Surgical Technology International

42nd Edition

 

Contains 48 peer-reviewed articles featuring the latest advances in surgical techniques and technologies. 380 Pages.

 

September 2023 - ISSN:1090-3941

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Advanced Wound Healing

Hidradenitis Suppurativa: Surgery, Lasers, and Emerging Techniques
Narges Maskan Bermudez, BS, Abby Hargis, BS, Marita Yaghi, MD, Hadar Lev-Tov, MD, MAS, Associate Professor, University of Miami Miller School of Medicine, Miami, FL, USA

1659

 

Abstract


Hidradenitis suppurativa (HS) is a chronic inflammatory skin disorder that is characterized by painful nodules, abscesses and tunnels in skin folds. Current management of HS often requires a multidisciplinary approach, including medical, procedural, surgical, and psychosocial intervention. Here we review surgical techniques for the treatment of HS. While many surgical options are available for patients with HS, it is imperative that surgical planning focuses on medical optimization, patient risk factors, disease severity, and patient preferences to achieve the best outcomes.

 

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Implantable Biologics for Soft Tissue Surgery Reinforcement

Callie Horn, MD, Nicole Uzor, MD, Allegra Fierro, MD, Marnie Abeshouse, MD, Keval Ray, MD, Mount Sinai Hospital, New York, NY, John C Lantis II, MD, Professor of Surgery, Icahn School of Medicine at Mount Sinai New York, NY

1680

 

Abstract


Soft tissue reinforcement focuses on medical grafts that are designed to support and regenerate soft tissue under or near suture lines. Soft tissue is defined as areas of similarly specialized cells that function to connect, support, and surround other structures and organs of the body. These tissues include skin, subcutaneous tissue, fascia, ligaments, tendons, fibrous tissues, fat, synovial membranes, and muscle. Most of the implantable devices used for this purpose are made of collagen, the most abundant protein in mammals and a key component of the extracellular matrix of soft tissues that allows for tissue repair. For suture line reinforcement, exogenous collagen from various sources is implanted under or in continuity with the suture line to allow for increased strength and better healing. First introduced in the field of breast reconstruction, this practice is now also used in hernia repair, dural repair, vaginal slings, amputation reinforcement, tendon repair reinforcement, and even dental soft tissue regeneration.

 

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Novosorb® Biodegradable Temporising Matrix (BTM) and its Applications
Pelicia Lim, MBBS, Henry Li, MBBS, Sally Ng, MBBS (Hons), FRACS, Austin Health, Victoria, Australia

1608

 

Abstract


The NovoSorb® Biodegradable Temporising Matrix (BTM) (PolyNovo Biomaterials Pty Ltd, Port Melbourne, Victoria, Australia) is a fully synthetic dermal matrix that can be used to reconstruct complex wounds. It consists of a 2mm-thick NovoSorb® biodegradable polyurethane open-cell foam covered by a non-biodegradable scaling member. Application involves a two-stage procedure. In the first stage, BTM is laid onto a clean wound bed, and in the second stage, the sealing membrane is removed and a split skin graft is applied to the neo-dermis. BTM has been used to reconstruct deep dermal and full-thickness burns, necrotising fasciitis, and free flap donor sites in the early phase. This review documents examples from a comprehensive series of cases in which BTM was applied to a wide range of complex wounds, ranging from hand and fingertip injury, to Dupuytren’s surgery, chronic ulcers, post excision of cutaneous malignancies, and hidradenitis suppurativa. BTM can be applied to a wide range of complex wounds which may otherwise require a more challenging reconstruction. It should be considered an important adjunct to the reconstructive ladder.

 

 

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Acellular Fish Skin for Tissue Replacement
Callie Horn, MD, Allegra Fierro, MD, Mount Sinai Hospital, New York, NY, John C Lantis II, MD,
Professor of Surgery, Icahn School of Medicine at Mount Sinai, New York, NY

1710

 

Abstract


In modern practice, xenografts play a crucial role in wound management due to their regenerative properties. Of the various xenografts currently available on the market, acellular fish skin (AFS) grafts have emerged as a more effective alternative to existing xenografts and other standard of care (SOC) treatments for wound healing. Since AFS grafts require minimal processing, they maintain their structural integrity and natural properties, including an abundance of Omega-3 fatty acids, which is a distinctive, pro-regenerative feature. AFS grafts are also unique in that they are not derived from mammalian tissue, so there is no risk of viral transmission and no cultural or religious barriers to use. AFS grafts have been shown to be more cost-effective in the treatment of diabetic foot ulcers (DFUs) and result in a higher percentage of healed wounds, fewer amputations, and better patient quality of life. Several studies and case reports have highlighted the versatility of AFS in not only acute and chronic wound healing, but also for burn wound skin regeneration. Additionally, AFS may have promise as an implantable biologic matrix for suture line reinforcement in hernia repairs or breast and dura reconstruction.

 

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A Sensor for Monitoring the Antimicrobial Activity of Wound Dressings for Both Surgical Site Infections (SSIs) and Chronic Wounds
Marcus J. Swann, PhD, Neville J. Freeman, PhD, Fergus Watson, PhD1, Stephen J. Law, PhD, Steven L. Percival, PhD, Professor (hon), Centre for Biofilm Science and Technologies (CBST), 5D Bioscience (part of the 5D Health Protection Group Ltd), Liverpool, United Kingdom

1692

 

Abstract


Antimicrobial impregnated wound dressings are a critical tool for the management, prevention, and control of surgical site infections (SSIs) and infected chronic wounds. However, the sustained therapeutic antimicrobial activity of the dressing when employed for extended periods cannot be readily determined in vivo. Consequently, dressings are changed frequently to ensure that their antimicrobial activity is maintained. Whilst frequent dressing changes allow the wound to be assessed, this is time-consuming and can cause disruption to the wound bed impairing the healing process. Furthermore, this increases medical costs for the patient and hospitals. This paper introduces a novel concept to monitor the therapeutic levels of an antimicrobial component within a wound dressing ensuring the wound dressing remains “fit for purpose” and avoiding indiscriminate use of antiseptics. This could help to inform clinicians whether the antimicrobial is still being delivered at therapeutic levels and as such when to change the dressing ensuring timely positive clinical outcomes. Silver has been used historically as an antimicrobial agent and is ubiquitous in current generations of antimicrobial wound dressings. However, its activity is complex due to the poor solubility of silver ions in the presence of chloride and the effect of complexation by other components in the dressing and wound ecosystem, not least by serum proteins. In this paper, we detail an electrochemical silver sensor (5D patent protected - WO2023275553A1), constructed using a platinum (Pt) nanoband array electrode, and characterise its response to silver ions. This is determined in the presence of bovine serum albumin (BSA) and simulated wound fluid (SWF) containing chloride and rationalised using atomic analysis of the composition of the SWF. The sensor response in SWF is compared with the antimicrobial activity of silver against Pseudomonas aeruginosa in the planktonic and biofilm state, as a function of the amount of silver nitrate added. At low concentrations, silver in SWF has good solubility but reduced antimicrobial effect due to binding of silver by BSA as shown by the sensor response. At intermediate concentrations, above 10ppm, the silver was efficacious on both planktonic microorganisms and biofilm impregnated with microorganisms and readily detected with the sensor. At high concentrations, silver precipitates and both the silver in solution and the sensor response plateaus. The data demonstrates how the sensor correlates with the antimicrobial activity of the silver in vitro and how this could be used to actively monitor antimicrobials in vivo.

 

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The Shift to Synthetics: A Review of Novel Synthetic  Matrices for Wound Closure

 

Callie P. Horn MD, Allegra L. Fierro MD, John C. Lantis II MD, Professor, The Mount Sinai Hospital, New York, NY

1711

 

Abstract


Since the late 1990s, a growing number of “skin substitutes” have become available to practitioners seeking to heal large surface wounds. These extracellular matrices were originally from xenograft sources, and then from very highly engineered living human cellular tissues. More recently, they consist of biosynthetic materials that are combinations of silicone, collagen and chondroitin. The list of xenograft materials as well as minimally manipulated human tissues, such as human skin-, amniotic- and placental-based products, has grown exponentially. Over the last 5 years, truly synthetic materials have become part of the armamentarium available for closing large wounds. The first notable product in this category was made of polyurethane. These purely synthetic products do not have any components made of naturally occurring structures, such as collagen. In this review, we seek to create a rudimentary framework in which to understand these synthetic products and to review the current literature that supports the use of these novel yet intriguing therapies.

 

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Karl Storz

  • Karl Storz Karl Storz

 

 

 

Abbvie

  • Karl Storz Karl Storz

 

 

 

PolyNovo

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Kerecis®
  • Kerecis® Kerecis®

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ETS
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