Статті в журналах: "Mesh repairing"

1

Attene, Marco, Marcel Campen, and Leif Kobbelt. "Polygon mesh repairing." ACM Computing Surveys 45, no. 2 (February 2013): 1–33. http://dx.doi.org/10.1145/2431211.2431214.

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2

McLaurin, David, David Marcum, Mike Remotigue, and Eric Blades. "Repairing unstructured triangular mesh intersections." International Journal for Numerical Methods in Engineering 93, no. 3 (June 27, 2012): 266–75. http://dx.doi.org/10.1002/nme.4385.

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3

Bronsart, Robert. "Automatic Pre-Mesh CAD Data Repairing." International Journal of Mechanical Engineering and Applications 1, no. 1 (2013): 1. http://dx.doi.org/10.11648/j.ijmea.20130101.11.

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4

Zhong, Deyun, Benyu Li, Tiandong Shi, Zhaopeng Li, Liguan Wang, and Lin Bi. "Repair of Voids in Multi-Labeled Triangular Mesh." Applied Sciences 11, no. 19 (October 6, 2021): 9275. http://dx.doi.org/10.3390/app11199275.

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In this paper, we propose a novel mesh repairing method for repairing voids from several meshes to ensure a desired topological correctness. The input to our method is several closed and manifold meshes without labels. The basic idea of the method is to search for and repair voids based on a multi-labeled mesh data structure and the idea of graph theory. We propose the judgment rules of voids between the input meshes and the method of void repairing based on the specified model priorities. It consists of three steps: (a) converting the input meshes into a multi-labeled mesh; (b) searching for quasi-voids using the breadth-first searching algorithm and determining true voids via the judgment rules of voids; (c) repairing voids by modifying mesh labels. The method can repair the voids accurately and only few invalid triangular facets are removed. In general, the method can repair meshes with one hundred thousand facets in approximately one second on very modest hardware. Moreover, it can be easily extended to process large-scale polygon models with millions of polygons. The experimental results of several data sets show the reliability and performance of the void repairing method based on the multi-labeled triangular mesh.

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5

Zhang, Jingjing, Jianhong Long, Xinghua Yang, Shaorong Lei, Muzhang Xiao, Pengju Fan, Min Qi, and Wuyuan Tan. "Customized Titanium Mesh for Repairing Cranial Defects." Journal of Craniofacial Surgery 26, no. 8 (November 2015): e758-e761. http://dx.doi.org/10.1097/scs.0000000000002179.

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6

Wang, Xiao, Na Lei, and Zhongxuan Luo. "An Automatic Surface-Based Mesh Repairing Algorithm." Journal of Computer-Aided Design & Computer Graphics 34, no. 09 (September 1, 2022): 1391–401. http://dx.doi.org/10.3724/sp.j.1089.2022.19179.

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7

Li, Weiguo, Wenhua Ye, and Wenliang Chen. "Algorithms for mesh repairing to represent automobile parts." Journal of Modern Transportation 19, no. 4 (December 2011): 252–60. http://dx.doi.org/10.1007/bf03325766.

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8

Lu, Yao, Sheng-nan Dong, Yan-chun Chen, Pei-hua Zhang, and Xiao-wen Tong. "Fabrication, characterization and application of polypropylene macroporous mesh for repairing pelvic floor defects." Textile Research Journal 87, no. 7 (March 22, 2016): 878–88. http://dx.doi.org/10.1177/0040517516639833.

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The application of mesh to reconstruct pelvic floors is considered a state-of-the-art method for the treatment of pelvic floor dysfunction. Polypropylene (PP) is the most frequently used synthetic graft material in gynecology departments due to its good mechanical property and non-degradability. Pelvic repairing meshes are required to have good biocompatibility, stability and low shrinkage with sufficient softness. Meshes should also adhere to surrounding tissues to support pelvic organs after implantation. This work designed two kinds of lightweight PP macroporous meshes with different structures. The meshes were designed based on analyzing properties of Gynemesh® PS, which is a common pelvic repairing mesh in clinical use. The requirements of mesh design were as follows: mesh weight <45 g/m2, pore size >75 µm, porosity >60%. Two kinds of meshes were fabricated according to design requirements and named the S1 mesh and S2 mesh. Several structural parameters, including thickness, weight, pore size, porosity and mechanical properties, including bursting strength, tensile strength, suture pulling off force and flexibility, were tested and analyzed. S1 mesh and S2 mesh were then implanted in the onlay position of rabbits for 90 days. The biocompatibility was evaluated through operation situation, postoperative recovery, mesh adhesion, shrinkage, histological evaluation of mesh and surrounding tissues. The results revealed that the two kinds of meshes were both beneficial to promote tissue growth; most animals recovered well. However, S1 mesh had greater shrinkage, while there existed one case of infection in the S2 mesh group because of mesh folding.

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9

Oh, Sahuck. "A new triangular mesh repairing method using a mesh distortion energy minimization-based mesh flattening method." Advances in Engineering Software 131 (May 2019): 48–59. http://dx.doi.org/10.1016/j.advengsoft.2019.03.004.

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10

YAO, Yuan. "Missing Entity Hole Repairing Algorithm of 3D Closed Triangle Mesh." Journal of Mechanical Engineering 45, no. 06 (2009): 154. http://dx.doi.org/10.3901/jme.2009.06.154.

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11

Cui Wen, 崔文, 陈辉 Chen Hui та 刘万泉 Liu Wanquan. "激光三角网格点云孔洞曲面修补方法". Laser & Optoelectronics Progress 58, № 20 (2021): 2014002. http://dx.doi.org/10.3788/lop202158.2014002.

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12

Luo, JianMing, Bin Liu, ZeYu Xie, Shan Ding, ZeRui Zhuang, Lan Lin, YanChun Guo, Hui Chen, and Xiaojun Yu. "Comparison of manually shaped and computer-shaped titanium mesh for repairing large frontotemporoparietal skull defects after traumatic brain injury." Neurosurgical Focus 33, no. 1 (July 2012): E13. http://dx.doi.org/10.3171/2012.2.focus129.

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Object The object of this study was to compare the effects and complications of manual and computer-aided shaping of titanium meshes for repairing large frontotemporoparietal skull defects following traumatic brain injury. Methods From March 2005 to June 2011, 161 patients with frontotemporoparietal skull defects were observed. Patients were divided into 2 groups according to the repair materials used for cranioplasty: 83 cases used computer-aided shaping for the titanium mesh, whereas the remaining 78 cases used a manually shaped titanium mesh. The advantages and disadvantages of the 2 methods were compared. Results No case of titanium mesh loosening occurred in either group. Subcutaneous fluid collection, titanium mesh tilt, and temporal muscle pain were the most common complications. In the manually shaped group, there were 14 cases of effusion, 10 cases of titanium mesh tilt, and 15 cases of temporal muscle pain. In the computer-aided group, there were 6 cases of effusion, 3 cases of titanium mesh tilt, and 6 cases of temporal muscle pain. The differences were significant between the 2 groups (p < 0.05). Other common complications were scalp infection, exposure of titanium mesh, epidural hematoma, and seizures. In the computer-aided group, the operative time decreased (p < 0.01), the number of screws used was reduced (p < 0.01), and the satisfaction of patients was significantly increased (p < 0.05). Conclusions Computer-aided shaping of titanium mesh for repairing large frontotemporoparietal skull defects decreases postoperative complications and the operative duration, reduces the number of screws used, increases the satisfaction of patients, and restores the appearance of the patient's head, making it an ideal choice for cranioplasty.

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13

Gupta, Nidhi, Amit Jain, and Parshant Grover. "Multiple Small Bowel Fistulae Secondary to Mesh Erosion: A Rare Presentation." SAS Journal of Surgery 8, no. 12 (December 28, 2022): 810–12. http://dx.doi.org/10.36347/sasjs.2022.v08i12.015.

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Synthetic mesh placement has proved to be a boon for repairing different types of hernias and also vaginal vault prolapsed. However as with all procedures, there are certain risks involved. Mesh migration and erosion in bowel is a rarely reported complication of using synthetic mesh. We report an elderly sixty two year old woman presented with abdominal pain and incisional hernia after being previously operated for abdominal hysterectomy and mesh sarcocolopexy for subsequent vault prolapse ten months ago. Patient planned for open mesh hernioplasty but was intra operatively found to have multiple ileal fistulae secondary to mesh erosion. It is important to consider the possibility of mesh erosion or migration in all patients who present with post synthetic mesh procedures- rare as the incidence may be. Use of specific mesh and suture materials is as important as technique in the primary surgery to prevent such a complication in the first place.

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14

Izmailov, G. A., R. R. Garaev, and L. M. Sadykova. "Device for obtaining mesh skin flaps." Kazan medical journal 70, no. 6 (December 15, 1989): 466–67. http://dx.doi.org/10.17816/kazmj101760.

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When repairing skin with extensive skin defects, devices are usually used to obtain mesh grafts from skin flaps with different expansion coefficients. They consist of a cutting element, a supporting roller and a plate. As a cutting element they use special interchangeable knives, a roller with a continuous thread or safety razor blades installed in large numbers (from 50 to 250) perpendicularly to the axis of the rotating roller or to the supporting plate. The main disadvantage of these devices is the difficulty of blanking and changing the cutting elements, which is dangerous and requires not only considerable time, but also a certain qualification of medical personnel.

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15

Elkasapy, Abdelhaleem, Mohamed Shokry, Adel Alakraa, and Olla Khalifa. "Prosthetic polyester-based hybrid mesh for repairing ofperineal hernia in dogs." Open Veterinary Journal 12, no. 1 (2022): 124. http://dx.doi.org/10.5455/ovj.2022.v12.i1.15.

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16

Shah-Heydari, Shahram, and Oliver Yang. "Heuristic algorithms for designing self-repairing protection trees in mesh networks." Computer Networks 53, no. 14 (September 2009): 2537–51. http://dx.doi.org/10.1016/j.comnet.2009.05.009.

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17

Awang, Noorehan, Rahmita Wirza Rahmat, Puteri Suhaiza Sulaiman, Azmi Jaafar, and Ng Seng Beng. "Filling Sharp Features on Corner of Triangular Mesh by using Enhanced Advancing Front Mesh (EAFM) method." International Journal of Engineering & Technology 7, no. 2.14 (April 6, 2018): 114. http://dx.doi.org/10.14419/ijet.v7i2.14.11466.

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Repairing an incomplete polygon mesh constitutes a primary difficulty in 3D model construction, especially in the computer graphics area. The objective of hole-filling methods is to keep surfaces smoothly and continually filled at hole boundaries while conforming with the shapes. The Advancing Front Mesh (AFM) method was normally used to fill simple holes. However, there has not been much implementation of AFM in handling sharp features. In this paper, we use an AFM method to fill a holes on sharp features. The Enhanced Advancing Front Mesh (EAFM) method was introduced when there was a conflict during triangle creation. The results of the study show that the presented method can effectively improve the AFM method, while preserving the geometric features and details of the original mesh.

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18

Lu, Yao, and Pei-hua Zhang. "Fabrication and evaluation of a warp knitted polypropylene/polylactic acid composite mesh for pelvic floor repair." Textile Research Journal 88, no. 10 (March 20, 2017): 1099–111. http://dx.doi.org/10.1177/0040517517697643.

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Surgical mesh for repairing pelvic defects is expected to be stiff to improve surgical convenience, as well as be soft and flexible to relieve foreign body sensation. This paper aims to develop a new composite mesh (PA) consisted of polypropylene (PP) monofilaments and polylactic acid (PLA) monofilaments according to this expectation. The PA mesh was designed by the two-bar warp knitting technique to have a knitted structure with light weight (19.9 g/m2) and high porosity (porosity). A commercial lightweight PP mesh—Surgimesh® Prolapse mesh—was used as the control group. The mechanical property, in vitro degradation, and in vivo biocompatibility were then measured. The results revealed that the addition of stiffer, stronger PLA monofilaments did not significantly strengthen PA mesh, but made the mesh stiff. The warp knitted structure, porosity and pore size are vital factors affecting mesh mechanical properties. PLA monofilaments in PA mesh were degraded in 74 weeks, with a maximum weight loss reaching 62.4%. PA mesh was demonstrated to have better biocompatibility with evidences of lower shrinkage (13.1%) and faster tissue growth speed.

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19

Pérez, Emiliano, Santiago Salamanca, Pilar Merchán, and Antonio Adán. "A comparison of hole-filling methods in 3D." International Journal of Applied Mathematics and Computer Science 26, no. 4 (December 1, 2016): 885–903. http://dx.doi.org/10.1515/amcs-2016-0063.

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Abstract This paper presents a review of the most relevant current techniques that deal with hole-filling in 3D models. Contrary to earlier reports, which approach mesh repairing in a sparse and global manner, the objective of this review is twofold. First, a specific and comprehensive review of hole-filling techniques (as a relevant part in the field of mesh repairing) is carried out. We present a brief summary of each technique with attention paid to its algorithmic essence, main contributions and limitations. Second, a solid comparison between 34 methods is established. To do this, we define 19 possible meaningful features and properties that can be found in a generic hole-filling process. Then, we use these features to assess the virtues and deficiencies of the method and to build comparative tables. The purpose of this review is to make a comparative hole-filling state-of-the-art available to researchers, showing pros and cons in a common framework.

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20

Li, Tian, Si Yuan Cheng, Xue Peng Wang, and Xue Rong Yang. "Repairing Incomplete Measured Data for Reverse Engineering with Anatomical CAD." Applied Mechanics and Materials 271-272 (December 2012): 1087–92. http://dx.doi.org/10.4028/www.scientific.net/amm.271-272.1087.

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The repairing of incomplete measured data caused by the inaccessibility or invisibility of some portions of the product surface for measure tools plays an important role in Reverse Engineering. The fundamental principles of Reverse Engineering and Anatomical CAD are introduced. The main functional advantages of 3-matic package integrated with Anatomical CAD are presented. There is a big difference in the working flows between Anatomical CAD and traditional CAD packages in the process of RE data repairing. In this paper, we propose a new method of data repairing based on Anatomical CAD. The point cloud of the stamping part obtained by a Potable CMM is repaired successfully by 3-matic, which reduces preparation times by working with a triangular mesh directly, and saves the turn-around time and works more effectively.

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21

Lu, Yao, and Pei-hua Zhang. "Comparison of polylactic acid/polycaprolactone membrane-coated composite meshes for repairing pelvic floor defects fabricated by two processing methods." Textile Research Journal 87, no. 12 (June 24, 2016): 1494–508. http://dx.doi.org/10.1177/0040517516654112.

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Applying mesh to reconstruct the pelvic floor is a new surgery method developed in recent years. The composite mesh property is expected to reach perfection by taking advantage of absorbable material and non-absorbable material. This work adopts the dipping method and the electrospinning method to produce polylactic acid/polycaprolactone (weight ratio = 7/3) membrane-coated composite meshes (D-PP1, D-PP2, E-PP1, E-PP2). The effect of coating methods on the mesh structure, such as thickness and weight, is first measured. The electrospinning membrane is tested for only around 3% of the mesh weight, while the dipping membrane is tested for more than 30%. The composite meshes then experience mechanical testing, including tensile strength, bursting strength and flexibility. The coating process is demonstrated to increase elongation at the break in tensile testing: E-PP1 (76.7%) > D-PP1(60%) > PP-1(41.2%); D-PP2 (143.3%) > E-PP2(112.3%) > PP-2(56.7%). It also strengthens the bursting strength: D-PP1 (179.8 N) > E-PP1(157.3 N) > PP-1(149.8 N); D-PP2 (183 N) > E-PP2(174.8 N) > PP-2(154.3 N). However, the dipping method shows weaken composite mesh flexibility, with larger initial modulus for D-PP1 and D-PP2 meshes. Hydrophilicity is represented by the water contact angle and absorption rate. Even though the result of the hydrophobic surface on the composite mesh is reported to easily cause shrinkage, the polypropylene mesh base in this study is considered to prevent this phenomenon. E-PP1 mesh degrades in 20 weeks; D-PP2 mesh degrades in 34 weeks with an induction period of 20 weeks. The optical density value tested, measuring biocompatibility, proves the non-toxicity of both E-PP1 and D-PP2 meshes.

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d'Acampora, Armando José, Fabrícia Slomski Joli, and Ricardo Tramonte. "Expanded polytetrafluoroethylene and polypropylene in the repairing of abdominal wall defects in Wistar rats: comparative study." Acta Cirurgica Brasileira 21, no. 6 (December 2006): 409–15. http://dx.doi.org/10.1590/s0102-86502006000600010.

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PURPOSE: To compare the use of polypropylene and PTFE meshes in the treatment of incisional hernias made experimentally on Wistar rats. METHODS: The experiment used 24 Wistar rats divided into three cohorts: C-A (ressection of a segment of abdominal wall), E-A (ressection and placement of PTFEe mesh), E-B (resection and placement of polypropylene mesh). After 28 days, the mesh and the surrounding tissue were removed and submitted to macroscopic analysis (assessment of the abdominal wall for presence of abscess in the surgical wound and/or skin necrosis, and adhesions) as well as microscopic analysis (presence of fibrosis, necrosis and abscess, counting of macrophages, mononuclears and polymorphonuclears). RESULTS: Adhesions and abscesses in the surgical wound were observed more commonly associated to the group treated with PTFEe. The size of the fibrous tissue was greater in the group treated with polypropylene. Cohort E-A showed PTFEe mesh enveloped by organized fine connective tissue. No groups presented necrosis on the site of the insertion. The highest mononuclear inflammatory reaction occurred in association to PTFEe when compared to the control group, but the findings for the polypropylene mesh were also significant when compared to the control group. In the analysis of the results obtained for cohorts E-A and E-B, a minimal occurrence of polymorphonuclears was noticed in both groups, which indicates low tissue reactivity to both materials used in the present experiment. CONCLUSION: Even with epithelization and proliferation of connective tissue, anchorage between PTFEe and abdominal wall is insufficient, which can result in reherniations.

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23

Yamamoto, Kayoko, Seiji Yamaguchi, Tomiharu Matsushita, Shigeo Mori, Azumi Hirata, Nahoko Kato-Kogoe, Hiroyuki Nakano, et al. "Osteogenic capacity of mixed-acid and heat-treated titanium mesh prepared by a selective laser melting technique." RSC Advances 8, no. 46 (2018): 26069–77. http://dx.doi.org/10.1039/c8ra04193h.

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24

Ek, Marion, Daniel Altman, Jonas Gunnarsson, Christian Falconer, and Gunilla Tegerstedt. "Clinical efficacy of a trocar-guided mesh kit for repairing lateral defects." International Urogynecology Journal 24, no. 2 (June 16, 2012): 249–54. http://dx.doi.org/10.1007/s00192-012-1833-9.

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25

Birbilis, Th, E. Theodoropoulou, Ag Birbili, S. Dimas, and V. Leutsakos. "A Preliminary Report on the Use of Relon Mesh in the Repair of Eventrations with Large Parietal Defects. An Experimental Study in Rats." Journal of International Medical Research 25, no. 3 (May 1997): 135–40. http://dx.doi.org/10.1177/030006059702500303.

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This experimental study in rats was designed to investigate the tolerability and the mode of healing when commercial relon mesh is used in the repair of large abdominal-wall defects. A defect was created to simulate anatomical derangement of the abdominal wall and a surgical correction was performed using relon mesh. The mesh was implanted intraperitoneally in 18 Wistar albino rats. The animals were killed under anaesthesia 4, 6, 8, 12, 15 or 30 days later and the intra-abdominal viscera were examined macroscopically for adhesions and other evidence of inflammatory reactions. Skin healing usually occurred within 7 — 8 days of surgery. Microscopic studies were used to confirm the gross findings and showed that maturation of granulation tissue, fibrocyte invasion with encapsulation of the mesh and the appearance of newly formed vessels occurred 2 weeks after surgery. Within 4 weeks a strong layer of connective tissue was present. The relon mesh was tolerated well. These results indicate that the use of relon mesh may provide a cheap alternative means of repairing large abdominal-wall defects.

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26

Qian, Gui Ping, and Ruo Feng Tong. "Automatical Reconstruction of Deficient CAD Model." Advanced Materials Research 186 (January 2011): 241–45. http://dx.doi.org/10.4028/www.scientific.net/amr.186.241.

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This paper presents a new CAD model reconstruction method for finite element mesh analysis. It has been accepted by many researchers that modification of a model is often a necessity as a precursor to effective mesh generation. We design an IGES surface model transformation and repairing method based on trimmed B-spline surface patches, and give an algorithm for reconstructing Brep model from surface model without correct topology information. In processing Brep model for numerical simulation, the critical issues involves the rectification of geometrical and topological errors, clearing up sharp edges and cracks, geometry healing will be emphasized. Our model-healing algorithm essentially simplifies the problems of the imperfect models and allows one to deal with simple surface model rather than complex surface representations for finite element mesh.

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27

Zieliński, P. "Effectiveness of the steel mesh track in repairing asphalt pavements in Małopolska region." IOP Conference Series: Materials Science and Engineering 356 (May 2018): 012017. http://dx.doi.org/10.1088/1757-899x/356/1/012017.

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Deng, Yuan, Weiwei Tang, and Zhengkang Li. "Repairing a Facial Cleft by Polyether–Ether–Ketone Implant Combined With Titanium Mesh." Journal of Craniofacial Surgery 29, no. 6 (September 2018): e582-e585. http://dx.doi.org/10.1097/scs.0000000000004599.

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Adamoudis, Lazaros D., Georgia Koini, and Ioannis K. Nikolos. "Heuristic repairing operators for 3D tetrahedral mesh generation using the advancing-front technique." Advances in Engineering Software 54 (December 2012): 49–62. http://dx.doi.org/10.1016/j.advengsoft.2012.08.007.

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30

Zhang, Shao Wen, Lu Lu Zhang, and Qi Zhang. "Innovation of Old Buildings Repairing and Vierendeel Steel Roof Truss." Applied Mechanics and Materials 501-504 (January 2014): 1043–47. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.1043.

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The old building was saved, protected and transformed with the original technique and measure. After the structure reliability of old building passed to test and evaluate, the architectural function was redesigned, old structure was reinforced and repaired. The structural integrity was strengthened using cement mortar and steel mesh to reinforce inner walls, adding cross walls, enclosure beam and seismic angle-steel. Without change the appearance of the building, a vierendeel steel truss was innovated, the loads of roof, truss and loft ceiling was transferred to small steel-concrete columns placed under truss support, not to walls. Vierendeel steel truss led to open space changed to the third floor within loft, the area increased twenty-six percent and met owner use at lower cost, results show good for ten years.

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T. V., Smitha, Madhura S, Sindhu R, and Brundha R. "A Study on Various Mesh Generation Techniques used for Engineering Applications." Journal of Innovative Image Processing 3, no. 2 (June 2, 2021): 75–84. http://dx.doi.org/10.36548/jiip.2021.2.001.

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In this paper our aim is to provide a survey of mesh generation techniques for some Engineering applications. Mesh generation is a very important requirement to solve any problem by very popular numerical method known as Finite element method (FEM). It has several applications in various fields. One such technique is Automated generation of finite element meshes for aircraft conceptual design. It’s an approach for automated generation of fully connected finite element meshes for all internal structural components, given wing body, geometry model, controlled by a few conceptual level structural layout parameters. Another application where it is used is in the study of biomolecules to generate volumetric mesh of a biomolecule of any size and shape based on its atomic structure. These methods are proved to be a faster method due to the usage of computing techniques. Mesh generator is also used for creating finite element surface and volumetric mesh from 3D binary and gray scale medical images. Some of the applications include volumetric images, surface mesh extraction, surface mesh repairing and many more. It is of great importance in understanding the human brain which is a complex subject. Though 3D visualization is a useful tool available, yet it is inadequate due to its challenging computational problem. This paper also includes the survey on latest tools used for these applications which overcomes many problems associated with the conventional approaches.

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32

Johnson, D., and D. H. Harrison. "A technique for repairing massive ventral incisional hernias without the use of a mesh." British Journal of Plastic Surgery 52, no. 5 (July 1999): 399–403. http://dx.doi.org/10.1054/bjps.1999.3084.

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33

张, 嘉敏. "Study on Preparation and Properties of PDA/CPP Bilayer on Skull Repairing Titanium Mesh." Material Sciences 07, no. 01 (2017): 134–42. http://dx.doi.org/10.12677/ms.2017.71017.

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34

Azevedo, N., E. Carrasquinho, Oliveira E. Cardoso De, F. Branco, L. Osório, V. Cavadas, and A. Fraga. "1122 Which factors influence female sexual function after repairing pelvic organ prolapse with mesh?" European Urology Supplements 15, no. 3 (March 2016): e1122. http://dx.doi.org/10.1016/s1569-9056(16)61123-5.

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35

Shokry, Mohamed M., Islam A. Khalil, Abdelhaleem El-Kasapy, Ahmed Osman, Ayman Mostafa, Mohamed Salah, and Ibrahim M. El-Sherbiny. "Multifunctional prosthetic polyester-based hybrid mesh for repairing of abdominal wall hernias and defects." Carbohydrate Polymers 223 (November 2019): 115027. http://dx.doi.org/10.1016/j.carbpol.2019.115027.

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LIMA, Diego L., Arturo ESTRADA, Xavier PEREIRA, Analena ALCABES, Prashanth SREERAMOJU, and Flavio MALCHER. "VERSATILITY OF POLY-4-HYDROXYBUTYRATE (PHASIX™) MESH IN ABDOMINAL WALL SURGERY." Arquivos de Gastroenterologia 59, no. 2 (June 2022): 226–30. http://dx.doi.org/10.1590/s0004-2803.202202000-41.

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ABSTRACT Background Poly-4-hydroxybutyrate (P4HB) is a naturally occurring polymer derived from transgenic E. coli bacteria with the longest degradation rate when compared to other available products. This polymer has been manufactured as a biosynthetic mesh to be used as reinforcement when repairing a variety of abdominal wall defects. Objective: We aim to describe our center initial experience with this mesh and discuss the possible indications that may benefit from the use of P4HB mesh. Methods: This is a descriptive retrospective study of patients who underwent abdominal wall repair with a P4HB mesh from October 2018 to December 2020 in a single, large volume, academic center. Results: A total of 51 patients (mean age 54.4 years, range 12-89) underwent abdominal wall reconstruction with a P4HB mesh between October 2018 and December 2020. The mean BMI was 30.5 (range 17.2-50.6). Twenty-three (45%) patients had a prior hernia repair at the site. We grouped patients into six different indications for the use of P4HB mesh in our cohort: clean-contaminated, contaminated or infected field (57%), patient refusal for permanent meshes (14%), those with high risk for post-operative infection (12%), visceral protection of second mesh (10%), recurrence with related chronic pain from mesh (6%), and children (2%). Median follow-up was 105 days (range 8-648). Two patients had hernia recurrence (4%) and 8 (16%) patients developed seroma. Conclusion: P4HB mesh is a safe and a viable alternative for complex hernias and high-risk patients with a low complication rate in the short-term.

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37

Al-hyani, O. H. "A comparative Study of Two Techniques for Repairing of Tracheal Defect in Dogs." Iraqi Journal of Veterinary Medicine 43, no. 1 (August 4, 2019): 1–10. http://dx.doi.org/10.30539/iraqijvm.v43i1.462.

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The objective of this study was designed to evaluate the possibility of repairing tracheal cartilage defect in dogs. 18 local breed dogs of both sexes was used in this study, they are allocated into 2 equal groups. A tracheal defect was induced in the cervical part of the trachea as a window about 3cm x 2cm in diameter. The defect was closed in 1st group by using polypropylene mesh and bone cement substance, while in 2nd group polypropylene mesh with fresh auto- bone marrow. Post-operative study including, clinical observation, gross pathology and histopathological evaluation was performed in all animals. The most important postoperative clinical observation was represented by subcutaneous emphysema at the site of operation in the 2nd group animals, which gradually disappeared within few days. Otherwise no other important complications was reported in both groups during the period of the experiment. The gross pathological changes and biopsy collection for all animals was done at 15, 30, 60 postoperative days. The gross examination revealed complete closing of the induced tracheal defect in all operated animals and a mild adhesion with the surrounding tissues. In both groups, the histopathological features was represented by newly granulation tissue formation and areas of hyaline cartilage degeneration and necrosis. The cartilage regeneration was showed only in 2nd group through by formation of new cartilage cells. In conclusion, it can use both techniques for reconstruction of tracheal defect in dogs but the auto bone marrow group was regarded the best due to improvement of the healing process. .

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Wang, Gang, Linyun Xi, Hongbo Li, Yi Wang, Chun Wu, Zhengxia Pan, Yonggang Li, Quan Wang, and Jiangtao Dai. "Experience in the Treatment of Pentalogy of Cantrell with Artificial Materials in a Single Clinical Center." European Journal of Pediatric Surgery 32, no. 01 (November 25, 2021): 050–55. http://dx.doi.org/10.1055/s-0041-1739421.

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Abstract Objective To summarize experience in the treatment of pentalogy of Cantrell (POC) in our hospital and explore the effect of artificial materials in repairing sternal defects. Materials and Methods A retrospective analysis was performed on treatment of five children with POC treated by using the Gore-Tex patch and titanium mesh in the Department of Cardio-Thoracic Surgery, Children's Hospital of Chongqing Medical University, from January 2010 to January 2019. Results The concurrent conditions included double outlet of right ventricle (n = 2), ventricular septal defect (VSD) and atrial septal defect (ASD) (n = 1), VSD and ASD and patent ductus arteriosus (n = 1), and VSD and left ventricular diverticulum (n = 1) in five cases with POC. Color Doppler echocardiography and computed tomography (CT) + three-dimensional (3D) reconstruction of the thorax and abdomen were performed preoperatively. The cardiac malformation was corrected according to color Doppler echocardiography, and a Gore-Tex patch was used to repair the pericardial defect. Titanium mesh was made according to CT 3D reconstruction with a 3D printing mold to repair sternal defects. All patients underwent a one-stage operation, all hearts were eventually repositioned, no deaths occurred after the operation, and follow-up was performed for 6 months to 2 years. The patients recovered well, and the exterior thorax was normal. Conclusion The diagnosis of POC is not difficult. The priority of surgical treatment for POC is to obtain satisfactory corrections of cardiac malformation. The repair of the pericardial defect with the Gore-Tex patch and the sternal defect with the titanium mesh can make the heart return to the mediastinum, reduce the pressure on the heart, reduce the surgical trauma, reduce the difficulty of repairing the sternal defect, and optimally restore the exterior thorax.

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Bi, Feng Long, Ying Hu, Xin Yu Chen, and Yue Ma. "Island Hole Automatic Filling Algorithm in Triangular Meshes." Applied Mechanics and Materials 347-350 (August 2013): 3486–89. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.3486.

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Aiming at the triangular mesh holes generated from incomplete data in reverse engineering, a novel algorithm on island filling was proposed. The focal point of this work was automatic recognition and repairing algorithm on island holes. The island holes are recognized based on the projection on characteristic plan. Then, by connecting island holes and outside holes of the island, island holes are converted into the ordinary holes to repair. Experiment result shown that the proposed method is efficient and stable in island hole filling.

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40

Jaánó, Zoltáan, and Attila Nagy. "3-dimensional mesh implantations to prevent and to repair parastomal hernias-operative techniques." Acta chirurgica Iugoslavica 61, no. 2 (2014): 71–76. http://dx.doi.org/10.2298/aci1402071j.

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The objective of this article is to present the operative techniques used by us for preventing and repairing parastomal hernias with specially designed 3-dimensional mesh implantations. We present the operative techniques using two kinds of meshes: the SURGIMESH WN? Parastomal and SURGIMESH? XB Parastomal (Aspide Medical). The operative techniques are presented in 4 sections: prevention of parastomal hernias by the time of Miles operations and repair of parastomal hernias with these two kind of meshes. These techniques are applicable for open procedures, but at each section we refer to the laparoscopic approaches, too. Financial dislosure: The authors declare no potential conflicts of interest. SURGIMESH WN? Parastomal and SURGIMESH? XB Parastomal were provided free of charge by the manufacturer.

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Antonopoulos, Ioannis Michel, William Carlos Nahas, Eduardo Mazzucchi, Affonso Celso Piovesan, Claudio Birolini, and Antonio Marmo Lucon. "Is polypropylene mesh safe and effective for repairing infected incisional hernia in renal transplant recipients?" Urology 66, no. 4 (October 2005): 874–77. http://dx.doi.org/10.1016/j.urology.2005.04.072.

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O'Halloran, Eileen Bock, Corbin J. Barwegen, James M. Dombrowski, Darl K. Vandevender, and Fred A. Luchette. "Can't have one without the other: Component separation plus mesh for repairing difficult incisional hernias." Surgery 156, no. 4 (October 2014): 894–901. http://dx.doi.org/10.1016/j.surg.2014.06.021.

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Tiwary, Satyendra Kumar, Puneet Kumar, and Ajay Kumar Khanna. "Iliolumbar incisional hernia following iliac bone harvesting: a rare complication." Proceedings of Singapore Healthcare 25, no. 4 (July 31, 2016): 252–53. http://dx.doi.org/10.1177/2010105816646125.

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Incisional hernia is a common post-surgical complication, but hernias through iliac bone defects after the harvesting of an iliac bone graft is rare. The common presentation includes swelling and discomfort, and sometimes features of intestinal obstruction. A computerized tomography (CT) scan is commonly used for the diagnosis and to define the anatomical defect in the bone. Surgery is recommended because of high risk of strangulation. While various methods of repairing this type of hernia have been described, we chose to perform mesh repair for an iliolumbar incisional hernia.

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Chughtai, Bilal, Matthew D. Barber, Jialin Mao, James C. Forde, Sharon-Lise T. Normand, and Art Sedrakyan. "Association Between the Amount of Vaginal Mesh Used With Mesh Erosions and Repeated Surgery After Repairing Pelvic Organ Prolapse and Stress Urinary Incontinence." JAMA Surgery 152, no. 3 (March 1, 2017): 257. http://dx.doi.org/10.1001/jamasurg.2016.4200.

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Schembari, Elena, Maria Sofia, Rosario Lombardo, Valentina Randazzo, Ornella Coco, Edoardo Mattone, Gaetano La Greca, Domenico Russello, and Saverio Latteri. "Is the sublay self-gripping mesh effective for incisional ventral hernia repair? Our experience and a systematic review of the literature." Updates in Surgery 72, no. 4 (May 8, 2020): 1195–200. http://dx.doi.org/10.1007/s13304-020-00762-1.

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AbstractSublay mesh repair seems to be the most effective method for treating incisional hernias (IHs). The aim of this study was to report our experience with retromuscular repair and self-gripping mesh for the treatment of midline IHs. In addition, we provided a systematic review of the literature regarding the use of this novel combination. All patients undergoing elective IH repair from June 2016 to November 2018 were included. The self-gripping mesh was placed in the sublay position. Demographic data, defect sizes, postoperative complications and follow-up durations were collected. A systematic review of the available literature was conducted in January 2020 using main databases. A total of 37 patients (20/17M/F) were included in this study, and the mean age and body mass index (BMI) were 58 years and 27 kg/m2, respectively. Minor complications occurred in six patients. Long-term follow-up demonstrated recurrence in three patients. Regarding the review, five publications were considered relevant. The highest complication rate was 28.6%, and the recurrence rate varied from 0 to 5.1%. This is the first review of the literature regarding sublay IH repair using a self-gripping mesh. The low rates of postoperative complications and recurrence in our experience and those reported by most of the reviewed articles demonstrate that this is a safe and effective method for repairing IHs.

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Lombardo, Riccardo, Fiona C. Burkhard, and Andrea Tubaro. "Re: Association Between the Amount of Vaginal Mesh Used with Mesh Erosions and Repeated Surgery After Repairing Pelvic Organ Prolapse and Stress Urinary Incontinence." European Urology 75, no. 1 (January 2019): 196–97. http://dx.doi.org/10.1016/j.eururo.2018.10.048.

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Altuntas, Irfan, Omer Tarhan, Namik Delibas, Recep Cetin, and Recep Sutcu. "Seprafilm® Reduces Adhesions to Polypropylene Mesh and Increases Peritoneal Hydroxyproline." American Surgeon 68, no. 9 (September 2002): 759–61. http://dx.doi.org/10.1177/000313480206800904.

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Polypropylene mesh is an effective and widely used material in repairing abdominal wall defects, but it causes dense adhesions when in contact with abdominal viscera directly. As a consequence of this process intestinal obstruction and enterocutaneous fistula may develop. The purpose of the present study was to determine whether Seprafilm®, a bioresorbable translucent membrane, reduces abdominal visceral adhesions to polypropylene mesh and whether Seprafilm® has any effects on peritoneal tissue hydroxyproline levels. Twenty-six adult Wistar rats were used. A full-thickness abdominal wall defect was created and cecal abrasions were created to induce adhesion formation in each animal. All of the abdominal defects were repaired with polypropylene mesh. In addition a Seprafilm® membrane was laid over the abdominal viscera in the Seprafilm® group (n = 13). The abdominal cavity was evaluated for adhesion formation, and peritoneal biopsies were taken for the measurement of tissue hydroxyproline levels at the 14th day. The use of Seprafilm® resulted in significant reduction in the adhesion formation ( P = 0.002) and a significant increase in peritoneal hydroxyproline level ( P < 0.0001). These findings demonstrate that the increase of peritoneal hydroxyproline levels caused by Seprafilm® might play a role on the antiadhesive effects of Seprafilm®.

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Parikh, Archit Pankaj Kumar, Parth Parikh, Dhaval Vadodariya, Jignesh P. Dave, and Jatin G. Bhatt. "Triple mesh technique in repair of recurrent lumbar incisional hernia." International Journal of Research in Medical Sciences 7, no. 12 (November 27, 2019): 4803. http://dx.doi.org/10.18203/2320-6012.ijrms20195560.

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Lumbar hernias occur infrequently and can be congenital, primary (inferior or Petit type, and superior or Grynfeltt type), post-traumatic, or incisional. They are bounded by the 12th rib, the iliac crest, the erector spinae, and the external oblique muscle. Most postoperative incisional hernias occur in nephrectomy or aortic aneurysm repair incisions for which various surgical method in context of meshplasty are available. In this case 60 yr. male hypertensive patient presented to the outpatient clinic of institute with recurrent left side lumbar incisional hernia, patient was previously operated for left side nephrolithiasis 15 years back and onlay meshplasty 2 years back for incisional hernia. The patient was operated under high risk for recurrent incisional hernia repair by triple layered meshplasties in the same sitting. Lumbar incisional hernias are often diffuse with fascial defects that are usually hard to appreciate. Computed tomography scan is the diagnostic modality of choice with adjuvant clinical findings, which allows differentiating them from abdominal wall musculature denervation atrophy complicating flank incisions. Repairing these hernias is difficult due to the surrounding structures for which our surgical approach included a triple mesh repair consisting of underlay, inlay and onlay meshplasty thereby anticipating further such incidences of incisional hernia.

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Chrysos, Emmanuel, Elias Athanasakis, Zenia Saridaki, Alexandros Kafetzakis, Dimitra Dimitriadou, Vasilios Koutsoumpas, George Chalkiadakis, Evangelos Xynos, and Odysseas Zoras. "Surgical Repair of Incisional Ventral Hernias: Tension-Free Technique Using Prosthetic Materials (Expanded Polytetrafluoroethylene Gore-Tex Dual Mesh)." American Surgeon 66, no. 7 (July 2000): 679–82. http://dx.doi.org/10.1177/000313480006600715.

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Repairing an incisional ventral hernia is a major challenge for a surgeon. The high recurrence rates observed during hernia repair by tissue approximation led to development of tension-free procedures by using prosthetic materials. The purpose of this study is to report the results of a tension-free repair technique using expanded polytetrafluoroethylene Gore-Tex Dual Mesh (Gore-Tex Soft Tissue Patch, W.L. Gore and Associates Inc, Flagstaff, AZ) in patients with primary or recurrent incisional ventral hernias. Over 3 years, 52 patients with incisional hernias have undergone this procedure in our clinic. Fourteen of them had recurrent hernias which had been primarily repaired by Mayo hernioplasty. Six of our patients had irreducible hernias preoperatively. Twenty-five patients had hernias on midline incisions, and the rest of them had hernias on transverse abdominal incisions. The median patient age was 65 years, and all were operated on under general anesthesia. The majority of the patients had 4 to 6 days of hospitalization. A subcutaneous seroma developed in eight patients. They all were treated by multiple paracentesis. Four of our patients experienced wound infection and were treated by mesh removal. None of the patients presented with cardiovascular or pulmonary complications. During the follow-up period, no other hernia recurrence, except the cases with mesh removal, has been noticed. The tension-free incisional hernia repair using expanded polytetrafluoroethylene mesh is, to our experience, a safe and easy procedure with no major morbidity or recurrence.

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Di Carlo, Isidoro, Adriana Toro, Francesca Sparatore, and Giuseppe Corsale. "Lumbar Hernia Repaired Using a New Technique." American Surgeon 73, no. 1 (January 2007): 54–57. http://dx.doi.org/10.1177/000313480707300112.

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Lumbar hernia is uncommon and occurs in Grynfeltt's triangle on the left side, more frequently in men than in women. Acquired lumbar hernias are the result of iliac crest bone harvest or blunt trauma and seat belt injuries in road accidents. Many surgical options have been reported for repairing this hernia through primary closure of the defect or through use of aponeurotic or prosthetic materials. The Dowd technique is the technique most often used. The authors describe a patient with posttraumatic inferior triangle lumbar hernia who underwent laparoscopy and, 10 days later, laparotomy. Both procedures failed. Finally, a novel lumbotomic surgical approach was used, involving the Dowd technique and prosthetic mesh. The patient was free of recurrence 3 months after the procedure.

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