alexa A scientific evidence for the efficacy of biologic implants for soft tissue reconstruction.


Journal of Surgery

Author(s): Smart NJ, Bryan N, Hunt JA, Smart NJ, Bryan N, Hunt JA

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Abstract The challenges and complications arising from abdominal surgery frequently necessitate soft tissue reconstruction or augmentation. Soft tissue repair generally has been revolutionised by the introduction of synthetic meshes, but their use is contra-indicated in contaminated or infected fields. Biologic materials derived from devitalised allo- or xenogeneic tissues have been proposed as a safer alternative to synthetics and provide an extracellular scaffold necessary for the in-growth of new blood vessels and infiltration of native stromal cells. We review the scientific evidence behind commercially available biologic prostheses in relation to the impact of tissue source, manufacturing processes and supplemental cross-linking on in vitro and in vivo (animal model and clinical) performance. Cross-linked meshes exhibit increased resistance to collagenase activity and degradation whilst still allowing tissue in-growth. Mesh durability may be the most important characteristic in determining optimal clinical outcomes, particularly in the context of the increased collagenase activity seen in contaminated or infected fields. Of all the biologic meshes currently available, HDMI cross-linked acellular porcine dermis has been associated with the best clinical outcomes in contaminated or infected fields. © 2012 The Authors. Colorectal Disease © 2012 The Association of Coloproctology of Great Britain and Ireland. This article was published in Colorectal Dis and referenced in Journal of Surgery

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