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Biologic mesh

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https://www.readbyqxmd.com/read/27924393/autologous-augmentation-of-hiatal-hernia-repair-with-filtered-platelet-concentrate-improves-tissue-remodeling-in-a-swine-model
#1
Maria S Altieri, Gabriel Pagnotti, Angelique Corthals, Kenneth Shroyer, Aurora D Pryor, Mark Talamini, Dana A Telem
INTRODUCTION: Autologus augmentation of wound remodeling with platelet concentrate is a burgeoning field with promising results. We hypothesized that the addition of filtered platelet concentrate (fPC) to an acellular biologic graft would improve crural healing and tissue integrity in hiatal hernia repair. METHODS: Sixteen healthy Yorkshire female pigs were divided into three groups: hiatus repair (HR) (n = 7), HR with biologic graft (HRM; n = 8, and HR with biologic graft and fPC (fPC; n = 9)...
December 6, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/27920698/a-case-of-en-bloc-excision-of-a-chest-wall-leiomyosarcoma-and-closure-of-the-defect-with-non-cross-linked-collagen-matrix-egis-%C3%A2
#2
Marco Rastrelli, Saveria Tropea, Romina Spina, Alessandra Costa, Roberto Stramare, Simone Mocellin, Maria Giuseppina Bonavina, Carlo Riccardo Rossi
Sarcomas arising from the chest wall account for less than 20% of all soft tissue sarcomas, and at this site, primitive tumors are the most frequent to occur. Leiomyosarcoma is a malignant smooth muscle tumor and the best outcomes are achieved with wide surgical excision. Although advancements have been made in treatment protocols, leiomyosarcoma remains one of the more difficult soft tissue sarcoma to treat. Currently, general local control is obtained with surgical treatment with wide negative margins. We describe the case of a 50-year-old man who underwent a chest wall resection involving a wide portion of the pectoralis major and minor muscle, the serratus and part of the second, third and fourth ribs of the left side...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/27906759/development-of-a-disease-based-hernia-program-and-the-impact-on-cost-for-a-hospital-system
#3
David M Krpata, Ivy N Haskins, Steven Rosenblatt, Sharon Grundfest, Ajita Prabhu, Michael J Rosen
OBJECTIVE: The aim of this study was to assess the impact of developing a hernia program on mesh utilization. BACKGROUND: With the ongoing changes in healthcare, the value of all interventions will see increased scrutiny. Hernia mesh can be one of the most costly components of hernia repairs. A disease-based institutional hernia program that defines roles for mesh utilization and measures outcomes has the potential to add significant value to hospital systems. METHODS: In August 2014, a disease-based hernia program was initiated across a hospital system...
November 30, 2016: Annals of Surgery
https://www.readbyqxmd.com/read/27903195/dosimetric-effects-of-onyx-embolization-on-gamma-knife-arteriovenous-malformation-dose-distributions
#4
David J Schlesinger, Håkan Nordström, Anders Lundin, Zhiyuan Xu, Jason P Sheehan
OBJECTIVE Patients with arteriovenous malformations (AVMs) treated with Gamma Knife radiosurgery (GKRS) subsequent to embolization suffer from elevated local failure rates and differences in adverse radiation effects. Onyx is a common embolic material for AVMs. Onyx is formulated with tantalum, a high atomic number (Z = 73) element that has been investigated as a source of dosimetric uncertainty contributing to the less favorable clinical results. However, prior studies have not modeled the complicated anatomical and beam geometries characteristic of GKRS...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27901278/surgery-for-women-with-anterior-compartment-prolapse
#5
REVIEW
Christopher Maher, Benjamin Feiner, Kaven Baessler, Corina Christmann-Schmid, Nir Haya, Julie Brown
BACKGROUND: To minimise the rate of recurrent prolapse after traditional native tissue repair (anterior colporrhaphy), clinicians have utilised a variety of surgical techniques. OBJECTIVES: To determine the safety and effectiveness of surgery for anterior compartment prolapse. SEARCH METHODS: We searched the Cochrane Incontinence Group Specialised Register, including the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, MEDLINE In Process (23 August 2016), handsearched journals and conference proceedings (15 February 2016) and searched trial registers (1 August 2016)...
November 30, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27885781/cellular-response-of-osteoblasts-to-low-modulus-ti-24nb-4zr-8sn-alloy-mesh-structure
#6
K C Nune, R D K Misra, S J Li, Y L Hao, R Yang
Titanium alloys (Ti-6Al-4V and Ti-6Al-7Nb) are widely used for implants, which are characterized by high elastic modulus (∼110 GPa) with (α + β) structure and that may induce undesirable stress shielding effect and immune responses associated with the presence of toxic elements. In this regard, we have combined the attributes of a new alloy design and the concept of additive manufacturing to fabricate 3D scaffolds with an interconnected porous structure. The new alloy is a β-type Ti-24Nb-4Zr-8Sn (Ti2448) alloy with significantly reduced modulus...
November 25, 2016: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/27885515/biological-mesh-extrusion-months-after-laparoscopic-ventral-rectopexy
#7
P Sileri, M Shalaby, A Orlandi
No abstract text is available yet for this article.
November 24, 2016: Techniques in Coloproctology
https://www.readbyqxmd.com/read/27872676/progressive-and-self-limiting-neurodegenerative-disorders-in-africa-a-new-prominent-field-of-research-led-by-south-africa-but-without-strong-health-policy
#8
Brice Poreau
INTRODUCTION: Neurodegenerative disorders are involved in mortality and morbidity of every country. A high prevalence is estimated in Africa. Neurodegenerative disorders are defined by a progressive or self-limiting alteration of neurons implied in specific functional and anatomical functions. It encompasses a various range of clinical disorders from self-limiting to progressive. Focus on public health policies and scientific research is needed to understand the mechanisms to reduce this high prevalence...
2016: Pan African Medical Journal
https://www.readbyqxmd.com/read/27862362/morphometric-traits-of-gizzard-in-relation-to-feeding-habits-of-wild-sardinian-partridges-alectoris-barbara-barbara-bonnaterre-1790-with-particular-regard-to-clast-selection
#9
M G Cappai, G Arru, M Manconi, M Muzzeddu, W Pinna
Housing and feeding practices of wild birds for conservation management of biodiversity or restocking play a crucial role in determining the survival rates of animals when released into nature. Failure in coping with the environment might be one of the main flaws captive animals can experience when put into natural habitat. The present investigation aimed at exploring feeding habits and related morphometric traits of gizzard with respective content from wild partridges in comparison with captive ones. A total of 52 hunted wild Sardinian adult partridges (Alectoris barbara barbara Bonnaterre, 1790) were used...
November 13, 2016: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/27853896/discrete-mesh-approach-in-morphogenesis-modelling-the-example-of-gastrulation
#10
J Demongeot, A Lontos, E Promayon
Morphogenesis is a general concept in biology including all the processes which generate tissue shapes and cellular organizations in a living organism. Many hybrid formalizations (i.e., with both discrete and continuous parts) have been proposed for modelling morphogenesis in embryonic or adult animals, like gastrulation. We propose first to study the ventral furrow invagination as the initial step of gastrulation, early stage of embryogenesis. We focus on the study of the connection between the apical constriction of the ventral cells and the initiation of the invagination...
November 16, 2016: Acta Biotheoretica
https://www.readbyqxmd.com/read/27851950/modeling-of-transmembrane-potential-in-realistic-multicellular-structures-before-electroporation
#11
Tomo Murovec, Daniel C Sweeney, Eduardo Latouche, Rafael V Davalos, Christian Brosseau
Many approaches for studying the transmembrane potential (TMP) induced during the treatment of biological cells with pulsed electric fields have been reported. From the simple analytical models to more complex numerical models requiring significant computational resources, a gamut of methods have been used to recapitulate multicellular environments in silico. Cells have been modeled as simple shapes in two dimensions as well as more complex geometries attempting to replicate realistic cell shapes. In this study, we describe a method for extracting realistic cell morphologies from fluorescence microscopy images to generate the piecewise continuous mesh used to develop a finite element model in two dimensions...
November 15, 2016: Biophysical Journal
https://www.readbyqxmd.com/read/27849389/core-stability-exercise-versus-general-exercise-for-chronic-low-back-pain
#12
Brian J Coulombe, Kenneth E Games, Elizabeth R Neil, Lindsey E Eberman
: Reference: Wang XQ, Zheng JJ, Yu ZW, et al. A meta-analysis of core stability exercise versus general exercise for chronic low back pain. PLoS One. 2012;7(12):e52082. Clinical Questions: Is core stability exercise more effective than general exercise in the treatment of patients with nonspecific low back pain (LBP)? DATA SOURCES: The authors searched the following databases: China Biological Medicine disc, Cochrane Library, Embase, and PubMed from 1970 through 2011...
November 16, 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27816351/influence-of-air-scouring-on-the-performance-of-a-self-forming-dynamic-membrane-bioreactor-sfd-mbr-for-municipal-wastewater-treatment
#13
Carlo Salerno, Pompilio Vergine, Giovanni Berardi, Alfieri Pollice
The Membrane BioReactor (MBR) is a well-established filtration-based technology for wastewater treatment. Despite the high quality of the effluent produced, one of the main drawbacks of the MBR is membrane fouling. In this context, a possible evolution towards systems having potentially lower installation and operating costs is the Self Forming Dynamic Membrane BioReactor (SFD MBR). Key of this technology is the self-formation of a biological filtering layer on a support of inert material. In this work, a lab-scale aerobic SFD MBR equipped with a nylon mesh was operated at approximately 95Lm(-2)h(-1)...
October 21, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27810091/primary-fascial-closure-with-biologic-mesh-reinforcement-results-in-lesser-complication-and-recurrence-rates-than-bridged-biologic-mesh-repair-for-abdominal-wall-reconstruction-a-propensity-score-analysis
#14
Salvatore Giordano, Patrick B Garvey, Donald P Baumann, Jun Liu, Charles E Butler
BACKGROUND: Previous studies suggest that bridged mesh repair for abdominal wall reconstruction may result in worse outcomes than mesh-reinforced, primary fascial closure, particularly when acellular dermal matrix is used. We compared our outcomes of bridged versus reinforced repair using ADM in abdominal wall reconstruction procedures. METHODS: This retrospective study included 535 consecutive patients at our cancer center who underwent abdominal wall reconstruction either for an incisional hernia or for abdominal wall defects left after excision of malignancies involving the abdominal wall with underlay mesh...
October 31, 2016: Surgery
https://www.readbyqxmd.com/read/27796445/biologic-therapies-and-bone-loss-in-rheumatoid-arthritis
#15
REVIEW
C A F Zerbini, P Clark, L Mendez-Sanchez, R M R Pereira, O D Messina, C R Uña, J D Adachi, W F Lems, C Cooper, N E Lane
INTRODUCTION: Rheumatoid arthritis (RA) is a common systemic autoimmune disease of unknown cause, characterized by a chronic, symmetric, and progressive inflammatory polyarthritis. One of the most deleterious effects induced by the chronic inflammation of RA is bone loss. During the last 15 years, the better knowledge of the cytokine network involved in RA allowed the development of potent inhibitors of the inflammatory process classified as biological DMARDs. These new drugs are very effective in the inhibition of inflammation, but there are only few studies regarding their role in bone protection...
October 31, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27783142/revisiting-the-anterior-rectus-sheath-repair-for-incisional-hernia-a-10-year-experience
#16
Erica I Hodgman, Mark J Watson
BACKGROUND: Surgeons continue to seek an incisional hernia repair technique which minimizes cost and morbidity while maximizing durability. We present a single surgeon's experience with a technique described by N.L. Browse and J.P. Chevrel in 1979. METHODS: The Chevrel/Browse repair consists of a bilateral anterior rectus sheath release, hernia sac imbrication, bilateral rectus complex medialization, and repair reinforcement with an anterior prosthetic mesh. Data were collected on all patients who underwent herniorrhaphy between April 2003 and April 2013...
October 25, 2016: World Journal of Surgery
https://www.readbyqxmd.com/read/27770633/polymer-fiber-based-models-of-connective-tissue-repair-and-healing
#17
Nancy M Lee, Cevat Erisken, Thomas Iskratsch, Michael Sheetz, William N Levine, Helen H Lu
Physiologically relevant models of wound healing are essential for understanding the biology of connective tissue repair and healing. They can also be used to identify key cellular processes and matrix characteristics critical for the design of soft tissue grafts. Modeling the various stages of repair post tendon injury, polymer meshes of varying fiber diameter (nano-1 (390 nm) < nano-2 (740 nm) < micro (1420 nm)) were produced. Alignment was also introduced in the nano-2 group to model matrix undergoing biological healing rather than scar formation...
January 2017: Biomaterials
https://www.readbyqxmd.com/read/27768621/biological-mesh-closure-of-the-pelvic-floor-after-extralevator-abdominoperineal-resection-for-rectal-cancer-a-multicenter-randomized-controlled-trial-the-biopex-study
#18
Gijsbert D Musters, Charlotte E L Klaver, Robbert J I Bosker, Jacobus W A Burger, Peter van Duijvendijk, Boudewijn van Etten, Anna A W van Geloven, Eelco J R de Graaf, Christiaan Hoff, Jeroen W A Leijtens, Harm J T Rutten, Baljit Singh, Ronald J C L M Vuylsteke, Johannes H W de Wilt, Marcel G W Dijkgraaf, Willem A Bemelman, Pieter J Tanis
OBJECTIVE: To determine the effect of biological mesh closure on perineal wound healing after extralevator abdominoperineal resection (eAPR). BACKGROUND: Perineal wound complications frequently occur after eAPR with preoperative radiotherapy for rectal cancer. Cohort studies have suggested that biological mesh closure of the pelvic floor improves perineal wound healing. METHODS: Patients were randomly assigned to primary closure (standard arm) or biological mesh closure (intervention arm)...
September 20, 2016: Annals of Surgery
https://www.readbyqxmd.com/read/27754767/synthetic-versus-biologic-mesh-in-single-stage-repair-of-complex-abdominal-wall-defects-in-a-contaminated-field
#19
Jad Chamieh, Wen Hui Tan, Ricardo Ramirez, Eden Nohra, Chukwuma Apakama, William Symons
BACKGROUND: Synthetic meshes have been used with varying rates of success in a contaminated setting, although their use is not widely accepted because of concerns for infection. A biologic mesh (BM) is assumed to be more resistant to infection than a synthetic mesh; however, sparse clinical data support this theory. The hypothesis for this study: Uncoated polypropylene synthetic mesh (USM) can be used to obtain a durable repair in the setting of a contaminated abdominal wall reconstruction (AWR) in a single-stage procedure with comparable infectious outcomes to a biologic mesh repair...
October 18, 2016: Surgical Infections
https://www.readbyqxmd.com/read/27732566/extralevator-abdominoperineal-excision-for-rectal-cancer-with-biological-mesh-for-pelvic-floor-reconstruction
#20
Wei Ge, Song-Song Jiang, Wang Qi, Hao Chen, Li-Ming Zheng, Gang Chen
GOAL: To share our experience of extra-levator abdominoperineal excision (ELAPE) for low rectal cancer, focusing on perineal repair with biological mesh. METHODS: We retrospectively analyzed medical records of all patients with low rectal cancer who underwent the ELAPE procedure using biological mesh for perineal repair at the Gastrointestinal Surgery of Nanjing Drum Power Hospital between January 2013 and September 2015. All patients were closely followed up to now...
October 6, 2016: Oncotarget
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