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https://www.readbyqxmd.com/read/28204844/safe-placement-of-lateral-mass-screw-in-the-subaxial-cervical-spine-a-case-series
#1
Di Zhang, Xianda Gao, Jiang Jiang, Fanlong Kong, Yong Shen, Wenyuan Ding, Xiufang Hao, Huixian Cui
PURPOSE: Laminectomy with lateral mass screw fixation has been proven to be an effective method to treat the multilevel cervical degenerative myelopathy and severe cervical spondylosis. However, accurate and safe insertion of the lateral mass screw is technically demanding due to the individual variations of the anatomy of the lateral mass of the subaxial cervical spine. Misplaced lateral mass screw is not uncommon, and operation-related complications still beset the surgeons, which may impair the clinical outcomes...
February 15, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28192864/a-reassessment-of-cervical-surface-anatomy-via-ct-scan-in-an-adult-chinese-population
#2
Xin-Hua Shen, Hua-Dan Xue, Yu Chen, Man Wang, S Ali Mirjalili, Zhu-Hua Zhang, Chao Ma
Surface landmarks in the neck are important for orientations of cervical glands, arteries, veins, nerves and vertebrae. Recent research suggests some orientations are not correct. What are the cervical landmark orientations in the Chinese population? In this study, two essential cervical anatomy planes, the thyroid cartilage and C7 planes, were assessed in living adult Chinese subjects using computed tomography (CT), and the hyoid, carotid bifurcation, cricoid cartilage, thyroid arteries and vertebral artery were simultaneously positioned...
February 13, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28191601/the-maxillary-artery-and-its-variants-an-anatomical-study-with-neurosurgical-applications
#3
Jorge E Alvernia, Joaquin Hidalgo, Marc P Sindou, Chad Washington, Gustavo Luzardo, Eddie Perkins, Remi Nader, Patrick Mertens
BACKGROUND: The maxillary artery (MA) has gained attention in neurosurgery particularly in cerebral revascularization techniques, intracranial endonasal approaches and endovascular procedures. OBJECTIVES: To describe and illustrate the anatomy of the MA and its neurosurgical importance in a detailed manner. METHODS: Six cadaveric heads (12 MAs) were injected with latex. The arteries and surrounding structures were dissected and studied using microsurgical techniques...
February 13, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28190716/five-year-outcomes-of-the-pythagoras-u-s-clinical-trial-of-the-aorfix-endograft-for-endovascular-aneurysm-repair-in-patients-with-highly-angulated-aortic-necks
#4
Mahmoud B Malas, Caitlin W Hicks, William D Jordan, Kim J Hodgson, Joseph L Mills, Michel S Makaroun, Michael Belkin, Mark F Fillinger
OBJECTIVE: Early and midterm outcomes of the Prospective Aneurysm Trial: High Angle Aorfix Bifurcated Stent Graft (PYTHAGORAS) trial in patients with highly angulated aortic necks (≥60 degrees) have already been published and shown comparable outcomes to other endografts in normal anatomy. Herein, we present the long-term outcomes of the PYTHAGORAS trial of Aorfix (Lombard Medical, Irvine, Calif) for patients with highly angulated aortic neck anatomy. METHODS: The Aorfix endograft is a highly conformable nitinol/polyester device designed for transrenal fixation...
February 9, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28185275/surface-markers-for-guiding-cylindrical-diffuser-fiber-insertion-in-interstitial-photodynamic-therapy-of-head-and-neck-cancer
#5
Emily Oakley, David A Bellnier, Alan Hutson, Brian Wrazen, Hassan Arshad, Harry Quon, Gal Shafirstein
BACKGROUND AND OBJECTIVES: Image-based treatment planning can be used to compute the delivered light dose during interstitial photodynamic therapy (I-PDT) of locally advanced head and neck squamous cell carcinoma (LA-HNSCC). The objectives of this work were to evaluate the use of surface fiducial markers and flexible adhesive grids in guiding interstitial placement of laser fibers, and to quantify the impact of discrepancies in fiber location on the expected light dose volume histograms (DVHs)...
February 10, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28170119/lateral-arm-free-tissue-transfer-for-parotid-reconstruction-a-pictorial-essay
#6
Stephen Y Kang, Matthew O Old, Theodoros N Teknos
BACKGROUND: The goals of parotid reconstruction are to provide accurate volume reconstruction of the defect while minimizing ptosis, optimize color match to surrounding facial skin, maintain anatomic position of the auricle, and to perform facial nerve rehabilitation in cases in which the facial nerve is removed. METHODS AND RESULTS: For many complex parotid defects, the lateral arm free tissue transfer achieves these reconstructive goals and is the ideal donor site for microvascular reconstruction...
February 7, 2017: Head & Neck
https://www.readbyqxmd.com/read/28168640/3d-computer-graphical-anatomy-study-of-the-femur-a-basis-for-a-new-nail-design
#7
Beat Schmutz, Stanley Kmiec, Martin E Wullschleger, Martin Altmann, Michael Schuetz
BACKGROUND: Current intramedullary nails with a radius of curvature (ROC) of 1500-2000 mm sometimes cause distal anterior cortical encroachment. Furthermore, clinical data indicate that the proximal nail end is too long for some Asian patients. The objective of our study was to develop a comprehensive 3D measurement protocol that measures both the anatomy of the canal and the proximal region. The protocol was used to obtain measurements from Caucasian and Asian (Japanese and Thai) specimens...
March 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28153134/distinctive-head-and-neck-bone-and-soft-tissue-neoplasms
#8
REVIEW
Bibianna Purgina, Chi K Lai
Benign and malignant primary bone and soft tissue lesions of the head and neck are rare. The uncommon nature of these tumors, combined with the complex anatomy of the head and neck, pose diagnostic challenges to pathologists. This article describes the pertinent clinical, radiographic, and pathologic features of selected bone and soft tissue tumors involving the head and neck region, including angiofibroma, glomangiopericytoma, rhabdomyosarcoma, biphenotypic sinonasal sarcoma, chordoma, chondrosarcoma, and osteosarcoma...
March 2017: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/28149811/usefulness-of-cbct-and-guidance-software-for-percutaneous-embolization-of-a-lymphatic-leakage-after-thyroidectomy-for-cancer
#9
Anna Maria Ierardi, Vincenzo Pappalardo, Xiaoli Liu, Che-Wei Wu, Angkoon Anuwong, Hoon Yub Kim, Renbin Liu, Matteo Lavazza, Davide Inversini, Andrea Coppola, Chiara Floridi, Luigi Boni, Gianpaolo Carrafiello, Gianlorenzo Dionigi
Lymphatic leakage can develop as an iatrogenic complication of thoracic, cardiac, and neck surgery. The management of this complication may be challenging and involves more specialists. Percutaneous, image-guided techniques may offer two advantages: mini-invasivity and ability to image and identify the anatomy and the site of the leakage. We report a case of refractory cervical chylous leakage after thyroidectomy and lymphadenectomy for cancer that was successfully treated with an ultrasound-guided intranodal lymphangiography and a percutaneous puncture of the leak performed using CBCT as imaging guidance...
December 2016: Gland Surgery
https://www.readbyqxmd.com/read/28149735/dynamic-hip-examination-for-assessment-of-impingement-during-hip-arthroscopy
#10
Renato Locks, Jorge Chahla, Justin J Mitchell, Eduardo Soares, Marc J Philippon
Arthroscopic procedures for treatment of hip pathology are growing exponentially as a result of continued improvements in the understanding of intra- and extra-articular hip anatomy and technological advancements in instrumentation. Nevertheless, it has been reported that the main cause of revision hip arthroscopy is related to a suboptimal intrasurgical management of the abnormal morphology in femoroacetabular impingement (FAI). Under-resection, over-resection, and in some cases combined under-resection and over-resection at different locations of the cam lesion at the femoral head-neck junction may lead to poor outcomes as a result of residual impingement or the iatrogenic creation of structural instability...
December 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28138794/perforator-variability-in-the-anterolateral-thigh-free-flap-a-systematic-review
#11
REVIEW
Ross K Smith, James Wykes, David T Martin, Navin Niles
OBJECTIVES: The use of free flaps greatly improves reconstruction options and quality of life for patients undergoing oncological resections. The anterolateral thigh (ALT) free flap is frequently used in the head and neck. The aim of this review was to provide a summary of published evidence assessing perforator anatomy of this flap. METHODS: A broad search was undertaken through the PubMed database using the terms "anterolateral thigh free flap" and "perforator"...
January 30, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28133577/neck-biomechanics-indicate-that-giant-transylvanian-azhdarchid-pterosaurs-were-short-necked-arch-predators
#12
Darren Naish, Mark P Witton
Azhdarchid pterosaurs include the largest animals to ever take to the skies with some species exceeding 10 metres in wingspan and 220 kg in mass. Associated skeletons show that azhdarchids were long-necked, long-jawed predators that combined a wing planform suited for soaring with limb adaptations indicative of quadrupedal terrestrial foraging. The postcranial proportions of the group have been regarded as uniform overall, irrespective of their overall size, notwithstanding suggestions that minor variation may have been present...
2017: PeerJ
https://www.readbyqxmd.com/read/28130028/a-domestic-porcine-model-for-studying-the-effects-of-radiation-on-head-and-neck-cancers
#13
Christoph R Arnold, Frank Kloss, Sarvpreet Singh, Danijela Vasiljevic, Robert Stigler, Thomas Auberger, Volker Wenzel, Günter Klima, Peter Lukas, Günter Lepperdinger, Robert Gassner
BACKGROUND: Radiation therapy (RT) of the head and neck region is often accompanied by serious side effects. Research in this area is needed to improve treatment outcomes and ameliorate therapy tolerance. Laboratory rodents are barely matching today's clinical standards in RT research. Yet domestic swine (Sus scrofa domestica) have previously proved suitable for various advanced tests in clinical research and training. We therefore investigated whether S. scrofa domestica is also appropriate for irradiation of the mandible...
December 7, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28128541/fenestrated-and-chimney-endovascular-aneurysm-repair-versus-open-surgery-for-complex-abdominal-aortic-aneurysms
#14
Vicente A Sala-Almonacil, José M Zaragozá-García, Mauricio Ramírez-Montoya, Vicente Molina-Nácher, Inmaculada Martínez-Perelló, Francisco J Gómez-Palonés
BACKGROUND: Many patients with complex abdominal aortic aneurysms are unfit for open repair. New endovascular technologies and bailout techniques are being used for managing those complex anatomies. The purpose of this study is to compare the results obtained with advanced endovascular aneurysm repair techniques (fenestrated and chimney endografts) to those obtained with open repair for the treatment of complex abdominal aortic aneurysms not anatomically suitable for standard endovascular exclusion (infrarenal neck <10 mm, juxtarenal, suprarenal and Crawford's type IV thoracoabdominal aneurysms)...
January 27, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28127497/descent-of-mesonephric-duct-to-the-final-position-of-the-vas-deferens-in-human-embryo-and-fetus
#15
Zhe Wu Jin, Hiroshi Abe, Nobuyuki Hinata, Xiang Wu Li, Gen Murakami, José Francisco Rodríguez-Vázquez
Because the ureter arises from the mesonephric or Wolffian duct (WD), the WD opening should migrate inferiorly along the urogenital sinus or future urethra. However, this process of descent has not been evaluated morphometrically in previous studies and we know little about intermediate morphologies for the descent. In the present work, serial sagittal sections of 15 specimens at gestational age 6-12 weeks and serial horizontal sections of 20 specimens at 6-10 weeks were analyzed. Monitoring of horizontal sections showed that, until 9 weeks, a heart-, lozenge- or oval-shape of the initial urogenital sinus remained in the bladder and urethra...
December 2016: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/28126997/book-review-illustrated-anatomy-of-the-head-and-neck-5th-edition
#16
S Abdul-Razzak
No abstract text is available yet for this article.
January 27, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28121899/anatomy-for-plastic-surgery-of-the-face-head-and-neck
#17
James E Zins, Gehaan F D'Souza
No abstract text is available yet for this article.
February 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28116505/total-hip-arthroplasty-after-failed-treatment-of-proximal-femur-fracture
#18
Tomonori Tetsunaga, Kazuo Fujiwara, Hirosuke Endo, Tomoyuki Noda, Tomoko Tetsunaga, Toru Sato, Naofumi Shiota, Toshifumi Ozaki
INTRODUCTION: Total hip arthroplasty (THA) is a good option as a salvage procedure after failed treatment of proximal femur fracture. The anatomy of the proximal femur, however, makes this surgery complicated and challenging. The purpose of this study was to evaluate the radiographic and clinical outcomes of THA after failed treatment of proximal femur fractures. MATERIALS AND METHODS: We retrospectively analysed 50 consecutive THAs (42 women, 8 men; mean age 77 years) after failed treatment of a proximal femur fracture...
January 23, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28111694/progressive-femoroacetabular-impingement-after-complete-excision-of-osteoid-osteoma-in-adolescents-a-report-of-two-cases
#19
Woo Young Jang, Soon Hyuck Lee, Il Youp Cho
This article highlights that the long-term and serial follow-up of adolescents with osteoid osteoma should be considered, even after complete excision of the nidus owing to the possibility of the delayed onset or progression of femur head and neck deformities or osteoarthritis. It is important to recognize the sequelae of osteoid osteomas, such as bone edema and new bone formation, which can alter the normal anatomy of the proximal femur. We report two cases of osteoid osteoma in the proximal femur, which showed progressive hypertrophy of the femoral neck after excision of the nidus and subsequent cam-type femoroacetabular impingement (FAI), requiring additional osteochondroplasty procedures...
January 22, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28101594/michael-schuenke-erik-schulte-udo-schumacher-editors-atlas-of-anatomy-head-neck-and-neuroanatomy-thieme-publishers-new-york-2016-isbn-978-1-62623-120-7
#20
Sara Maria Delle Acque Giorgio, Luigi Mansi
No abstract text is available yet for this article.
January 18, 2017: European Journal of Nuclear Medicine and Molecular Imaging
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