Definition | Causes | Risk Factors | Symptoms | Diagnosis | Treatment | Prevention

Definition

Wound dehiscence is the parting of the layers of a surgical wound. Either the surface layers separate or the whole wound splits open. This is a serious condition and requires care from your doctor.

Causes

Wound dehiscence varies depending on the kind of surgery you have. The following is a list of generalized causes:

  • Infection at the wound
  • Pressure on sutures
  • Sutures too tight
  • Injury to the wound area
  • Weak tissue or muscle at the wound area
  • Incorrect suture technique used to close operative area
  • Poor closure technique at the time of surgery
  • Use of high-dose or long-term corticosteroids
  • Severe vitamin C deficiency—scurvy

Wound Infection

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Risk Factors

Factors that may increase your chance of wound dehiscence include:

  • Being overweight
  • Increasing age
  • Poor nutrition
  • Diabetes
  • Smoking
  • Malignant growth
  • Presence of prior scar or radiation at the incision site
  • Non-compliance with post-operative instructions (such as early excessive exercise or lifting heavy objects)
  • Surgical error
  • Increased pressure within the abdomen, which can occur with fluid accumulation ascites, inflamed bowel, or severe coughing, straining, or vomiting
  • Long-term use of corticosteroid medications
  • Other medical conditions, such as diabetes, kidney disease, cancer, immune problems, chemotherapy, or radiation therapy

Symptoms

Wound dehiscence may cause:

  • Bleeding
  • Pain
  • Swelling
  • Redness
  • Fever
  • Broken sutures
  • Open wound

Diagnosis

Your doctor will ask about your symptoms and examine the surgical area. Tests may include the following:

Laboratory tests, such as:

  • Wound and tissue cultures to determine if there is an infection
  • Blood tests to determine if there is an infection

Imaging tests, such as:

Treatment

Treatment may include:

  • Antibiotics if an infection is present or possible
  • Frequent changes in wound dressing to prevent infection—when appropriate
  • Wound exposure to air to accelerate healing and prevent infection, and allow growth of new tissue from below—when appropriate
  • Surgery to:
    • Remove contaminated and/or dead tissue
    • Resuture the wound
    • Place a temporary or permanent piece of mesh to bridge the gap in the wound

Prevention

To reduce your chance of wound dehiscence:

  • When appropriate, have antibiotic therapy prior to surgery
  • When appropriate, have antibiotic therapy after surgery
  • When using wound dressing, maintain light pressure on wound
  • Keep wound area clean
  • Comply with post-operative instructions