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https://www.readbyqxmd.com/read/27935264/improved-delivery-of-sinus-irrigations-after-middle-turbinate-resection-during-endoscopic-sinus-surgery
#1
Sarah M Kidwai, Arjun K Parasher, Mohemmed N Khan, Jean Anderson Eloy, Anthony Del Signore, Alfred Marc Iloreta, Satish Govindaraj
BACKGROUND: Improvement in topical delivery to nasal mucosa is a fundamental goal of endoscopic sinus surgery (ESS). This study compares the penetration of irrigation before and after middle turbinate resection (MTR) to assess the efficacy of topical delivery. METHODS: ESS was performed on 4 cadaver heads, followed by MTR. Each head was irrigated with fluorescein-dyed water using a squeeze bottle both before and after MTR. Videos were recorded by rigid nasal endoscopy...
December 9, 2016: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/27930604/an-automated-expanded-polytetrafluoroethylene-suturing-and-coaxial-fastener-system-for-mitral-chordae-replacement-strength-feasibility-and-healing
#2
Candice Y Lee, Joshua K Wong, Jude S Sauer, Heather R Gorea, Angelo J Martellaro, Andrew R Sifain, Peter A Knight
OBJECTIVE: Mitral valve (MV) chordae replacements can be technically challenging. Technology that remotely delivers and accurately secures artificial chordae may reduce the learning curve and improve the reliability of MV repairs. METHODS: The technology involved two devices: a remote suturing device for delivery of expanded polytetrafluoroethylene (ePTFE) suture to the papillary muscle and a Coaxial titanium suture fastener (TF) device with integrated saline infusion for real-time determination of chordae length during fixation...
December 7, 2016: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/27930465/parotid-branches-of-the-auriculotemporal-nerve-an-anatomical-study-with-implications-for-frey-syndrome
#3
Joe Iwanaga, Christian Fisahn, Koichi Watanabe, Samuel L Bobek, Kinuko Ogata, Ryuichiro Tanoue, Jingo Kusukawa, Rod J Oskouian, R Shane Tubbs
The auriculotemporal nerve is one of the many branches of the mandibular division of the trigeminal nerve. Of these, its superficial temporal branch has been most described. Although the parotid branches, secretomotor fibers to the parotid gland, are well known as the cause of Frey syndrome, there have been almost no descriptions of their anatomy. In this study, the authors dissected the parotid branches of the auriculotemporal nerve to elucidate their anatomy. A total of 10 sides from 7 adult and embalmed cadaver heads were used in this study...
December 7, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27930425/the-gracillimus-orbitis-muscle
#4
David R Jordan, Bazil Stoica
The gracillimus orbitis muscle is an anomalous, accessory, or supernumerary extraocular muscle that, although is rarely seen clinically in the human orbit, has been identified in 5% to 14% of dissected cadaver orbits. It arises from the medial surface of the levator near its origin and runs forward between the levator and superior oblique muscles resembling one of the other extraocular muscles. More anteriorly, it becomes thinner, less well defined, and mostly fibrous. Its major insertion is into the fascia surrounding the trochlea, while other fibers may travel to the supratrochlear artery, intermuscular septum, the levator or medial rectus muscle, and the fascia surrounding the superior ophthalmic vein...
December 7, 2016: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27930090/sonoelastography-of-the-common-flexor-tendon-of-the-elbow-with-histologic-agreement-a-cadaveric-study
#5
Andrea S Klauser, Mathias J Pamminger, Ethan J Halpern, Mohamed M H Abd Ellah, Bernhard Moriggl, Mihra S Taljanovic, Christian Deml, Judith Sztankay, Guenter Klima, Leonhard Gruber, Werner R Jaschke
Purpose To determine the correlation of the results of conventional B-mode ultrasonography (US) and compression sonoelastography with histologic results in common flexor tendons of the elbow in human cadavers. Materials and Methods Twenty-five common flexor tendons were evaluated in 16 fresh, unembalmed cadavers of 11 women with a median age of 85 years (range, 71-101 years) and five men with a median age of 78 years (range, 70-88 years). Informed consent was provided according to the last will of the donors...
December 7, 2016: Radiology
https://www.readbyqxmd.com/read/27927550/strength-of-thoracic-spine-under-simulated-direct-vertebral-rotation-a%C3%A2-biomechanical-study
#6
Sean L Borkowski, Sophia N Sangiorgio, Richard E Bowen, Anthony A Scaduto, Bo He, Kathryn L Bauer, Edward Ebramzadeh
BACKGROUND: Direct vertebral rotation (DVR) has gained increasing popularity for deformity correction surgery. Despite large moments applied intraoperatively during deformity correction and failure reports including screw plow, aortic abutment, and pedicle fracture, to our knowledge, the strength of thoracic spines has been unknown. Moreover, the rotational response of thoracic spines under such large torques has been unknown. PURPOSE: Simulate DVR surgical conditions to measure torsion to failure on thoracic spines and assess surgical forces...
March 2016: Spine Deformity
https://www.readbyqxmd.com/read/27926554/intraoperative-archive-of-right-colonic-vascular-variability-aids-central-vascular-ligation-and-redefines-gastrocolic-trunk-of-henle-variants
#7
Jamal F Alsabilah, Syed A Razvi, Mahdi H Albandar, Nam K Kim
BACKGROUND: Vascular supply to the right colon has become an issue because of high variability and subsequent impact on minimally invasive surgery. Past cadaveric or radiologic anatomic assessments are noncomprehensive. OBJECTIVE: Intraoperative charting of right colonic arteriovenous anatomy was undertaken to determine the incidence and scope of vascular variations. DESIGN: Vascular anatomy variations were documented in snapshot images, captured during laparoscopic video recordings or through open surgical digital photography...
January 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/27924407/muscidae-diptera-of-forensic-importance-an-identification-key-to-third-instar-larvae-of-the-western-palaearctic-region-and-a-catalogue-of-the-muscid-carrion-community
#8
Andrzej Grzywacz, Martin J R Hall, Thomas Pape, Krzysztof Szpila
The Muscidae is one of the main dipteran families recognized as important for medico-legal purposes. Although an association of adult flies with decomposing human and animal bodies is documented for about 200 taxa worldwide, cadavers and carrion represents a breeding habitat for considerably fewer species. Species that do colonize dead human bodies can do so under diverse environmental conditions and, under certain circumstances, Muscidae may be the only colonizers of a body. Because of difficulties in identification, many studies have identified immature and/or adult muscids only to the genus or family level...
December 7, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27923213/proximity-of-the-lateral-calcaneal-artery-with-a-modified-extensile-lateral-approach-compared-to-standard-extensile-approach
#9
John Y Kwon, Tyler Gonzalez, Matthew D Riedel, Ara Nazarian, Mohammad Ghorbanhoseini
BACKGROUND: The extensile lateral approach (EL) has been associated with increased wound complications such as apical necrosis which may be due partially from violation of the lateral calcaneal artery (LCA). Traditionally, the vertical limb has been placed half-way between the fibula and Achilles tendon, which may be suboptimal given the proximity to the LCA. We hypothesized that placing the vertical limb further posterior (ie, modified EL [MEL]) would increase the distance from the LCA...
October 23, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27922990/robotically-assisted-thoracic-surgery-proposed-guidelines-for-privileging-and-credentialing
#10
Faiz Y Bhora, Adnan M Al-Ayoubi, Sadiq S Rehmani, Craig M Forleiter, Wissam N Raad, Scott G Belsley
OBJECTIVE: Increased use of robotically assisted thoracic surgery (RATS) necessitates effective credentialing guidelines to ensure safe outcomes. We provide a stepwise algorithm for granting privileges and credentials in RATS. This algorithm reflects graduated responsibility and complexity of the surgical procedures performed. Furthermore, it takes into account volume, outcomes, surgeon's competency, and appropriateness of robot usage. METHODS: We performed a literature review for available strategies to grant privileges and credentials for implementing robotic surgery...
December 5, 2016: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/27922954/midface-advancement-in-a-simple-approach
#11
Herman Vercruysse, Ramon Sieira-Gil, Alfons Navarro, Eloy Garcia-Diez
BACKGROUND: Midface advancement is a keystone intervention in the treatment plan of syndromic hypoplasia of the midface. Although earlier authors had been using a combination of smaller incisions to acquire enough access to perform the different osteotomies, Tessier popularized the bicoronal incision. This approach can be time-consuming however and leaves an ear-to-ear scar. The authors describe an endoscopically assisted piezo-electric Le Fort III osteotomy performed through minimal invasive access...
December 5, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27922577/is-it-in-or-out-the-optimal-fluoroscopic-views-for-intraoperative-determination-of-proper-lateral-mass-screw-placement
#12
Sang Bum Kim, John M Rhee, Byung Hak Oh, You Gun Won, Yousun Jung, Kun Young Park, William C Hutton, Chulmin Kim
STUDY DESIGN: Cadaveric OBJECTIVE.: Determine optimal fluoroscopic views for detecting cervical lateral mass screw (LMS) violations SUMMARY OF BACKGROUND DATA.: Single plane intraoperative xrays are commonly used but frequently inadequate due to its complex trajectory. Fluoroscopy can be taken in multiple planes, but the ideal fluoroscopic view to assess malposition is not known: depending on the view, any given screw may look "in" or "out". METHODS: C3-6 LMS were inserted in 3 cadavers...
December 2, 2016: Spine
https://www.readbyqxmd.com/read/27921449/reduction-mammaplasty-with-the-modified-round-block-technique-in-chinese-patients-and-its-anatomy-study
#13
Wei Ding, Yinjia Ding, Hua Jiang
BACKGROUND: Although reduction mammaplasty is one of the most common procedures in plastic surgery, it is associated with some serious complications, especially in cases of severe hypertrophy or advanced ptosis, including necrosis of the nipple and areola, absence of normal sensation of the nipple-areolar complex, and loss of lactational function for future nursing. A thorough understanding of the breast anatomy is vital for successful reduction mammaplasty. This article describes the blood supply and innervation of the breasts, and introduces a modified round block technique for reduction mammaplasty based on this anatomy...
December 6, 2016: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/27919561/occipital-bone-thickness-implications-on-occipital-cervical-fusion-a-cadaveric-study
#14
Kourosh Zarghooni, Chrisoph K Boese, Jan Siewe, Marc Röllinghoff, Peer Eysel, Max J Scheyerer
OBJECTIVE: The aim of this study was to create a map of the occipital bone using a cadaveric morphometric analysis. MATERIAL: Twelve heads, from seven male and five female cadavers, were studied. The thickness of the occipital bone was measured with a digital vernier caliper within a coordinate system. RESULTS: The maximum thickness of the occipital bone could be measured at the external occipital protuberance (mean 15.4 mm; range 9-29.3 mm)...
December 2, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27915135/primary-stability-and-viscoelastic-displacement-of-mini-implant-system-under-loading
#15
Jim Lee, Yong-Hoon Jeong, Joseph Pittman, Toru Deguchi, William M Johnston, Henry W Fields, Do-Gyoon Kim
BACKGROUND: The objectives of the current study were to examine the effects of mini-implant diameters on 1) primary stability before bone properties are changed by active peri-implant bone remodeling and 2) the time-dependent displacement of mini-implant systems in bone under a functional radial loading and their associations with bone mineral density. METHODS: Twenty one, 8mm length mini-implants (7 each for 1.4mm, 1.6mm, and 2mm diameters) were placed in mandibular sections of human cadavers (4 males and 3 females, average 69...
November 24, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27914383/the-development-of-a-whole-head-human-finite-element-model-for-simulation-of-the-transmission-of-bone-conducted-sound
#16
You Chang, Namkeun Kim, Stefan Stenfelt
A whole head finite element model for simulation of bone conducted (BC) sound transmission was developed. The geometry and structures were identified from cryosectional images of a female human head and eight different components were included in the model: cerebrospinal fluid, brain, three layers of bone, soft tissue, eye, and cartilage. The skull bone was modeled as a sandwich structure with an inner and outer layer of cortical bone and soft spongy bone (diploë) in between. The behavior of the finite element model was validated against experimental data of mechanical point impedance, vibration of the cochlear promontories, and transcranial BC sound transmission...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27913902/a-new-multiscale-micromechanical-model-of-vertebral-trabecular-bones
#17
Rami Haj-Ali, Eyass Massarwa, Jacob Aboudi, Fabio Galbusera, Uwe Wolfram, Hans-Joachim Wilke
A new three-dimensional (3D) multiscale micromechanical model has been suggested as adept at predicting the overall linear anisotropic mechanical properties of a vertebral trabecular bone (VTB) highly porous microstructure. A nested 3D modeling analysis framework spanning the multiscale nature of the VTB is presented herein. This hierarchical analysis framework employs the following micromechanical methods: the 3D parametric high-fidelity generalized method of cells (HFGMC) as well as the 3D sublaminate model...
December 2, 2016: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/27913755/applications-of-three-dimensional-printing-in-surgery
#18
REVIEW
Chi Li, Tsz Fung Cheung, Vei Chen Fan, Kin Man Sin, Chrisity Wai Yan Wong, Gilberto Ka Kit Leung
Three-dimensional (3D) printing is a rapidly advancing technology in the field of surgery. This article reviews its contemporary applications in 3 aspects of surgery, namely, surgical planning, implants and prostheses, and education and training. Three-dimensional printing technology can contribute to surgical planning by depicting precise personalized anatomy and thus a potential improvement in surgical outcome. For implants and prosthesis, the technology might overcome the limitations of conventional methods such as visual discrepancy from the recipient's body and unmatching anatomy...
December 2, 2016: Surgical Innovation
https://www.readbyqxmd.com/read/27909799/thyroid-gland-visualization-with-3d-4d-ultrasound-integrated-hands-on-imaging-in-anatomical-dissection-laboratory
#19
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/27909613/the-novel-laparoscopic-training-3d-model-in-urology-with-surgical-anatomic-remarks-fresh-frozen-cadaveric-tissue
#20
REVIEW
Emre Huri, Mehmet Ezer, Eddie Chan
Laparoscopic surgery is routinely used to treat many urological conditions and it is the gold standard treatment option for many surgeries such as radical nephrectomy. Due to the difficulty of learning, laparoscopic training should start outside the operating room. Although it is a very different model of laparoscopic training; the aim of this review is to show the value of human cadaveric model for laparoscopic training and present our experience in this area. Fresh frozen cadaveric model in laparoscopic training, dry lab, cadaveric model, animal models and computer based simulators are the most commonly used models for laparoscopic training...
December 2016: Turkish Journal of Urology
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