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https://www.readbyqxmd.com/read/28936552/rational-and-simplified-nomenclature-for-buccinator-myomucosal-flaps
#1
Olindo Massarelli, Luigi Angelo Vaira, Andrea Biglio, Roberta Gobbi, Pasquale Piombino, Giacomo De Riu
BACKGROUND: Reconstruction of moderate-sized mucosal defects of the oral cavity or oropharynx represents a surgical challenge. Buccinator myomucosal flaps seem to provide "ideal reconstruction" of oral/oropharyngeal defects because they carry a thin, mobile, well-vascularized, and sensitive tissue, like that excised or lost. Nevertheless, these flaps are not immediately popular because of confusion surrounding the complex terminology used to name them. METHODS: After a retrospective study on our experience and a literature review, the authors propose a new rational and simplified nomenclature for the classification of buccinator myomucosal flaps, which clarifies the source vessel, the composition of the flap, and the type of transfer...
September 21, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28932725/ileocolonic-transposition-esophagogastric-bypass-as-an-antireflux-treatment-for-corrosive-esophageal-injury
#2
Yuda Handaya, Mukhamad Sunardi
Because most surgeons perform an esophagectomy and colonic transposition as the main reconstruction method for patients with esophageal stenosis caused by swallowing corrosive materials, we report 2 cases in which ileocolonic transposition was used to treat such patients. Both patients displayed stenosis in the middle third of the esophagus. Their chief complaint was dysphagia. Ileocolonic transposition using vascularization of the Drummond and ileal arteries was followed by a prepared ileocolic graft by ligating ileocolic vessels...
August 2017: Annals of Coloproctology
https://www.readbyqxmd.com/read/28932697/thoracic-wall-trauma-misdiagnosed-lesions-on-radiographs-and-usefulness-of-ultrasound-multidetector-computed-tomography-and-magnetic-resonance-imaging
#3
REVIEW
Xavier Tomas, Catherine Facenda, Nuno Vaz, Edgar Augusto Castañeda, Montserrat Del Amo, Ana Isabel Garcia-Diez, Jaime Pomes
Blunt injuries to the chest wall are an important chapter on emergency room (ER) departments, being the third most common injuries in trauma patients which ominous complications could appear. This article describes different types of traumatic events affecting the chest wall, which maybe misdiagnosed with conventional X-ray. Special emphasis has been done in computed tomography (CT) and multidetector CT (MDCT) imaging. This technique is considered the "gold-standard" for those traumatic patients, due to its fast acquisition covering the whole area of interest in axial plane, reconstructing multiplanar (2D, 3D) volume-rendered images with a superb quality and angiographic CT capabilities for evaluating vascular damage...
August 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28932303/the-influence-of-anterior-cruciate-ligament-remnant-on-postoperative-clinical-results-in-patients-with-remnant-preserving-anterior-cruciate-ligament-reconstruction
#4
Alan Andonovski, Sonja Topuzovska, Milan Samardziski, Zoran Bozinovski, Biljana Andonovska, Zlatko Temelkovski
BACKGROUND: Anterior Cruciate Ligament (ACL) remnants have important biomechanical, vascular and proprioceptive function. AIM: To determine the influence of the ACL residual remnants after partial and complete ACL ruptures on postoperative clinical results in patients with remnant preserving ACL reconstruction. PATIENTS AND METHODS: The study included 66 patients divided into two groups. In patients from the investigation group remnant preserving ACL reconstruction was performed, in patients from the control group single bundle ACL reconstruction was performed...
August 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28932236/quantitative-evaluation-of-temporal-regularizers-in-compressed-sensing-dynamic-contrast-enhanced-mri-of-the-breast
#5
Dong Wang, Lori R Arlinghaus, Thomas E Yankeelov, Xiaoping Yang, David S Smith
PURPOSE: Dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) is used in cancer imaging to probe tumor vascular properties. Compressed sensing (CS) theory makes it possible to recover MR images from randomly undersampled k-space data using nonlinear recovery schemes. The purpose of this paper is to quantitatively evaluate common temporal sparsity-promoting regularizers for CS DCE-MRI of the breast. METHODS: We considered five ubiquitous temporal regularizers on 4...
2017: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/28930985/visualizing-angiogenesis-by-multiphoton-microscopy-in-vivo-in-genetically-modified-3d-plga-nhap-scaffold-for-calvarial-critical-bone-defect-repair
#6
Jian Li, Holger Jahr, Wei Zheng, Pei-Gen Ren
The reconstruction of critically sized bone defects remains a serious clinical problem because of poor angiogenesis within tissue-engineered scaffolds during repair, which gives rise to a lack of sufficient blood supply and causes necrosis of the new tissues. Rapid vascularization is a vital prerequisite for new tissue survival and integration with existing host tissue. The de novo generation of vasculature in scaffolds is one of the most important steps in making bone regeneration more efficient, allowing repairing tissue to grow into a scaffold...
September 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930925/conical-modification-of-forearm-free-flaps-for-single-stage-reconstruction-after-total-orbital-exenteration
#7
Chad A Purnell, Elbert E Vaca, Marco F Ellis
BACKGROUND: Orbital exenteration is a significant reconstructive challenge for plastic surgeons. Options described for these defects range from healing by secondary intention to free tissue transfer. The authors present our preferred reconstruction of orbital defects with free forearm-based flaps, which provides quality soft tissue and orbital contouring in 1 stage to consistently allow placement of bone-anchored implants for eventual orbital prosthesis. METHODS: This conical shape of the orbit is deconstructed into a "Pac-Man" type shaped flap that leaves adequate depth for a prosthesis...
September 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28926380/osseointegrated-transtibial-implants-in-patients-with-peripheral-vascular-disease-a-multicenter-case-series-of-5-patients-with-1-year-follow-up
#8
MULTICENTER STUDY
Robin Atallah, Jiao Jiao Li, William Lu, Ruud Leijendekkers, Jan Paul Frölke, Munjed Al Muderis
BACKGROUND: Osseointegration is an alternative treatment for amputees who are unable to wear or have difficulty wearing a socket prosthesis. Although the majority of limb amputations are due to vascular disease, such amputations have been perceived as a contraindication to osseointegration surgery. We report the outcomes of osseointegrated reconstruction in a series of 5 patients with limb amputation due to peripheral vascular disease. METHODS: Five patients with transtibial amputation and a history of peripheral vascular disease who received an osseointegration implant from 2014 to 2015 were followed for 12 months...
September 20, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28926370/photon-counting-computed-tomography-for-vascular-imaging-of-the-head-and-neck-first-in-vivo-human-results
#9
Rolf Symons, Daniel S Reich, Mohammadhadi Bagheri, Tyler E Cork, Bernhard Krauss, Stefan Ulzheimer, Steffen Kappler, David A Bluemke, Amir Pourmorteza
PURPOSE: The purpose of this study was to evaluate image quality of a spectral photon-counting detector (PCD) computed tomography (CT) system for evaluation of major arteries of the head and neck compared with conventional single-energy CT scans using energy-integrating detectors (EIDs). METHODS: In this institutional review board-approved study, 16 asymptomatic subjects (7 men) provided informed consent and received both PCD and EID contrast-enhanced CT scans of the head and neck (mean age, 58 years; range, 46-75 years)...
September 18, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28926171/biliary-reconstructive-techniques-and-associated-anatomic-variants-in-adult-living-donor-liver-transplants-the-a2all-experience
#10
Talia B Baker, Michael A Zimmerman, Nathan P Goodrich, Benjamin Samstein, Elizabeth A Pomfret, James J Pomposelli, Brenda W Gillespie, Carl L Berg, Jean C Emond, Robert M Merion
INTRODUCTION: Living donor liver transplantation (LDLT) is a technically demanding endeavor, requiring command of the complex anatomy of partial liver grafts. We examined the influence of anatomic variation and reconstruction technique on surgical outcomes and graft survival in the nine-center A2ALL Study. METHODS: Data from 272 adult LDLT recipients (2011-2015) included details on anatomic characteristics and types of intraoperative biliary reconstruction. Associations were tested between reconstruction technique and complications, which included first biliary complication ([BC]; leak, stricture, or biloma) and first vascular complication (hepatic artery thrombosis [HAT] or portal vein thrombosis [PVT])...
September 19, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28925086/optimizing-hepatic-venous-outflow-reconstruction-for-hepatic-vein-stenosis-with-indwelling-stent-in-living-donor-liver-retransplantation
#11
Takanobu Shigeta, Seisuke Sakamoto, Kengo Sasaki, Hajime Uchida, Soichi Narumoto, Akinari Fukuda, Mureo Kasahara
The patient was a boy of 7 years and 5 months of age, who underwent LDLT for acute liver failure at 10 months of age. HV stent placement was performed 8 months after LDLT because of intractable HV stenosis. At 7 years of age, his liver function deteriorated due to chronic rejection. The patient therefore underwent living donor liver retransplantation from his father. The HV was transected with the stent in situ. The IVC was resected due to stenosis. The pericardial cavity was opened and detached around the IVC to elongate the IVC...
September 18, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28922244/fibular-graft-effective-panorama-for-prosthetic-rehabilitation-of-resected-mandible
#12
Pankaj Kharade, Saidul Islam, Mahesh Verma, Swati Sharma, Ranjeet Bodh
Surgical management of extensive tumors in the mandibular region leads to massive disfigurement of the face. Also the prosthetic outcome of such patients rehabilitated with free soft tissue flaps is very poor. Reconstruction of extensive defects to overcome the disfigurement is a challenging procedure and can be achieved with free fibula flap. Free fibula graft provides sufficient length of bone for the reconstruction of the postsurgical defects. Excellent vascularity of fibula flap allows for easy uptake of the graft and osseointegration of the dental implants...
September 15, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28921939/extreme-hepatic-resections-for-the-treatment-of-advanced-hepatoblastoma-are-planned-close-margins-an-acceptable-approach
#13
Adriana Fonseca, Abha Gupta, Furqan Shaikh, Raveena Ramphal, Vicky Ng, Ian McGilvray, J Ted Gerstle
BACKGROUND: Orthotopic liver transplantation (OLT) is considered the standard for children with hepatoblastoma (HB) in whom complete surgical resection is not possible. However, OLT is not always available or feasible. OBJECTIVE: To describe the outcome of children with HB who were initially deemed unresectable and underwent complex hepatectomy with planned close margins, and ultimately avoided OLT. METHODS: Demographic data, surgical and pathologic details, and survival information were collected from children treated for HB between January 2010 to December 2015...
September 17, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28920546/blood-supply-and-vascularity-of-the-glenoid-labrum-its-clinical-implications
#14
Abduelmenem Alashkham, Abdulrahman Alraddadi, Paul Felts, Roger Soames
BACKGROUND: Tears of the glenoid labrum are common after dislocation of the glenohumeral joint. The outcome for healing or surgical reconstruction of the glenoid labrum relies on the extent of its vascularization. This study aims to evaluate the glenoid labrum blood supply and to determine its regional vascularity. MATERIALS AND METHODS: A total of 140 shoulders (30 male and 40 female cadavers) were examined: mean age 81.5 years, range 53-101 years. All blood vessels around the glenohumeral joint were dissected and recorded...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28915929/the-combination-of-stem-cells-and-tissue-engineering-an-advanced-strategy-for-blood-vessels-regeneration-and-vascular-disease-treatment
#15
REVIEW
Ying Wang, Pei Yin, Guang-Liang Bian, Hao-Yue Huang, Han Shen, Jun-Jie Yang, Zi-Ying Yang, Zhen-Ya Shen
Over the past years, vascular diseases have continued to threaten human health and increase financial burdens worldwide. Transplantation of allogeneic and autologous blood vessels is the most convenient treatment. However, it could not be applied generally due to the scarcity of donors and the patient's condition. Developments in tissue engineering are contributing greatly with regard to this urgent need for blood vessels. Tissue engineering-derived blood vessels are promising alternatives for patients with aortic dissection/aneurysm...
September 15, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28910897/-the-application-of-microvascular-anastomotic-coupler-in-vascular-anastomosis-of-free-tissue-flap-for-reconstruction-of-defect-after-head-and-neck-cancer-resection
#16
Y J Zhang, Z H Wang, C H Li, J Chen
Objective: To investigate the application and operation skills in vein anastomosis by microvascular anastomotic coupler (MAC) in reconstruction of defects after head and neck cancer resection. Methods: From August 2015 to July 2016, in Department of Head and Neck Surgery, Sichuan Cancer Hosipital, 17 cases underwent the reconstruction of defects after head and neck cancer resection with free tissue flaps, including forearm flaps in 11 casess, anterolateral flaps in 4 casess and fibula flaps in 2 casess. Totally 17 MAC were used, including 14 MAC for end-to-end anastomosis and 3 MAC for end-to-side anastomosis...
September 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28910397/a-three-dimensional-strain-measurement-method-in-elastic-transparent-materials-using-tomographic-particle-image-velocimetry
#17
Azuma Takahashi, Sara Suzuki, Yusuke Aoyama, Mitsuo Umezu, Kiyotaka Iwasaki
BACKGROUND: The mechanical interaction between blood vessels and medical devices can induce strains in these vessels. Measuring and understanding these strains is necessary to identify the causes of vascular complications. This study develops a method to measure the three-dimensional (3D) distribution of strain using tomographic particle image velocimetry (Tomo-PIV) and compares the measurement accuracy with the gauge strain in tensile tests. METHODS AND FINDINGS: The test system for measuring 3D strain distribution consists of two cameras, a laser, a universal testing machine, an acrylic chamber with a glycerol water solution for adjusting the refractive index with the silicone, and dumbbell-shaped specimens mixed with fluorescent tracer particles...
2017: PloS One
https://www.readbyqxmd.com/read/28906326/tissue-engineering-strategies-for-auricular-reconstruction
#18
Michael J Schroeder, Mark S Lloyd
Simulating natural characteristics and aesthetics in reconstructed ears has provided a complex 3-dimensional puzzle for those treating patients with microtia. Costochondral grafts remain the gold standard for autologous reconstruction. However, other options such as Medpor and prosthetics are indicated depending on patient circumstances and personal choice. Research into tissue engineering offers an alternative method to a traditional surgical approach that may reduce donor-site morbidity. However, tissue engineering for microtia reconstruction brings new challenges such as cell sourcing, promotion of chondrogenesis, scaffold vascularization, and prevention of scaffold contraction...
September 12, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28902827/-repeat-prosthetic-repair-of-the-internal-carotid-artery
#19
K S Zamskiĭ, A D Shatokhina, A Iu Zavarzin, G V Mashtanov
Described herein is a clinical case report regarding reoperation on carotid arteries for thrombosis of a synthetic graft of the internal carotid artery in a patient presenting with a multifocal atherosclerotic lesion. Despite medicamentous treatment carried out after the primary operation, the presence of major risk factors had unfavourably contributed to progression of the disseminated atherosclerotic process. During eight years, the patient had endured reconstructive interventions on the brachiocephalic and coronary arteries, as well as on the vessels of the iliac-femoral-popliteal segment...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28902743/use-of-an-alternative-surgical-corridor-in-oblique-lateral-interbody-fusion-at-the-l5-s1-segment-a-technical-report
#20
Nam-Su Chung, Chang-Hoon Jeon, Han-Dong Lee
STUDY DESIGN: Technical report. OBJECTIVE: To demonstrate the use of an alternative surgical corridor in oblique lateral interbody fusion (OLIF) at the L5-S1 segment. SUMMARY OF BACKGROUND DATA: OLIF L5-S1 is essentially performed through the central disk space between the bifurcations of the iliac vessels, which is sometimes difficult due to the vascular structures that obstruct the surgical field. Another concern is retrograde ejaculation following superior hypogastric plexus injury in male patients...
September 11, 2017: Clinical Spine Surgery
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