Citation, DOI and article data
Incisional hernias (alternative plural: herniae) are relatively common and along with parastomal hernias, umbilical hernias, paraumbilical hernias, and Spigelian hernias, they are usually anterior abdominal hernias.
Incisional hernias usually develop within a few months of surgery, but a small proportion can remain clinically silent for years. They typically occur after laparotomy with rates of ~2-20% 5.
Numerous risk factors for developing an incisional hernia have been identified 4:
- preoperative factors: increasing age, female gender, BMI >25, increasing thickness of subcutaneous fat based on CT, preoperative chemotherapy
- intraoperative factors: midline incision, contaminated or infected wound noted during procedure, intraoperative blood loss
- postoperative factors: surgical site infection
Incisional hernias occur most frequently through previous laparotomy scars (other incisional hernias are possible, such as a lung hernia). Widening or dehiscence of the scar allows intra-abdominal contents to herniate into the subcutaneous tissues.
Treatment and prognosis
Current literature endorses that surgical repair for incisional hernia is taken up to cause improvement in the quality of life of patients 5.
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