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cadaver dissection

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https://www.readbyqxmd.com/read/28740631/increased-risk-of-coronary-perforation-during-percutaneous-intervention-of-myocardial-bridge-what-histopathology-says
#1
Somayeh Pourhoseini, Mohammad Bakhtiari, Abdolreza Babaee, Mohammad Ali Ostovan, Seyed Hassan Eftekhar-Vaghefi, Nikan Ostovan, Pooyan Dehghani
Introduction: Myocardial bridge (MB) is a segment of a major epicardial coronary artery that goes intramurally under a bridge of overlying myocardium. Complications have been reported during or after stent implantation particularly coronary perforation. The aim of this study was to determine histological differences between proximal left anterior descending artery (LAD) and the tunneled segment that may have a possible role in increased risk of coronary artery perforation during percutaneous coronary intervention...
2017: Journal of Cardiovascular and Thoracic Research
https://www.readbyqxmd.com/read/28738189/surgical-landmarks-to-locating-the-main-trunk-of-the-facial-nerve-in-parotid-surgery-a-systematic-review
#2
Yisi D Ji, R Bruce Donoff, Zachary S Peacock, Eric R Carlson
PURPOSE: The purpose of this study was to describe distances from commonly used anatomic landmarks to the main trunk of the facial nerve during parotid surgery. MATERIALS AND METHODS: A systematic search of the published literature was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. All studies from January 1, 1990 to January 1, 2017 that measured distances to the main trunk of the facial nerve from common anatomic landmarks were eligible...
June 30, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28737561/a-cadaver-study-to-assess-the-feasibility-of-a-cross-nerve-transfer-of-the-infraorbital-nerve-for-patients-with-peripheral-infraorbital-nerve-injury
#3
Tomoyuki Yano, Keiichi Akita, Kumiko Yamaguchi, Masayuki Sawaizumi
BACKGROUND: Patients with facial fracture or head and neck surgery sometimes suffer from infraorbital nerve injury. This injury results in severe hemilateral numbness in the midfacial area. The infraorbital nerve ends with two major branches; the infra nasal branch (INB) and superior labial branch (SLB). In this study, we assessed the feasibility of cross-nerve transfer of the INB and SLB based on a cadaver study. METHODS: The INB/SLB from a total 20 sides of 10 cadavers (2 men and 8 women; average age, 79...
July 22, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28735796/prevalence-of-second-mesiobuccal-canals-in-maxillary-first-molars-detected-using-cone-beam-computed-tomography-direct-occlusal-access-and-coronal-plane-grinding
#4
Brent M Hiebert, Kenneth Abramovitch, Dwight Rice, Mahmoud Torabinejad
INTRODUCTION: The purpose of this study was to determine the prevalence of the second mesiobuccal canal (MB2) in 100 maxillary first molars using 3 independent methods and a combination method. METHODS: One hundred extracted human maxillary first molars were collected. The teeth were mounted in the maxillary first molar extraction sockets of a human cadaver head. A cone-beam computed tomographic (CBCT) scan was taken of each tooth. Two radiology faculty independently evaluated the CBCT volume for the presence of an MB2 canal...
July 20, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28731927/injectate-spread-following-anterior-sub-costal-and-posterior-approaches-to-the-quadratus-lumborum-block-a-comparative-cadaveric-study
#5
Hesham Elsharkawy, Kariem El-Boghdadly, Sree Kolli, Wael A S Esa, Sean DeGrande, Loran M Soliman, Richard L Drake
BACKGROUND: The dermatomal level of analgesia achieved with quadratus lumborum blocks varies according to the location of injection. The most commonly used approaches are either at the postero-lateral aspect or anterior to the quadratus lumborum muscle. The aim of the study was to determine whether the site of injection of contrast dye around the quadratus lumborum muscle of cadavers affects the extent and mechanism of dye spread. METHODS: Six fresh human cadavers received either a posterior quadratus lumborum block or an anterior sub-costal quadratus lumborum block on each side...
July 20, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28727647/surgical-anatomy-of-the-uterosacral-ligament-colpopexy
#6
Lauren N Siff, Karl Jallad, Lisa C Hickman, Mark D Walters
OBJECTIVE: The aim of this study was to describe the relationship of the uterosacral ligament (USL) to the ureter and rectum along a surgeon's target location for suture placement under conditions simulating live surgery. METHODS: Dissections were performed in 11 unembalmed female cadavers. Steps were taken to identify the USL simulating USL colpopexy. Pins were placed in the midportion of the USL at the level of the IS, and at 1-cm, 2-cm, and 3-cm increments traveling proximally toward the sacrum (Fig...
July 20, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28725508/the-anatomy-of-the-dorsal-capsulo-scapholunate-septum-a-cadaveric-study
#7
Marina Tommasini Carrara de Sambuy, Tanya Michelle Burgess, Adeline Cambon-Binder, Christophe L Mathoulin
Background  Tears of the dorsal radiocarpal capsule at the level of the scapholunate interosseous ligament (SLIL) have recently been described in association with predynamic scapholunate instability. Purpose  The aim of this anatomical study of the dorsal capsulo-scapholunate septum (DCSS) was to examine the connection of the dorsal capsule on the SLIL and dorsal intercarpal ligament (DICL). Methods  Fourteen fresh frozen wrists from seven adult cadavers were dissected through a dorsal approach. Any dorsal attachment of the DICL on the dorsal surface of the SLIL, that is, the DCSS, was identified and measured (height and width)...
August 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28723767/return-of-the-cadaver-key-role-of-anatomic-dissection-for-plastic-surgery-resident-training
#8
Swenn Maxence Krähenbühl, Paul Čvančara, Thomas Stieglitz, Raphaël Bonvin, Murielle Michetti, Marjorie Flahaut, Sébastien Durand, Lina Deghayli, Lee Ann Applegate, Wassim Raffoul
Successful Plastic Surgery Residency training is subjected to evolving society pressure of lower hourly work weeks imposed by external committees, labor laws, and increased public awareness of patient care quality. Although innovative measures for simulation training of surgery are appearing, there is also the realization that basic anatomy training should be re-enforced and cadaver dissection is of utmost importance for surgical techniques.In the development of new technology for implantable neurostimulatory electrodes for the management of phantom limb pain in amputee patients, a design of a cadaveric model has been developed with detailed steps for innovative transfascicular insertion of electrodes...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28720008/a-cadaveric-study-of-the-thread-trigger-finger-release-the-first-annular-pulley-transection-through-thread-transecting-technique
#9
Danqing Guo, Danzhu Guo, Joseph Guo, Logan C McCool, Brionn Tonkin
BACKGROUND: After the thread transecting technique was successfully applied for the thread carpal tunnel release, we researched using the same technique in the thread trigger finger release (TTFR). This study was designed to test the operational feasibility of the TTFR on cadavers and verify the limits of division on the first annular (A1) pulley to ensure a complete trigger finger release with minimal iatrogenic injuries. METHODS: The procedure of TTFR was performed on 14 fingers and 4 thumbs of 4 unembalmed cadaveric hands...
March 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28719974/the-accuracy-of-common-hand-injections-with-and-without-ultrasound-an-anatomical-study
#10
Philip To, Kaylan N McClary, Micah K Sinclair, Brittany A Stout, Mohab Foad, Shannon Hiratzka, Peter J Stern
BACKGROUND: The aim of the study is to determine the accuracy of hand injections with and without the aid of ultrasound (U/S) into the carpal tunnel, thumb carpometacarpal (CMC) joint, first dorsal compartment (DC) and the radiocarpal (RC) joint. METHODS: Four participants of various level of experience injected the carpal tunnel, thumb CMC, first DC, and RC joint into 40 fresh frozen cadaver specimens with blue dye and radiographic contrast. Participants 1 and 2 were injected without U/S guidance, and participants 3 and 4 were injected with U/S guidance...
February 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28719731/anatomical-vs-functional-motor-points-of-selected-upper-body-muscles
#11
Alexander Franz, Joschua Klaas, Moritz Schumann, Thomas Frankewitsch, Timm J Filler, Michael Behringer
Introduction We aimed to identify nerve entry points (NEP) of superficial skeletal muscles obtained by dissection of 20 human cadavers and to compare those to motor points (MP) previously obtained by electrical stimulation. Methods The biceps brachii- (BB), trapezius (TZ), latissimus dorsi (LD), pectoralis major (Pmaj) and pectoralis minor muscles (Pmin) were dissected from human cadavers. Mean values ±SD of the NEPs of each muscle were calculated. F-tests with Bonferroni corrections were used to compare NEPs and MPs...
July 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28719722/learning-anatomy-through-thiel-vs-formalin-embalmed-cadavers-student-perceptions-of-embalming-methods-and-effect-on-functional-anatomy-knowledge
#12
Larissa Kennel, David M A Martin, Hannah Shaw, Tracey Wilkinson
Thiel-embalmed cadavers, which have been adopted for use in anatomy teaching in relatively few universities, show greater flexibility and color retention compared to formalin-embalmed cadavers, properties which might be considered advantageous for anatomy teaching. This study aimed to investigate student attitudes toward the dissection experience with Thiel- compared to formalin/ethanol-embalmed cadavers. It also aimed to determine if one embalming method is more advantageous in terms of learning functional anatomy through the comparison of student anterior forearm functional anatomy knowledge...
July 18, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28718946/evidence-for-plical-support-of-the-patella
#13
Robert M Geraghty, Michelle Spear
There is a consensus that there is no overt anterior joint capsule in the knee. However, other anterior structures act in lieu of a joint capsule: the quadriceps tendon and patellar retinacular fibres. In the absence of a capsule, the synovium forms the suprapatellar pouch. Other synovial structures, the plicae, are more controversial. They are often described as embryonic remnants with no function, despite surrounding the patella. We aimed to identify plical anatomy and histology on cadaveric dissection and to examine their embryology using the human virtual embryo website...
July 18, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28713704/the-anterior-interosseus-artery-perforator-flap-anatomical-dissections-and-clinical-study
#14
Nikhil S Panse, Sheetal B Joshi, Parag B Sahasrabudhe, B Bahetee, Pradnya Gurude, Ajay Chandanwale
BACKGROUND: Reconstruction of upper extremity deformities continues to be a challenge to the reconstructive surgeon. Various loco regional, distant and free flaps are available for reconstruction. However, each has its own set of advantages and disadvantages. Of the commonly performed local flaps, radial artery forearm flap, and the posterior interosseus artery flap stand out prominently. Recently, perforator propeller flaps have been used for resurfacing the upper extremity. The anterior interosseus artery perforator flap is an uncommonly used and described flap...
May 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/28713619/functional-and-clinical-importance-of-a-large-sized-ostium-secundum-defect-in-a-middle-aged-female-cadaver-a-case-report
#15
Satheesha B Nayak
Atrial septal defect (ASD) is one of the common congenital anomalies of the heart in humans. Its complications depend on the size of the defect and can manifest at any age. The common symptoms of ASD include dyspnea and fatigue. Most of the ASDs are associated with morbidity and mortality, Earlier the treatment, it is better to the patient. I saw a large ostium secundum defect in the heart of an adult female cadaver during dissection classes for undergraduate medical students. The interatrial septum had large defect at the region where fossa ovalis should have been located...
June 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/28709584/first-sacral-nerve-and-anterior-longitudinal-ligament-anatomy-clinical-applications-during-sacrocolpopexy
#16
Maria E Florian-Rodriguez, Jennifer Hamner, Marlene M Corton
BACKGROUND: The recommended location of graft attachment during sacrocolpopexy is at or below the sacral promontory on the anterior surface of the first sacral vertebra. Graft fixation below the sacral promontory may potentially involve the first sacral nerve. OBJECTIVES: The objectives of this study were to examine the anatomy of the right first sacral nerve relative to the midpoint of the sacral promontory and to evaluate the thickness and ultrastructural composition of the anterior longitudinal ligament at the sacral promontory level...
July 11, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28702393/the-arcade-of-struthers-an-anatomical-study-and-clinical-implications
#17
Edie Benedito Caetano, João José Sabongi Neto, Luiz Angelo Vieira, Maurício Ferreira Caetano
OBJECTIVE: To determine the frequency and features of the arcade of Struthers, and to assess its clinical implication in ulnar nerve compression. METHOD: Forty arms from 26 cadaver specimens were dissected in the Anatomy Laboratory of this institution. The extension of the arcade, distance from the medial epicondyle, and relation with ulnar nerve were recorded. RESULTS: The arcade of Struthers was identified in 40 dissected arms (100%). In 29 (72...
May 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28696151/paravertebral-brachial-plexus-blockade-in-cats-a-cadaver-study
#18
Marina C Evangelista, Beatriz P Monteiro, Graeme M Doodnaught, Pascale Benoist, Paulo V Steagall
Objectives The aims of this study were to describe the paravertebral brachial plexus (PBP) blockade in cats, and compare the spread of bupivacaine-methylene blue solution (BMS) using two volumes of injection into the PBP. Methods Six cadavers (4.4 ± 1.8 kg) randomly received 0.15 ml/kg (LOW) or 0.2 ml/kg (HIGH) per injection of BMS into the PBP. The first injection was made ventral to the transverse process of the sixth cervical vertebra (nerves C6 and C7) at the emergence of nerve roots. A second injection was performed at the edge of the cranial border of the scapula and directed ventrally towards the first rib (C8 and T1)...
July 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28694596/cadaveric-study-for-ideal-dorsal-pedicle-screw-entry-point
#19
Sandeep Sonone, Aditya Anand Dahapute, Mahendra Pal, Siddharth Virani, Rohan Gala
OBJECTIVE: To determine the entry for the dorsal pedicular screw in relation to the notch present at the junction of base of the lateral margin of superior articular process with superior border of transverse process in dorsal spine. The advantage of this technique is a constant and easily identifiable entry point which does not involve partial resection of the inferior facet, thus maintaining stability and maintaining the well defined transverse and sagittal screw angles and decreasing the incidence of medial and inferior pedicle violation...
April 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/28693182/location-of-the-meso-pancreatoduodenum-as-a-regional-lymphatic-basin-for-pancreatic-head-carcinoma
#20
Hirofumi Terakawa, Hirohisa Kitagawa, Isamu Makino, Hironori Hayashi, Katsunobu Oyama, Hisatoshi Nakagawara, Tomoharu Miyashita, Hidehiro Tajima, Hiroyuki Takamura, Sachio Fushida, Noriyuki Ozaki, Tetsuo Ohta
The meso-pancreatoduodenum is the primary site of tumor infiltration in patients with pancreatic head cancer, with numerous patients exhibiting lymph node metastases. Effective dissection of the regional lymphatic basin requires knowledge of the patterns of the arterial branches. The present study examined the patterns of the arteries feeding the pancreatic head and the distribution of the meso-pancreatoduodenum. The present study included 123 patients with pancreatic cancer who underwent contrast-enhanced preoperative 64-multidetector-computed tomography to determine the routes of the inferior pancreaticoduodenal and first jejunal arteries...
July 2017: Oncology Letters
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