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https://www.readbyqxmd.com/read/28434826/the-accuracy-of-patient-specific-implant-prebented-with-3d-printed-rapid-prototype-model-for-orbital-wall-reconstruction
#1
Young Chul Kim, Woo Shik Jeong, Tae-Kyung Park, Jong Woo Choi, Kyung S Koh, Tae Suk Oh
BACKGROUND: This study evaluated the accuracy of blow out fracture reduction using 3D-printed rapid prototyping (RP) skull modeling. PATIENTS AND METHODS: Retrospective review was performed for 82 patients who underwent post-traumatic orbital wall fracture reduction between 2012 and 2014. Patients were divided into two groups according to the use of 3D-printed RP skull model reproduced by mirroring technique, onto which a titanium mesh was anatomically molded. Using computed tomographic scans, the areas of pre- and post-operative orbital wall defect, the layout angles of the titanium mesh, and the gap lengths between the implant and fracture margin were compared between the two groups...
March 27, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28431204/factors-that-affect-outcomes-of-prolapse-repair-using-single-incision-vaginal-mesh-procedures
#2
Hsiao-Yun Hsieh, Ching-Pei Tsai, Chih-Ku Liu, Pao-Sheng Shen, Yao-Ching Hung, Man-Jung Hung
AIMS: Single-incision vaginal mesh (SIVM) procedures for pelvic organ prolapse (POP) differed in mesh fabrication and implantation that may affect treatment outcomes. We aim to evaluate and compare the safety and effectiveness of two SIVM procedures, and explore factors that may have associations with surgical effectiveness. METHODS: Our data of using two SIVM procedures for a total (anterior and posterior) vaginal mesh repair were studied. Patients who had ≧stage 2 POP and underwent either Elevate (n = 85) using anchored, lightweight meshes or Prosima procedures (n = 95) using non-anchored, original meshes were assessed...
April 21, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28419885/registry-of-implants-for-the-reconstruction-of-pelvic-floor-in-males-and-females-a-feasibility-case-series
#3
Dimitri Barski, Holger Gerullis, Thorsten Ecke, Jennifer Kranz, Laila Schneidewind, Nadine Leistner, Fabian Queissert, Sandra Mühlstädt, Markus Grabbert, Rana Tahbaz, Alexandre Egon Pelzer, Ralf Joukhadar, Uwe Klinge, Mihaly Boros, Werner Bader, Gert Naumann, Frank Puppe, Thomas Otto
INTRODUCTION: Most aspects of implant-assisted reconstruction of pelvic floor in males and females are under debate and the research is not standardized. Registries are supposed to shed light to the indications, surgical techniques and material properties and to establish a standardized evaluation. METHODS: A working group was formed to create an online platform for registration and outcome measurement of implant-assisted operations for pelvic organ prolapse (POP) and female and male stress urinary incontinence (SUI)...
April 15, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28419752/surface-orientation-effects-on-bending-properties-of-surgical-mesh-are-independent-of-tensile-properties
#4
David D Simon, Sharon M Andrews, Rebecca Robinson-Zeigler, Thelma Valdes, Terry O Woods
INTRODUCTION: Current mechanical testing of surgical mesh focuses primarily on tensile properties even though implanted devices are not subjected to pure tensile loads. Our objective was to determine the flexural (bending) properties of surgical mesh and determine if they correlate with mesh tensile properties. METHODS: The flexural rigidity values of 11 different surgical mesh designs were determined along three textile directions (machine, cross-machine, and 45° to machine; n = 5 for each) using ASTM D1388-14 while tracking surface orientation...
April 17, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28413126/consensus-statement-of-the-european-urology-association-and-the-european-urogynaecological-association-on-the-use-of-implanted-materials-for-treating-pelvic-organ-prolapse-and-stress-urinary-incontinence
#5
REVIEW
Christopher R Chapple, Francisco Cruz, Xavier Deffieux, Alfredo L Milani, Salvador Arlandis, Walter Artibani, Ricarda M Bauer, Fiona Burkhard, Linda Cardozo, David Castro-Diaz, Jean Nicolas Cornu, Jan Deprest, Alfons Gunnemann, Maria Gyhagen, John Heesakkers, Heinz Koelbl, Sheila MacNeil, Gert Naumann, Jan-Paul W R Roovers, Stefano Salvatore, Karl-Dietrich Sievert, Tufan Tarcan, Frank Van der Aa, Francesco Montorsi, Manfred Wirth, Mohamed Abdel-Fattah
CONTEXT: Surgical nonautologous meshes have been used for several decades to repair abdominal wall herniae. Implantable materials have been adopted for the treatment of female and male stress urinary incontinence (SUI) and female pelvic organ prolapse (POP). OBJECTIVE: A consensus review of existing data based on published meta-analyses and reviews. EVIDENCE ACQUISITION: This document summarises the deliberations of a consensus group meeting convened by the European Association of Urology (EAU) and the European Urogynecological Association, to explore the current evidence relating to the use of polypropylene (PP) materials used for the treatment of SUI and POP, with reference to the 2016 EAU guidelines (European Association of Urology 2016), the European Commission's SCENIHR report on the use of surgical meshes (SCENIHR 2015), other available high-quality evidence, guidelines, and national recommendations...
April 13, 2017: European Urology
https://www.readbyqxmd.com/read/28407019/comparison-between-titanium-mesh-and-autogenous-iliac-bone-graft-to-restore-vertebral-height-through-posterior-approach-for-the-treatment-of-thoracic-and-lumbar-spinal-tuberculosis
#6
COMPARATIVE STUDY
Yongjian Gao, Yunsheng Ou, Qianxing Deng, Bin He, Xing Du, Jianxiao Li
OBJECT: To compare the clinical efficacy of titanium mesh cages and autogenous iliac bone graft to restore vertebral height through posterior approach in patients with thoracic and lumbar spinal tuberculosis. METHOD: 59 patients with spinal tuberculosis underwent interbody fusion and internal fixation through posterior approach in our department from January 2011 to December 2013. In group A, 34 patients obtained titanium mesh for the reconstruction of vertebral height, among them 25 patients (group A1) suffered from single-segment spinal tuberculosis, and 9 patients, (group A2) had multi-segment spinal tuberculosis...
2017: PloS One
https://www.readbyqxmd.com/read/28398930/management-of-mesh-and-graft-complications-in-gynecologic-surgery
#7
(no author information available yet)
This document focuses on the management of complications related to mesh used to correct stress urinary incontinence or pelvic organ prolapse. Persistent vaginal bleeding, vaginal discharge, or recurrent urinary tract infections after mesh placement should prompt an examination and possible further evaluation for exposure or erosion. A careful history and physical examination is essential in the diagnosis of mesh and graft complications. A clear understanding of the location and extent of mesh placement, as well as the patient's symptoms and therapy goals, are necessary to plan treatment approaches...
April 10, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28388735/a-novel-anterior-trans-pedicular-screw-artificial-vertebral-body-system-for-lower-cervical-spine-fixation-a-finite-element-study
#8
Weidong Wu, Chun Chen, Jinpei Ning, Pei-Dong Sun, Jinyuan Zhang, Changfu Wu, Zhenyu Bi, Jihong Fan, Xianliang Lai, Jun Ouyang
Objective A finite element model was used to compare the biomechanical properties of a novel anterior trans-pedicular screw artificial vertebral body system (AVBS) with a conventional anterior screw plate system (ASPS) for fixation in the lower cervical spine. Methods A model of the intact cervical spine (C3-C7) was established. AVBS or ASPS constructs were implanted between C4 and C6. The models were loaded in three-dimensional motion. The Von Mises stress distribution in the internal fixators was evaluated, as well as the range of motion (ROM) and facet joint force...
April 7, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28387996/porosity-and-tissue-integration-of-elastic-mesh-implants-evaluated-in-vitro-and-in-vivo
#9
Alexander Ciritsis, Andreas Horbach, Manfred Staat, Christiane K Kuhl, Nils Andreas Kraemer
PURPOSE: In vivo, a loss of mesh porosity triggers scar tissue formation and restricts functionality. The purpose of this study was to evaluate the properties and configuration changes as mesh deformation and mesh shrinkage of a soft mesh implant compared with a conventional stiff mesh implant in vitro and in a porcine model. MATERIAL AND METHODS: Tensile tests and digital image correlation were used to determine the textile porosity for both mesh types in vitro...
April 7, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28385111/negative-pressure-wound-therapy-for-treatment-of-mesh-infection-after-abdominal-surgery-long-term-results-and-patient-reported-outcome
#10
S Nobaek, P Rogmark, U Petersson
BACKGROUND AND AIMS: Treatment of synthetic mesh infections has previously often resulted in mesh explantation. Negative pressure wound therapy has been used in these situations with encouraging results. The aims of this study were to evaluate wound healing, mesh preservation, and patient-reported outcome after negative pressure wound therapy of mesh infections. MATERIAL AND METHODS: Medical records of patients treated with negative pressure wound therapy for mesh infection and age-matched mesh-operated controls without postoperative complications were scrutinized in a retrospective study...
April 1, 2017: Scandinavian Journal of Surgery: SJS
https://www.readbyqxmd.com/read/28384461/implant-placement-is-more-accurate-using-dynamic-navigation
#11
Michael S Block, Robert W Emery, Daniel R Cullum, Ali Sheikh
PURPOSE: The purpose of this prospective study was to measure and compare the accuracy and precision of dynamic navigation with freehand (FH) implant fixture placement. The authors hypothesized that the evaluated dynamic navigation system would have high accuracy and precision and would be superior to FH methods. MATERIALS AND METHODS: The authors designed and implemented a prospective cohort study and enrolled patients who had implants placed from December 2014 through December 2016...
March 14, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28377470/mesh-implant-review-is-a-betrayal-say-campaigners
#12
Bryan Christie
No abstract text is available yet for this article.
April 4, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28377284/outcomes-following-polyetheretherketone-peek-cranioplasty-systematic-review-and-meta-analysis
#13
REVIEW
Maria Punchak, Lawrance K Chung, Carlito Lagman, Timothy T Bui, Jorge Lazareff, Kameron Rezzadeh, Reza Jarrahy, Isaac Yang
Polyetheretherketone (PEEK) has been used in cranioplasty since the early 2000s. However, there remains limited data that compares its long-term complication rate to autologous grafts and titanium mesh implants. To compare complication and implant failure rates after PEEK, autologous and titanium mesh cranioplasties, the authors of this study conducted a systematic review using the PubMed database. Studies that contained outcome data on complication rates of PEEK cranioplasty patients and studies that compared outcomes of patients who underwent PEEK cranioplasties versus other materials were included in the meta-analysis...
April 1, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28371358/hearing-optimization-in-neurofibromatosis-type-2-a-systematic-review
#14
Simon Kingsley Wickham Lloyd, Andrew Thomas King, Scott Alexander Rutherford, Charlotte Lucy Hammerbeck-Ward, Simon Richard MacKenzie Freeman, Deborah Jane Mawman, Martin O'Driscoll, Dafydd Gareth Evans
BACKGROUND: It is common for patients with Neurofibromatosis type 2 to develop bilateral profound hearing loss hearing loss and this is one of the main determinants of quality of life in this patient group. OBJECTIVES: The aim of this systematic review was to review the current literature regarding hearing outcomes of treatments for vestibular schwannomas in neurofibromatosis type 2 including conservative and medical management, radiotherapy, hearing preservation surgery and auditory implantation in order to determine the most effective way of preserving or rehabilitating hearing Search Strategy: A MESH search in PubMed using search terms (("Neurofibromatosis 2"[Mesh]) AND "Neuroma, Acoustic"[Mesh]) AND "Hearing Loss"[Mesh] was performed...
April 1, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28368043/impact-of-cell-composition-and-geometry-on-human-induced-pluripotent-stem-cells-derived-engineered-cardiac-tissue
#15
Takeichiro Nakane, Hidetoshi Masumoto, Joseph P Tinney, Fangping Yuan, William J Kowalski, Fei Ye, Amanda J LeBlanc, Ryuzo Sakata, Jun K Yamashita, Bradley B Keller
The current study describes a scalable, porous large-format engineered cardiac tissue (LF-ECT) composed of human induced pluripotent stem cells (hiPSCs) derived multiple lineage cardiac cells with varied 3D geometries and cell densities developed towards the goal of scale-up for large animal pre-clinical studies. We explored multiple 15 × 15 mm ECT geometries using molds with rectangular internal staggered posts (mesh, ME), without posts (plain sheet, PS), or long parallel posts (multiple linear bundles, ML) and a gel matrix containing hiPSC-derived cardiomyocytes, endothelial, and vascular mural cells matured in vitro for 14 days...
April 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28359872/microbial-colonization-at-the-implant-abutment-interface-and-its-possible-influence-on-periimplantitis-a-systematic-review-and-meta-analysis
#16
REVIEW
Marco Tallarico, Luigi Canullo, Martina Caneva, Mutlu Özcan
PURPOSE: The aim of this systematic review and meta-analysis was to evaluate the microbial colonization at the implant-abutment interfaces (IAI) on bone-level implants and to identify possible association with peri-implant conditions. STUDY SELECTION: The focus question aimed to answer whether two-piece osseointegrated implants, in function for at least 1 year, in human, relate to higher bacterial count and the onset of periimplantitis, compared to healthy peri-implant conditions...
March 27, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28350650/direct-to-implant-breast-reconstruction-without-the-use-of-an-acellular-dermal-matrix-is-cost-effective-and-oncologically-safe
#17
L Charles J Serrurier, Sarah Rayne, Marisse Venter, Carol-Ann Benn
BACKGROUND: Direct-to-implant breast reconstruction is a predictable, reliable, and cost-effective reconstruction. Most units performing direct-to-implant reconstructions recommend the use of an acellular dermal matrix or a mesh to reinforce the lower pole of the breast reconstruction. METHODS: Two hundred seventy-two consecutive patients with 488 immediate direct-to-implant breast reconstructions performed in a 34-month period are included in this group. Mean follow-up of this group is 35 months...
April 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28349130/design-strategies-and-applications-of-biomaterials-and-devices-for-hernia-repair
#18
Surge Kalaba, Ethan Gerhard, Joshua S Winder, Eric M Pauli, Randy S Haluck, Jian Yang
Hernia repair is one of the most commonly performed surgical procedures worldwide, with a multi-billion dollar global market. Implant design remains a critical challenge for the successful repair and prevention of recurrent hernias, and despite significant progress, there is no ideal mesh for every surgery. This review summarizes the evolution of prostheses design toward successful hernia repair beginning with a description of the anatomy of the disease and the classifications of hernias. Next, the major milestones in implant design are discussed...
September 2016: Bioactive Materials
https://www.readbyqxmd.com/read/28333822/committee-opinion-no-694-management-of-mesh-and-graft-complications-in-gynecologic-surgery
#19
(no author information available yet)
This document focuses on the management of complications related to mesh used to correct stress urinary incontinence or pelvic organ prolapse. Persistent vaginal bleeding, vaginal discharge, or recurrent urinary tract infections after mesh placement should prompt an examination and possible further evaluation for exposure or erosion. A careful history and physical examination is essential in the diagnosis of mesh and graft complications. A clear understanding of the location and extent of mesh placement, as well as the patient's symptoms and therapy goals, are necessary to plan treatment approaches...
April 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28333814/committee-opinion-no-694-summary-management-of-mesh-and-graft-complications-in-gynecologic-surgery
#20
(no author information available yet)
This document focuses on the management of complications related to mesh used to correct stress urinary incontinence or pelvic organ prolapse. Persistent vaginal bleeding, vaginal discharge, or recurrent urinary tract infections after mesh placement should prompt an examination and possible further evaluation for exposure or erosion. A careful history and physical examination is essential in the diagnosis of mesh and graft complications. A clear understanding of the location and extent of mesh placement, as well as the patient's symptoms and therapy goals, are necessary to plan treatment approaches...
April 2017: Obstetrics and Gynecology
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