutations in chromosome 5 and 11 are causing this anomaly. Enlarged parietal foramina occurs extremely rare. They are usually asymptomatic, but occasional headache, vomiting, pain over unprotected cerebral cortex, and seizures may be experienced by the patients. In the literature, some associated congenital bony defects, soft tissue pathologies, underlying neuronal deficits, and vascular variations have been described...
December 14, 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27933368/anatomical-variations-of-the-greater-palatine-canal-in-cone-beam-computed-tomography
#11
O Rapado-González, J A Suárez-Quintanilla, María Mercedes Suárez-Cunqueiro
PURPOSE: To analyze anatomical variations of the greater palatine canal (GPC) using cone beam computed tomography (CBCT) images. METHODS: This study included 110 CBCTs. Axial slices were used to determine the shape of GPC and the number of lesser palatine foramina (LPF). Sagittal slices were used to assess the shape of the GPC and the number of lesser palatine canals (LPCs). RESULTS: The most prevalent axial and sagittal GPC shapes were oval (46...
December 8, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27932266/pterygopalatine-fossa-not-a-mystery
#12
Betul Emine Derinkuyu, Oznur Boyunaga, Cigdem Oztunali, Ayse Gul Alimli, Murat Ucar
The pterygopalatine fossa is an important anatomic crossroads that is connected with numerous intra- and extracranial spaces via foramina and fissures. Although this fossa is small, its central location in the skull base and its communications provide clinical, radiological, and anatomical significance. In this pictorial review, we aimed to describe the radiologic anatomy of the pterygopalatine fossa, as well as to give some pathologic examples to better understand this major conduit.
December 6, 2016: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/27928396/unusual-cause-of-horner-syndrome-13-years-after-in-situ-ductal-carcinoma
#13
Di Zhou, Mohannad Ibrahim, Daniel Malach, Robert L Tomsak
Horner syndrome can be caused by a wide range of pathologies along the sympathetic nerve chain, from the hypothalamus to the orbit. Imaging workup of Horner syndrome is necessary given the potential for deadly lesions, especially in a patient with a previous cancer history. The authors report a case of a woman who presented with a preganglionic Horner syndrome secondary to vertebral metastasis from previously diagnosed breast cancer that involved the neural foramina at T1 and T2.
June 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27927501/morphometric-analysis-of-the-thoracic-intervertebral-foramen-osseous-anatomy-in-adolescent-idiopathic-scoliosis-using-low-dose-computed-tomography
#14
Thorbjorn J Loch-Wilkinson, Maree T Izatt, Robert D Labrom, Geoffrey N Askin, Mark J Pearcy, Clayton J Adam
PURPOSE: The dimensions of the thoracic intervertebral foramen in adolescent idiopathic scoliosis (AIS) have not previously been quantified. Better understanding of the dimensions of the foramen may be useful in surgical planning. This study describes a reproducible method for measurement of the thoracic foramen in AIS using computed tomography (CT). METHODS: In 23 preoperative female patients with Lenke 1 type AIS with right-side convexity major curves confined to the thoracic spine the foraminal height (FH), foraminal width (FW), pedicle to superior articular process distance (P-SAP), and cross-sectional foraminal area (FA) were measured using multiplanar reconstructed CT...
May 2016: Spine Deformity
https://www.readbyqxmd.com/read/27922969/orbital-morphometry-a-computed-tomography-analysis
#15
Jaswinder Singh, Roselinda Ab Rahman, Zainul Ahmad Rajion, Johari Abdullah, Irfan Mohamad
INTRODUCTION: The human orbit is a complex anatomic region, which plays predominant role in the evaluation of craniofacial complex. A thorough understanding of the relationship of the distance from orbital rim to the important vital structures of the orbital apex is required for the surgeon to perform safe and effective surgery. OBJECTIVES: To evaluate and compare the depth and distances from various points of the orbital rim to the fissures and foramina of the orbital apex between genders in the local population...
December 5, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27911244/neurosurgical-management-in-lateral-meningocele-syndrome-case-report
#16
Erik C Brown, Kunal Gupta, Christina Sayama
Lateral meningocele syndrome (LMS) is a rare genetic connective tissue disorder. It is associated with morphological changes similar to those of other connective tissue disorders, with the unique distinction of multiple, often bilateral and large, lateral meningoceles herniating through the spinal foramina. In some cases, these lateral meningoceles can cause pain and discomfort due to their presence within retroperitoneal tissues or cause direct compression of the spinal nerve root exiting the foramen; in some cases compression may also involve motor weakness...
December 2, 2016: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27903340/-the-clinical-application-of-lumbar-plexus-the-first-posterior-sacral-foramina-block-for-hip-arthroplasty-in-elderly-patients
#17
J Li, X J Ke, Y Liu, K Chen, M B Chen, W Mei
Objective: To evaluate the clinical efficacy of lumbar plexus-the first posterior sacral foramina block as an anesthesia technique for hip arthroplasty in elderly patients. Methods: Forty-four patients, aged 60-91 years, weighing 37-100 kg, American Society of Anesthesiologists (ASA) Ⅰ-Ⅲ, underwent elective hip arthroplasty in Tongji Hospital from February 2015 to January 2016.All patients received lumbar plexus and the first posterior sacral foramina block.The first posterior sacral foramina puncture point of 23 cases were located by traditional positioning method, the others were orientated via ultrasonic method...
November 22, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27896540/variations-in-the-anatomy-of-the-vertebral-artery-cervical-loop-segment-a-potential-predisposing-factor-for-traumatic-basal-subarachnoid-hemorrhage
#18
Jonathan E Medcalf, C Paul Johnson, Azzam Taktak, Silke Grabherr
Fatal traumatic basal subarachnoid hemorrhage (TBSAH) is a characteristic forensic pathological entity, the investigation of which requires special techniques. In Liverpool, post-mortem room angiography is undertaken, followed by complete removal of the vertebral arteries and histological examination. It has been observed that the arterial anatomy can be highly variable, particularly the length and course of the loop segments located between the C2 vertebra and the dura. In a number of cases of TBSAH the loop segments of torn vessels have appeared relatively short...
December 2016: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/27892447/a-study-on-variations-of-nutrient-foramen-of-humerus-with-its-clinical-implications
#19
D I Mansur, P Manandhar, M K Haque, D K Mehta, S Duwal, B Timalsina
Background Nutrient foramen is an opening into shaft of humerus which gives passage to the blood vessels of medullary cavity. The knowledge of nutrient foramen is important in surgical procedures like bone grafting and more recently in microsurgical vascularized bone transplantation. Objective To determine the number, location and direction of nutrient foramen and whether the nutrient foramens obey the rule of ossification, that is directed away from the growing end of the bone or not. Method The present study consisted of 253 (108 right and 145 left) dried humeri excluding any fracture or pathological abnormalities during the period of 15th December 2014 - 14th February 2015...
January 2016: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/27891032/clinical-anatomy-and-significance-of-the-thoracic-intervertebral-foramen-a-cadaveric-study-and-review-of-the-literature
#20
Grigorios Gkasdaris, Grigorios Tripsianis, Konstantinos Kotopoulos, Stylianos Kapetanakis
INTRODUCTION: The literature is lacking information on the anatomy and the osseous dimensions of the thoracic intervertebral foramen (IVF). We describe the anatomy of the broader area, and we proceed with morphometric data of the vertebrae and the foramina. Depiction of these features is provided with imaging and illustrations. The purpose of this paper is to survey and present the anatomy of the foramen as a whole and provide baseline statistical data. MATERIALS AND METHODS: We review relevant literature, and we present data obtained from skeletal samples of known population and sex...
October 2016: Journal of Craniovertebral Junction and Spine
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