RISK FACTOR STRATIFICATION AND EARLY DETECTION OF INCISIONAL HERNIAS AFTER CESAREAN AND OPEN GYNECOLOGIC PROCEDURES: A PROSPECTIVE OBSERVATIONAL STUDY

  • Muhammad M Memon 1. Qassim University, College of Medicine, Department of Surgery, Unayzah, Kingdom of Saudi Arabia; 2. Bin Tayyab Medical Complex (BTMC), Department of Surgery, Hyderabad, Sindh, Pakistan
  • Sajad Ahmad Salati Qassim University, College of Medicine, Department of Surgery, Unayzah,, Kingdom of Saudi Arabia
  • Zaheera Saadia Qassim University, College of Medicine, Department of Gynecology, Unayzah, Kingdom of Saudi Arabia
Keywords: Incisional hernia, Cesarean section, gynecologic surgery, risk factors, prospective study, obesity, surgical site infection

Abstract


Background: Incisional hernia is a major complication of abdominal surgery, leading to pain, functional impairment, and increased healthcare costs. This study aimed to identify and rank risk factors for incisional hernia in patients undergoing Cesarean section or open gynecologic surgery, and to evaluate strategies for early detection.

Methods: From January 2023 to June 2025, a prospective observational study enrolled 200 women, each followed for 12 months. Half of the women underwent Cesarean section (n=100) and the other half underwent open gynecologic surgery (n=100). Data were collected on patient demographics, body mass index, comorbidities, surgical details, and complications. The primary outcome was the incidence of incisional hernia within one year, assessed by clinical examinations at 6 weeks, 6 months, and 12 months.

Results: The overall incidence of incisional hernia was 8.0% (16/200), with 6.0% (6/100) after Cesarean section and 10.0% (10/100) after open gynecologic procedures. Multivariable analysis identified independent risk factors: higher body mass index (adjusted odds ratio 1.12 per unit, 95% confidence interval 1.05–1.19, p<0.001), vertical incision (odds ratio 4.10, 95% CI 1.75–9.60, p=0.001), postoperative wound infection (odds ratio 5.22, 95% CI 2.15–12.67, p<0.001), and history of two or more prior Cesarean sections (odds ratio 3.85, 95% CI 1.42–10.45, p=0.008). Continuous fascial closure was protective (odds ratio 0.42, 95% CI 0.20–0.88, p=0.022). Early patient-reported symptoms preceding diagnosis included a palpable bulge (75%), persistent pain (62.5%), and discomfort during activity (50%).

Conclusion: Higher body mass index, vertical incisions, wound infection, and multiple prior Cesarean sections are significant risk factors for incisional hernia. Using transverse incisions and continuous fascial closure, when possible, together with vigilant wound care and patient education on self-examination for early symptoms, can help reduce risk and enable early detection in high-risk patients.

References

Söderbäck H, Gunnarsson U, Hellman P, Sandblom G. Incisional hernia after surgery for colorectal cancer: a population-based register study. Int J Colorectal Dis. 2018;33(10):1411-7. doi: 10.1007/s00384-018-3124-5.

Fischer JP, Basta MN, Mirzabeigi MN, Bauder AR, Fox JP, Drebin JA, et al. A risk model and cost analysis of incisional hernia after elective, abdominal surgery based upon 12,373 cases: The case for targeted prophylactic intervention. Ann Surg. 2016;263(5):1010–7. doi: 10.1097/SLA.0000000000001394.

Shand AW, Chen JS, Schnitzler M, Roberts CL. Incisional hernia repair after caesarean section: a population-based study. Aust NZJ Obstet Gynaecol. 2015;55(2):170-5. doi: 10.1111/ajo.12270.

Paulsen CB, Zetner D, Rosenberg J. Incisional hernia after cesarean section: A systematic review. Eur J Obstet Gynecol Reprod Biol. 2020;244:128-33. doi: 10.1016/j.ejogrb.2019.11.010.

Aabakke AJ, Krebs L, Ladelund S, Secher NJ. Incidence of incisional hernia after cesarean delivery: a register-based cohort study. PLoS One. 2014;9(9):e108829. doi: 10.1371/journal.pone.0108829.

Bewö K, Österberg J, Löfgren M, Sandblom G. Incisional hernias following open gynecological surgery: a population-based study. Arch Gynecol Obstet. 2019;299(5):1313-9. doi: 10.1007/s00404-019-05069-0.

Franchi M, Ghezzi F, Buttarelli M, Tateo S, Balestreri D, Bolis P. Incisional hernia in gynecologic oncology patients: a 10-year study. Obstet Gynecol. 2001;97(5 Pt 1):696-700. doi: 10.1016/s0029-7844(01)01192-9.

Spear K, Davenport DL, Butler L, Plymale M, Roth JS. Comparison of incisional hernia rates between general and gynecological surgery procedures. Medicina (Kaunas). 2025;61(3):435. doi: 10.3390/medicina61030435.

Sanders DL, Pawlak MM, Simons MP, Aufenacker T, Balla A, Berger C, et al. Midline incisional hernia guidelines: the European Hernia Society. Br J Surg. 2023;110(12):1732-68. doi: 10.1093/bjs/znad284.

Kisielinski K, Conze J, Murken AH, Lenzen NN, Klinge U, Schumpelick V. The Pfannenstiel or so called "bikini cut": still effective more than 100 years after first description. Hernia. 2004;8(3):177–81. doi: 10.1007/s10029-004-0210-0.

Deerenberg EB, Henriksen NA, Antoniou GA, Antoniou SA, Bramer WM, Fischer JP, et al. Updated guideline for closure of abdominal wall incisions from the European and American Hernia Societies. Br J Surg. 2022;109(12):1239-50. doi: 10.1093/bjs/znac302.

Guitarte C, Grant J, Zhao H, Wang S, Ferriss JS, Hernandez E. Incisional hernia formation and associated risk factors on a gynecologic oncology service: an exploratory analysis. Arch Gynecol Obstet. 2016;294(4):805-11. doi: 10.1007/s00404-016-4100-3.

Thorup T, Tolstrup MB, Gögenur I. Reduced rate of incisional hernia after standardized fascial closure in emergency laparotomy. Hernia. 2019;23(2):341-6. doi: 10.1007/s10029-019-01893-0.

Berrevoet F. Prevention of incisional hernias after open abdomen treatment. Front Surg. 2018;5:11. doi: 10.3389/fsurg.2018.00011.

Juvany M, Hoyuela C, Trias M, Carvajal F, Ardid J, Martrat A. Impact of surgical site infections on elective incisional hernia surgery: a prospective study. Surg Infect. 2018 ;19(3): 339-44doi: 10.1089/sur.2017.233.

Dias Rasador AC, Mazzola Poli de Figueiredo S, Fernandez MG, Dias YJM, Martin RRH, da Silveira CAB, et al. Small bites versus large bites during fascial closure of midline laparotomies: a systematic review and meta-analysis. Langenbecks Arch Surg. 2024;409(1):104. doi: 10.1007/s00423-024-03293-0.

van Ramshorst GH, Nieuwenhuizen J, Hop WC, Arends P, Boom J, Jeekel J, et al. Abdominal wound dehiscence in adults: development and validation of a risk model. World J Surg. 2010;34(1):20-7. doi: 10.1007/s00268-009-0277-y.

Aylia FA, Khirie S, Steinberg D. Incisional hernia repair during cesarean section. Cureus. 2022;14(4):e24121. doi: 10.7759/cureus.24121.

Sherer DM, Zinn H, Papavlassopulos A, Thompson M, Benton L, Filipovic A, et al. Early postpartum unilateral vulvar edema leading to diagnosis of a Pfannenstiel incisional hernia following cesarean delivery. Radiol Case Rep. 2024;19(12):6343-6. doi: 10.1016/j.radcr.2024.08.133.

Published
2025/10/31
Section
Original article