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Published on: December 23, 2022
What are the influencing factors on the outcome in lateral incisional hernia repair? A registry-based multivariable
S Schaaf1, A Willms2, D Adolf3
1Department of General, Visceral and Thoracic Surgery, German Armed Forces Central Hospital Koblenz, Rübenacher Str. 170, 56072, Koblenz, Germany.
Introduction:
Incisional hernias following lateral abdominal wall incisions with an incidence of 1-4% are less common than following medial incisions at 14-19%. The proportion of lateral incisional hernias in the total collective of all incisional hernias is around 17%. Compared to midline defects, lateral incisional hernias are more difficult to repair because of the more complex anatomy and localization. A recent systematic review identified only 11 publications with a total of 345 patients reporting on lateral incisional hernia repair. Therefore, further studies are urgently needed.
Methods:
Multivariable analysis of the data available for 6,306 patients with primary elective lateral incisional hernia repair was performed to assess the confirmatory pre-defined potential influence factors and their association with the perioperative and one-year follow-up outcomes.
Results:
In primary elective lateral incisional hernia repair, open onlay, open IPOM and suture procedures were found to have an unfavorable effect on the recurrence rate. This was also true for larger defect sizes and higher BMI. A particularly unfavorable relationship was identified between larger defect sizes and perioperative complications. Laparoscopic-IPOM presented a higher risk of intraoperative, and open sublay of postoperative, complications. The chronic pain rates were especially unfavorably influenced by the postoperative complications, preoperative pain and female gender.
Conclusion:
Open-onlay, open IPOM and suture procedures, larger defect sizes, female gender, higher BMI, preoperative pain and postoperative complications are associated with unfavorable outcomes following primary elective lateral incisional hernia repair.
