Department of General Surgery, Urgency, and Organ Transplantation, University of Palermo, via del Vespro 129, 90100 Palermo, Italy.
Hernia. 2010 Aug;14(4):389-95. doi: 10.1007/s10029-010-0650-7. Epub 2010 Mar 24.
Aiming to achieve a simplified ventral hernia repair, a proprietary oval-shaped mesh was experimentally tested in a porcine model. The mesh is structured with a large central body and radiating straps. The friction of the straps passing through the tissues are hypothesized to be adequate to maintain the position of the mesh during tissue ingrowth, avoiding classic point fixation while ensuring a wide coverage of the abdomen.
The mesh, having six radial straps, was placed using a sublay preperitoneal technique in four pigs. All straps were passed laterally through the abdominal wall and exteriorized from the skin. The straps were trimmed at the level of the skin, allowing the stumps to recoil into the subcutaneous space. The animals were euthanized at 1 and 4 months to determine the integration of the straps.
Macroscopically, all 24 straps were firmly incorporated within the abdominal wall. The tension-free placement of the mesh by using the straps was effective. The friction of the straps passing through the tissues was adequate to keep the mesh well orientated. No dislocation of the implants was observed. The strap system also allowed a broader coverage of the abdominal wall, far beyond the wound opening.
The described arm system of the aforementioned implant seems to be effective in eliminating point fixation of the mesh. The fixation arms seemed to have ensured that the mesh stayed orientated in all of the animals. A very wide lateral mesh placement was accomplished, assuring sufficient defect overlap when shrinkage occurs.
为了实现简化的腹疝修复，一种专有的椭圆形网片在猪模型中进行了实验测试。该网片由一个大的中央体和放射状的带子组成。假设带子穿过组织时的摩擦力足以在组织内长入期间保持网片的位置，避免经典的点状固定，同时确保腹部的广泛覆盖。
该网片有 6 个放射状的带子，采用腹膜前下置技术在 4 头猪中放置。所有的带子都横向穿过腹壁，并从皮肤穿出。带子在皮肤水平处修剪，使残端回缩到皮下空间。动物在 1 个月和 4 个月时被安乐死，以确定带子的整合情况。
宏观上，所有 24 个带子都牢固地整合在腹壁内。通过带子无张力地放置网片是有效的。带子穿过组织的摩擦力足以保持网片的良好定向。没有观察到植入物的脱位。该带系统还允许更广泛的腹壁覆盖，远远超出伤口开口。
所描述的植入物的臂系统似乎有效地消除了网片的点状固定。固定臂似乎确保了网片在所有动物中都保持定向。完成了非常广泛的侧方网片放置，当发生收缩时，确保了足够的缺陷重叠。
