The Biomechanical and Histopathologic Effects of Surface Texturing with Silicone and Polyurethane in Tissue Implantation and Expansion

Barone, Frank E.; Perry, Larry; Keller, Tony S.; Maxwell, G. Patrick

doi:10.1097/00006534-199207000-00012

Cited by 107 publications

(43 citation statements)

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“…Some were found in the more superficial layer, while others were found in the deeper layers. These variations are in agreement with the findings of other studies 15,17,19,20 . Also in agreement with our findings, Kostakoglu et al 20 observed refringent material in a foreign body granuloma.…”

Section: Discussionsupporting

confidence: 94%

Avaliação histológica e de espessura das cápsulas orgânicas formadas ao redor de expansores de tecidos de superfície lisa ou texturizada em humanos

Filho¹,

Cuzzi

Franco

et al. 2012

Rev. Bras. Cir. Plást.

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Section: Discussionsupporting

confidence: 94%

Avaliação histológica e de espessura das cápsulas orgânicas formadas ao redor de expansores de tecidos de superfície lisa ou texturizada em humanos

Filho¹,

Cuzzi

Franco

et al. 2012

Rev. Bras. Cir. Plást.

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“…The decisive progress in alloplastic breast reconstruction is based on the development and introduction of anatomically shaped implants. This shape of implants facilitates the reconstruction of a natural, symmetrical breast as it is found in Europe and America [2,6,7].…”

Section: Development Of Expander and Implant Technologymentioning

confidence: 93%

“…In conditions of thin soft tissue, combining polyurethane surfacing and surrounding tissue can cause surgical diiculties in case of a necessary change of implants, or it can be a contraindication for reimplanting [2,6]. The illing of the implants with cohesive silicone gel in combination with an enforced coat of the implant leads to signiicantly higher safety of the implants.…”

Section: Development Of Expander and Implant Technologymentioning

confidence: 99%

Aspects of Immediate and Delayed Alloplastic Breast Reconstruction After Mastectomy

Friedrich¹,

Kraemer²

2017

Breast Cancer - From Biology to Medicine

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Seventy percent of patients with early breast cancer can be treated by breast-conserving surgery, while the remaining 30% are forced to receive mastectomy. Nearly 30% of these patients choose breast reconstruction. In the last decade, new alternative techniques and improved surgical devices have signiicantly improved techniques for breast reconstruction that especially include immediate or delayed breast reconstruction with silicone implants as an excellent option. In general, implant reconstruction may be single-or two-stage procedures. Single-stage reconstruction is the preferred technique for patients with small breasts and minimal ptosis, while large breasts with ptosis require reduction mastopexy either combined with dermoglandular lap or with titane net for covering the caudal pole of the implant. Thus, excellent cosmetic results can be achieved. Recent studies showed a signiicant survival beneit for postmastectomy irradiation in nodal-positive patients, so that many candidates for breast reconstruction are irradiated with a higher probability of wound-healing complications after breast reconstruction and increased rates of other complications like capsular ibrosis.

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“…En algunas cápsulas de varios años de evolución se han observado placas calcificadas en su superficie interna 5,9,13,15 . Las cápsulas de las prótesis rugosas, como la cubierta de poliuretano y la texturada Biocell, suelen ser macroscópi-camente más gruesas y vascularizadas 5,32 . Bucky y col 33 opinan que las superficies rugosas conllevan una superficie mayor, con depósito mayor de fibras de colágeno y, de este modo, una cápsula más gruesa.…”

Section: Características Macroscópicasunclassified

“…Con las prótesis mamarias cubiertas de poliuretano el efecto preventivo de la contractura capsular se ha atribuido a que la fuerza contráctil del tejido fibroso, desorganizado y distribuido en microcápsulas numerosas, se dispersa en direcciones múl-tiples, neutralizándose la tensión alrededor del implante 28,32,36 . Con las prótesis de silicona texturadas se pretende un efecto similar, que impida el alineamiento paralelo de fibras de colágeno, pero sin la biodegradación y formación de microcápsulas observadas con el poliuretano 3 .…”

Section: Superficie De La Prótesisunclassified

Reacción tisular a las prótesis mamarias: Contractura capsular periprotésica

Escudero

Guarch

Lozano

2005

Anales Sis San Navarra

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RESUMENLas prótesis mamarias de silicona provocan el desarrollo de una envoltura fibrosa o cápsula periprotésica. La contractura de la cápsula, por retracción del tejido fibroso, es la complicación más frecuente e importante de estos implantes. Produce un endurecimiento de grado variable y, en los casos avanzados, deformidad de la mama. Se ha relacionado estrechamente con el tipo de superficie del implante (lisa o texturada) y con la disposición de las fibras de colágeno, habiéndose sugerido que la formación de una cápsula continua, con fibras de colágeno dispuestas paralela y circularmente alrededor de las prótesis lisas, promueve el desarrollo de fuerzas contráctiles concéntricas, que traccionando al unísono producirían la contractura. Con las prótesis texturadas microporosas se ha demostrado una incidencia significativamente más baja de contractura capsular en comparación con las lisas. Se considera que el crecimiento tisular dentro de la estructura microporosa origina fuerzas contráctiles multidireccionales, con tendencia a neutralizarse entre ellas cuando su efecto se suma sobre el implante. La cápsula de estos implantes presenta una zona basal compuesta de múltiples capas de fibras de colágeno alineadas paralelamente, la cual podría contraerse. Sin embargo, la adherencia de las prótesis texturadas microporosas podría contrarrestar las fuerzas contrác-tiles.Palabras clave. Prótesis mamarias. Cápsula periprotésica. Contractura capsular. ABSTRACTSilicone breast prostheses prompt the development of a fibrous casing or periprosthetic capsule. Capsular contracture, due to retraction of the fibrous tissue, is the most frequent and important complication of these implants. It produces varying degrees of hardening and, in advanced cases, deformity of the breast. It has been closely related to the type of surface of the implant (smooth or textured) and with the alignment of the collagen fibers, and it has been suggested that the formation of a continuous capsule, with collagen fibers aligned in parallel and circularly around the smooth prostheses, promotes the development of concentric contractile forces that pulling in unison give rise to contracture. With microporous textured prostheses a significantly lower incidence of capsular contracture has been shown in comparison with smooth prostheses. It is believed that tissue growth within the microporous structure gives rise to multidirectional contractile forces, with a tendency to neutralize one another when their effect is added over the implant. The capsule of these implants presents a base zone composed of multiple layers of collagen fibers aligned in parallel, which might contract. However, the adherence of the microporous textured prostheses might counteract the contractile forces.

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The Biomechanical and Histopathologic Effects of Surface Texturing with Silicone and Polyurethane in Tissue Implantation and Expansion

Cited by 107 publications

References 0 publications

Avaliação histológica e de espessura das cápsulas orgânicas formadas ao redor de expansores de tecidos de superfície lisa ou texturizada em humanos

Avaliação histológica e de espessura das cápsulas orgânicas formadas ao redor de expansores de tecidos de superfície lisa ou texturizada em humanos

Aspects of Immediate and Delayed Alloplastic Breast Reconstruction After Mastectomy

Reacción tisular a las prótesis mamarias: Contractura capsular periprotésica

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