Collagen is a fibrous protein which is insoluble and is produced by cells called fibroblasts. Dressings formed from collagen serve many purposes. This article describes what makes these dressings different from others, and how they are used.
Product Overview
Collagen is found in many different types of connective tissues, such as cartilage, bone, ligaments and skin. Collagen dressings can stimulate the growth of new tissue in the wound bed. These dressings can be found in many different forms, such as sheets, gels, pads, particles and pastes. They are manufactured from bovine, porcine, or avian sources, and may be purified to prevent reaction. However, some people may still experience a reaction to bovine-based collagen products.
Indications
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Wounds that have “stalled” in the healing phase
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Partial thickness burns
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Pressure ulcers
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Diabetic ulcers
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Skin graft donor sites
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Dehisced surgical wounds
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Infected wounds, providing the infection is managed locally or systemically
Contraindications
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Dry wounds
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Wounds with necrosis
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Third-degree burns
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Sensitivity to bovine products
Advantages
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Absorb fluids (exudate)
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Help to maintain a moist wound environment
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Can be used with topical agents
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Accelerate the repair of wounds
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Conform to any shape of wound
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Non-adherent; will not stick to newly granulated tissue
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Easy to apply and remove
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The dressing can be left in place for up to 7 days
Disadvantages
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Require a secondary dressing
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Can be expensive to use
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May be unpleasant for the patient due to unusual odor
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Application may be difficult
If used on dry wounds, collagen dressings should be pre-moistened with normal saline. Manufacturer’s directions for use should be followed, and the expiration date on collagen products should be checked, as some of these products are not heat-stable when stored improperly.
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Sources:
Worley, C. (2005). So, what do I put on this wound? Wound dressing puzzle: part 1: collagen dressings. Dermatology Nursing, 17(2):143-144.
Corbett, L., Dubuc, D., & Milne, C. (2002). Wound, Ostomy and Continence Nursing Secrets; A Hanley and Belfus Title, ISBN 1560535237
