Wound Bed Preparation

By the WoundSource Editors Wound healing is a highly complex chain of events that allows the skin to repair and regenerate to provide protective functions, such as temperature modulation, and moisture regulation, as well as sensation reception and transmission.

Chronic and non-healing wounds are those that do not progress through the healing process in a timely or predicted manner. They are a global problem and are becoming harder to treat. Medicare estimates that over 8 million Americans have chronic wounds that cost the national health care system between $18.1 and $96.8 billion dollars annually.

By Steven A. Kahn, MD When treating severe burns, surgeons generally consider eschar removal to be the major factor and the top challenge in both initiating and planning for the optimal course of treatment for each patient. Before grafting, all devitalized tissue must be removed, leaving a wound bed of only healthy tissue. Some burn wounds are clearly full-thickness on initial examination, and some are clearly superficial, with relatively straightforward decision making. However, some wounds have an indeterminate depth and are more challenging. Deep partial-thickness, indeterminate-, and heterogenous-depth wounds require more complex decision making and/or a protracted interval to allow the wound to declare. Eschar removal is sometimes necessary to allow surgeons to assess the wound bed and confirm the depth and severity of certain burns. This, in turn, provides the insights a surgeon needs to determine the best course of treatment, including whether a patient must be treated with an autograft to cover a wound area.

By Ron Sherman MD, MSC, DTM&H I have been avoiding the topic of addressing the differences between contained (bagged) versus confined (non-bagged or "free-range") maggot therapy because I haven't wanted to take a position in affairs that affect specific companies' products. In addition, I have a conflict of interest in that I run a laboratory that produces one type of dressing and not the other. Nevertheless, I have been dragged involuntarily into this conversation by the hoards of people who ask me about the data and information surrounding the application of maggots in containment bags. Indeed, I may even have an obligation to share my thoughts, given my role in the maggot therapy movement, and given that I have experience in testing and using both techniques. So with that understanding, let's begin by exploring the maggot dressing options currently available. The terminology can be a bit confusing so we should begin there.

Wound bed preparation is vital to treating biofilm. Resistant to antibiotic treatment, biofilm not only stalls the healing process of chronic wounds but also puts patients at greater risk for amputation. Clinicians should follow the process of successful wound healing described in the TIMERS framework (Tissue, Inflammation/infection, Moisture imbalance, Epithelial edge advancement, Repair/regeneration, and Social factors) to guide wound care. Proper wound bed preparation recognizes that biofilm prevention and treatment in chronic wounds incorporate aggressive wound debridement to suppress biofilm regrowth, disrupt the bacterial burden, and promote a healthy wound bed environment

By Ronald Sherman MD, MSC, DTM&H Bob Hope and Bing Crosby starred in a series of films called "On the Road" in which the duo traveled around the globe, facing a variety of amusing obstacles and mishaps. Therapists and patients desiring maggot debridement therapy (MDT) for their non-healing wounds often face a variety of obstacles, too... though they may not seem quite as amusing. Let's consider some of these obstacles and examine ways to avoid or mitigate them.

Conservative sharp debridement: The removal of nonviable tissue from the wound bed through the use of sharp instruments at the bedside or in the clinic. Debridement: The removal of nonviable tissue, debris, and biofilm from the wound bed. Enzymatic debridement: The removal of nonviable tissue from the wound bed through the use of an enzymatic agent to liquefy this nonviable tissue.

By the WoundSource Editors A wound specialist’s job is to outline the options available for treatment. It is the patient’s job to choose a treatment option. Patients do not even have to select the best option. They must choose an option that works for them given their unique circumstances having a wound. When it comes to selecting debridement methods there are several options to choose from. This article will provide an overview of the most common debridement methods.

By James McGuire, DPM, PT, LPed, FAPWHc In my recent WoundSource webinar, I discussed the topic of debridement strategies and chronic wounds. The webinar is still available for viewing on WoundSource.com. Wound debridement is the foundation for healing in chronic wounds. Excessive debridement is a detriment to healing, whereas proper removal of accumulated non-viable tissue or foreign material from the wound bed maintains a healthy progressive healing trajectory and avoids wound chronicity.