Surgical Wound Care and Healing

Surgical wound care and healing covers the biology of how surgical incisions repair and the nursing care that supports that process. It connects the overlapping phases of wound healing — haemostasis, inflammation, proliferation, and remodelling — with practical care of the incision, recognition of impaired healing or infection, and measures that protect the wound.

Definition

Wound healing is the biological process by which injured tissue is repaired; in the surgical context it refers to the repair of an operative incision and the nursing care that supports uncomplicated healing.

Scope

This topic covers the physiology of wound healing, the assessment and care of surgical wounds, factors that delay healing (such as infection, poor perfusion, and impaired nutrition), and the prevention and recognition of surgical-site infection. It is presented for reference and education; it does not provide dressing-selection protocols, dosing, or individualised wound-management instructions.

Key concepts

• Phases of wound healing (haemostasis, inflammation, proliferation, remodelling)
• Primary, secondary, and tertiary intention healing
• Surgical wound assessment
• Surgical-site infection (SSI)
• Factors impairing healing (perfusion, nutrition, glycaemic control, smoking)
• Aseptic dressing technique
• Wound dehiscence
• Inflammation and tissue repair

Mechanisms

Wound healing proceeds through overlapping phases: haemostasis stops bleeding through clotting; inflammation clears debris and microbes; proliferation rebuilds tissue through new blood vessels, fibroblasts, and collagen deposition with re-epithelialisation; and remodelling matures and strengthens the scar over weeks to months. Surgical wounds closed edge-to-edge heal by primary intention, while open or contaminated wounds heal by secondary or tertiary intention. The process depends on adequate tissue perfusion and oxygenation, balanced inflammation and reactive oxygen species signalling, and metabolic substrate for tissue synthesis; infection, poor perfusion, uncontrolled hyperglycaemia, malnutrition, and smoking impair these steps and delay healing. Surgical-site infection disrupts the inflammatory and proliferative phases and can lead to dehiscence.

Clinical relevance

Surgical-site infection and impaired wound healing are among the more common and costly surgical complications, and recognising the conditions that support or undermine healing is central to perioperative nursing. Understanding the biology clarifies why perfusion, nutrition, glycaemic control, and aseptic technique are emphasised in wound care. This entry is a reference overview of healing and care principles and is not a basis for managing any individual patient's wound or selecting dressings or medications.

Epidemiology

Surgical-site infections are among the most frequent healthcare-associated infections in surgical patients and a leading target of prevention guidelines, which address measures spanning the perioperative period.

History

The understanding of wound repair advanced from descriptive surgical observation to a cellular and molecular model over the twentieth and twenty-first centuries, with the staged phases of healing and the roles of growth factors, inflammation, and reactive oxygen species progressively characterised. In parallel, evidence-based guidelines from bodies such as the WHO and the U.S. Centers for Disease Control and Prevention consolidated measures to prevent surgical-site infection.

Key figures

• Geoffrey Gurtner
• Sabine Eming
• Paul Martin

Seminal works

• gurtner-2008
• eming-2017
• berrios-torres-2017

Frequently asked questions

What are the phases of wound healing?

Healing proceeds through overlapping phases: haemostasis (clotting to stop bleeding), inflammation (clearing debris and microbes), proliferation (new tissue, blood vessels, and collagen with re-epithelialisation), and remodelling (maturation and strengthening of the scar).

What factors can delay surgical wound healing?

Healing can be delayed by surgical-site infection, poor tissue perfusion or oxygenation, uncontrolled high blood sugar, inadequate nutrition, and smoking, among other factors; these impair one or more phases of the repair process.