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Mesh traction

Jérôme R D Soiné, Nils Hersch, Georg Dreissen, Nico Hampe, Bernd Hoffmann, Rudolf Merkel, Ulrich S Schwarz
Animal cells use traction forces to sense the mechanics and geometry of their environment. Measuring these traction forces requires a workflow combining cell experiments, image processing and force reconstruction based on elasticity theory. Such procedures have already been established mainly for planar substrates, in which case one can use the Green's function formalism. Here we introduce a workflow to measure traction forces of cardiac myofibroblasts on non-planar elastic substrates. Soft elastic substrates with a wave-like topology were micromoulded from polydimethylsiloxane and fluorescent marker beads were distributed homogeneously in the substrate...
October 6, 2016: Interface Focus
A Willms, S Schaaf, R Schwab, I Richardsen, D Bieler, B Wagner, C Güsgen
PURPOSE: The open abdomen has become a standard technique in the management of critically ill patients undergoing surgery for severe intra-abdominal conditions. Negative pressure and mesh-mediated fascial traction are commonly used and achieve low fistula rates and high fascial closure rates. In this study, long-term results of a standardised treatment approach are presented. METHODS: Fifty-five patients who underwent OA management for different indications at our institution from 2006 to 2013 were enrolled...
September 6, 2016: Hernia: the Journal of Hernias and Abdominal Wall Surgery
Osvaldo Chiara, Stefania Cimbanassi, Walter Biffl, Ari Leppaniemi, Sharon Henry, Thomas M Scalea, Fausto Catena, Luca Ansaloni, Arturo Chieregato, Elvio de Blasio, Giorgio Gambale, Giovanni Gordini, Guiseppe Nardi, Pietro Paldalino, Francesco Gossetti, Paolo Dionigi, Giuseppe Noschese, Gregorio Tugnoli, Sergio Ribaldi, Sebastian Sgardello, Stefano Magnone, Stefano Rausei, Anna Mariani, Francesca Mengoli, Salomone di Saverio, Maurizio Castriconi, Federico Coccolini, Joseph Negreanu, Salvatore Razzi, Carlo Coniglio, Francesco Morelli, Maurizio Buonanno, Monica Lippi, Liliana Trotta, Annalisa Volpi, Luca Fattori, Mauro Zago, Paolo de Rai, Fabrizio Sammartano, Roberto Manfredi, Emiliano Cingolani
BACKGROUND: A part of damage-control laparotomy is to leave the fascial edges and the skin open to avoid abdominal compartment syndrome and allow further explorations. This condition, known as open abdomen (OA), although effective, is associated with severe complications. Our aim was to develop evidence-based recommendations to define indications for OA, techniques for temporary abdominal closure, management of enteric fistulas, and methods of definitive wall closure. METHODS: The literature from 1990 to 2014 was systematically screened according to PRISMA [Preferred Reporting Items for Systematic Reviews and Meta-analyses] protocol...
January 2016: Journal of Trauma and Acute Care Surgery
Christian Beltzer, Alexander Eisenächer, Steffen Badendieck, Dietrich Doll, Markus Küper, Stefan Lenz, Björn Dirk Krapohl
INTRODUCTION: The optimal treatment concept for temporary abdominal closure (TAC) in critically ill visceral surgery patients with open abdomen (OA) continues to be unclear. The VACM (vacuum-assisted closure and mesh-mediated fascial traction) therapy seems to permit higher delayed primary fascial closure rates (FCR) than other TAC procedures. MATERIAL AND METHODS: Patients of our clinic (n=58) who were treated by application of a VAC/VACM treatment manual in the period from 2005 to 2008 were retrospectively analysed...
2016: GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW
A Seternes, L C Rekstad, S Mo, P Klepstad, D L Halvorsen, T Dahl, M Björck, A Wibe
BACKGROUND: Open abdomen treatment (OAT) is a significant burden for patients and is associated with considerable mortality. The primary aim of this study was to report survival and cause of mortality after OAT. Secondary aims were to evaluate length of stay (LOS) in intensive care unit (ICU) and in hospital, time to abdominal closure and major complications. METHODS: Retrospective review of prospectively registered patients undergoing OAT between October 2006 and June 2014 at Trondheim University Hospital, Norway...
August 19, 2016: World Journal of Surgery
M Kääriäinen, M Kuuskeri, M Helminen, H Kuokkanen
BACKGROUND AND AIMS: The open abdomen technique is a standard procedure in the treatment of intra-abdominal catastrophe. Achieving primary abdominal closure within the initial hospitalization is a main objective. This study aimed to analyze the success of closure rate and the effect of negative pressure wound therapy, mesh-mediated medial traction, and component separation on the results. We present the treatment algorithm used in our institution in open abdomen situations based on these findings...
August 15, 2016: Scandinavian Journal of Surgery: SJS
U Petersson, T Bjarnason, M Björck, A Montgomery, P Rogmark, M Svensson, K Sörelius, S Acosta
PURPOSE: To report incisional hernia (IH) incidence, abdominal wall (AW) discomfort and quality of life (QoL) 5 years after open abdomen treatment with vacuum-assisted wound closure and mesh-mediated fascial traction (VAWCM). METHODS: Five-year follow-up of patients included in a prospective study 2006-2009. The protocol included physical examination, patient interview, chart review, questionnaires on abdominal wall and stoma complaints and the SF-36 questionnaire...
October 2016: Hernia: the Journal of Hernias and Abdominal Wall Surgery
Sandeep Aggarwal, Kokkula Praneeth, Yashwant Rathore, Vignesh Waran, Prabhjot Singh
Mesh erosion into visceral organs is a rare complication following laparoscopic mesh repair for inguinal hernia with only 15 cases reported in English literature. We report the first case of complete laparoscopic management of mesh erosion into small bowel and urinary bladder. A 62-year-male underwent laparoscopic total extra-peritoneal repair of left inguinal hernia at another centre in April 2012. He presented to our centre 21 months later with persistent lower urinary tract infection (UTI). On evaluation mesh erosion into bowel and urinary bladder was suspected...
January 2016: Journal of Minimal Access Surgery
J Camilo Correa, D Alejandro Mejía, N Duque, M Montoya J, C Morales Uribe
PURPOSE: To compare the effectiveness of abdominal wall closure using the vacuum-assisted closure (NPC) as described by Barker et al. with an institutional protocol using a double polyvinyl bag in the first surgery, which is changed in subsequent surgeries to a polyvinyl bag placed over the bowel loops and a prolene mesh attached to the abdominal fascia (MMFC). METHODS: Randomized controlled trial. Patients with open abdomen (OA) due to a traumatic or a medical cause were included in the study...
April 2016: Hernia: the Journal of Hernias and Abdominal Wall Surgery
Qian Huang, Jieshou Li, Wan-Yee Lau
Open abdomen (OA) has been an effective treatment for abdominal catastrophes in traumatic and general surgery. However, management of patients with OA remains a formidable task for surgeons. The central goal of OA is closure of fascial defect as early as is clinically feasible without precipitating abdominal compartment syndrome. Historically, techniques such as packing, mesh, and vacuum-assisted closure have been developed to assist temporary abdominal closure, and techniques such as components separation, mesh-mediated traction, bridging fascial defect with permanent synthetic mesh, or biologic mesh have also been attempted to achieve early primary fascial closure, either alone or in combined use...
2016: Gastroenterology Research and Practice
S Acosta, A Wanhainen, M Björck
OBJECTIVES: The aim of this paper was to review the literature on temporary abdominal closure (TAC) after abdominal aortic aneurysm (AAA) repair. METHODS: This was a systematic review of observational studies. A PubMed, EMBASE and Cochrane search from 2007 to July 2015 was performed combining the Medical Subject Headings "aortic aneurysm" and "temporary abdominal closure", "delayed abdominal closure", "open abdomen", "abdominal compartment syndrome", "negative pressure wound therapy", or "vacuum assisted wound closure"...
March 2016: European Journal of Vascular and Endovascular Surgery
Alvaro Jorge-Peñas, Alicia Izquierdo-Alvarez, Rocio Aguilar-Cuenca, Miguel Vicente-Manzanares, José Manuel Garcia-Aznar, Hans Van Oosterwyck, Elena M de-Juan-Pardo, Carlos Ortiz-de-Solorzano, Arrate Muñoz-Barrutia
Traction Force Microscopy (TFM) is a widespread method used to recover cellular tractions from the deformation that they cause in their surrounding substrate. Particle Image Velocimetry (PIV) is commonly used to quantify the substrate's deformations, due to its simplicity and efficiency. However, PIV relies on a block-matching scheme that easily underestimates the deformations. This is especially relevant in the case of large, locally non-uniform deformations as those usually found in the vicinity of a cell's adhesions to the substrate...
2015: PloS One
A E Sharrock, T Barker, H M Yuen, R Rickard, N Tai
INTRODUCTION: Damage control laparotomy for trauma (DCL) entails immediate control of haemorrhage and contamination, temporary abdominal closure (TAC), a period of physiological stabilisation, then definitive repair of injuries. Although immediate primary fascial closure is desired, fascial retraction and visceral oedema may dictate an alternate approach. Our objectives were to systematically identify and compare methods for restoration of fascial continuity when primary closure is not possible following DCL for trauma, to simplify these into a standardised map, and describe the ideal measures of process and outcome for future studies...
February 2016: Injury
Hao Zeng, Yingfang Liang, Xiyang Wang, Xiongjie Shen, Chengke Luo, Zhengquan Xu, Zheng Liu, Yupeng Zhang
OBJECTIVE: To evaluate the clinical efficacy and feasibility of twenty patients with cervical tubercular spondylitis with kyphosis (CTSK) treated by halo traction, single-segment circumferential instrumented fusion combined anterior debridement, decompression and bone grafting. METHODS: Retrospective review of data on twenty patients who suffered from CTSK admitted to our hospital between January 2007 and December 2012. All of them were performed by halo traction, single-segment circumferential instrumented fusion (anterior titanium plate and posterior pedicle or lateral mass fixation) combined anterior debridement, decompression and titanium mesh cage (TMC) filled with allograft bone particles...
November 2015: Clinical Neurology and Neurosurgery
Faisal Farooque, Anita S W Jacombs, Emmanouel Roussos, John W Read, Anthony N Dardano, Michael Edye, Nabeel Ibrahim
BACKGROUND: Surgical repair of recurrent abdominal incisional hernia(s) can be challenging due to complex operative conditions, intense post-operative pain, potential respiratory compromise and lateral muscle traction predisposing to early recurrence. We report our preliminary results with botulinum toxin A (BTA) injection causing flaccid paralysis (relaxation) of the lateral abdominal wall muscles prior to surgery. METHODS: A prospective pilot study measured the effect of preoperative BTA prior to elective repair of recurrent abdominal hernias...
January 2016: ANZ Journal of Surgery
Lowell T Edgar, James B Hoying, Jeffrey A Weiss
Mechanical interactions during angiogenesis, i.e., traction applied by neovessels to the extracellular matrix and the corresponding deformation, are important regulators of growth and neovascularization. We have previously designed, implemented, and validated a coupled model of angiogenesis in which a discrete microvessel growth model interacts with a continuous finite element mesh through the application of local remodeling sprout stresses (Edgar et al. in Biomech Model Mechanobiol, 2014). However, the initial implementation of this framework does not take matrix density into account when determined these remodeling stresses and is therefore insufficient for the study of angiogenesis within heterogeneous matrix environments such as those found in vivo...
July 2015: Annals of Biomedical Engineering
Yoshiyuki Saito, Keisuke Kubota, Akihiro Okada, Tomoaki Deguchi, Junko Kuroda, Nobuhiro Nitori, Tomohisa Kadomura, Masashi Yoshida, Masaki Kitajima
PURPOSE: We developed a new technique, sutureless mesh fixation, using 2-octyl cyanoacrylate (Dermabond(®), a surgical tissue adhesive) for incisional hernia repair. The objective of this article is to introduce the new technique and to examine whether the technique provides sufficient resistance to abdominal pressure. METHODS: We conducted two tests using a porcine model, a traction experiment and artificial pneumoperitoneum test. In the traction experiment, the adherence properties of Dermabond(®) with mesh and peritoneum were examined using a tissue fragment from a pig...
April 10, 2015: Surgery Today
Masatoku Arai, Shigeki Kushimoto, Shiei Kim, Tomohiko Masuno, Jun Hagiwara, Hiromoto Ishii, Hiroyuki Yokota
Proper management of abdominal compartment syndrome and open abdomen is important for improving the survival of critically ill patients. However, in cases requiring a prolonged period of open abdomen, it is frequently difficult to perform definitive fascial closure due to lateralization of the abdominal musculature. We herein present a novel combined technique for managing open abdomen. A 74-year-old male with diffuse peritonitis was transferred to our department, after which a long period of open abdomen made it difficult to achieve fascial closure...
October 2015: Surgery Today
David Kamensky, Ming-Chen Hsu, Dominik Schillinger, John A Evans, Ankush Aggarwal, Yuri Bazilevs, Michael S Sacks, Thomas J R Hughes
In this paper, we develop a geometrically flexible technique for computational fluid-structure interaction (FSI). The motivating application is the simulation of tri-leaflet bioprosthetic heart valve function over the complete cardiac cycle. Due to the complex motion of the heart valve leaflets, the fluid domain undergoes large deformations, including changes of topology. The proposed method directly analyzes a spline-based surface representation of the structure by immersing it into a non-boundary-fitted discretization of the surrounding fluid domain...
February 1, 2015: Computer Methods in Applied Mechanics and Engineering
A C Lord, R Hompes, A Venkatasubramaniam, S Arnold
Management of the open abdomen has advanced significantly in recent years with the increasing use of vacuum assisted closure (VAC) techniques leading to increased rates of fascial closure. We present the case of a patient who suffered two complete abdominal wall dehiscences after an elective laparotomy, meaning primary closure was no longer possible. She was treated successfully with a VAC system combined with continuous medial traction using a Prolene(®) mesh. This technique has not been described before in the management of patients following wound dehiscence...
January 2015: Annals of the Royal College of Surgeons of England
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