Annals of Thoracic Medicine Official publication of the Saudi Thoracic Society, affiliated to King Saud University
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Year : 2014  |  Volume : 9  |  Issue : 3  |  Page : 158-161

Properties of novel composite meshes in chest wall reconstruction: A comparative animal study

1 Division of Cardiothoracic Surgery, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
2 Division of Cardiac, Thoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
3 Division of Thoracic Surgery and Lung Support, Ibbenbüren General Hospital, Ibbenbüren, Germany

Correspondence Address:
Patrick Zardo
Division of Cardiothoracic Surgery, Otto-von-Guericke University Magdeburg, Leipziger Strasse 44, 39120 Magdeburg
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Source of Support: We would like to thank Mr. Christian Finke for his kind support, Conflict of Interest: This work was supported by a research grant provided by Covidien, Mansfield MA, USA

DOI: 10.4103/1817-1737.134071

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Purpose: Novel composite meshes routinely used in laparoscopic hernia repair reportedly lead to fewer and less dense visceral adhesions and may provide a viable alternative in thoracic surgery as well. Methods: A total of 15 adult domestic pigs underwent full thickness chest wall resection and reconstruction with Parietene (polypropylene composite; PTE, n = 5), Parietex (polyester composite; PTX, n = 5) or Bard (purely polypropylene, n = 5) mesh. After an observation period of 90 days all animals were sacrificed, intrathoracic adhesions classified via thoracoscopy (VATS), meshes explanted and peak peal strength required for lung/mesh separation recorded. Results: Adhesions assessed through VATS-exploration were strongest in the PTX-Group while PTE and BM showed comparable results. Tensiometric analyses of peak peal strength confirmed lower values in BM than for PTE and PTX. Both composite materials showed good overall bioincorporation with post-surgical perigraft-fibrosis being strongest in BM. Conclusion: We consider composite grafts a suitable alternative for chest wall reconstruction. They are characterized by good overall biointegration and limited perigraft-fibrosis, thus potentially facilitating redo-procedures, even though a hydrophilic coating per se does not appear to prevent intrathoracic adhesion formation.

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