3D Mesh Repair for a Large Incisional Hernia in a Post-Bariatric Patient with a History of Multiple Failed Open Repairs
Patient Information
Age
47 years
Gender
Female
Occupation
School administrator
City
Mysuru, Karnataka
Presenting Complaint
Large, symptomatic midline bulge at a previous bariatric surgery site with recurrent pain and restricted mobility
Diagnosis
Large incisional hernia (defect 12 x 9 cm) following bariatric surgery, with two prior failed open mesh repairs
Duration of Issue
Progressive enlargement over 26 months; pain worsening over 8 months
Previous Treatment
Open Roux-en-Y gastric bypass (2018); first open flat-mesh incisional hernia repair (2021); second open suture-only repair attempt (2022)
Date of Procedure
April 2025
Outcome
Excellent: tension-free repair achieved, no intraoperative complications, discharged within 48 hours
Patient identity withheld in accordance with confidentiality guidelines.
The Problem
Condition
The patient presented with a large midline incisional hernia measuring approximately 12 by 9 centimetres, located along the prior laparotomy scar from her bariatric procedure, and was referred to General and Laparoscopic Surgeon Dr. Rajeev Premnath for definitive management. She had previously undergone two open repair attempts: the first using a flat polypropylene mesh (2021, elsewhere) and the second a suture-only repair after mesh infection necessitated explantation (2022). Both repairs had failed within eighteen months of the respective procedures.
On examination, the defect was widely palpable with loss of abdominal domain and thinning of the overlying skin. CT imaging confirmed a fascial defect of 11.8 by 8.6 centimetres with herniation of omental fat and a loop of small bowel, with multiple adhesions visible between the mesh remnants and the underlying bowel. The patient’s body mass index at presentation was 29.1, substantially reduced from a pre-bariatric BMI of 46.7, placing her in the category of post-bariatric patients with anatomically compromised abdominal wall musculature.
Functional Impact
The progressive enlargement of the hernia had severely curtailed the patient’s professional and personal life. She was unable to stand for extended periods, experienced significant discomfort on bending or lifting, and had reduced her dietary intake out of fear of intestinal obstruction. The two prior failed repairs had left her apprehensive about further surgery, and a 26-month interval between the second failure and this consultation reflected both her hesitation and a lack of access to appropriate specialist care.
Consultation and Treatment Plan
Pre-Operative Assessment
A structured evaluation was undertaken by Dr. Rajeev Premnath, with attention to anatomical complexity, the metabolic consequences of prior bariatric surgery, and tissue quality following two failed repairs.
- Clinical examination to assess defect margins, skin viability, and residual fascial integrity
- CT abdomen and pelvis with contrast for defect mapping and bowel adhesion characterisation
- Nutritional assessment in view of post-bariatric absorption deficits: albumin, vitamin D, iron, and B12 levels evaluated
- Pre-operative physiotherapy consultation to optimise abdominal muscle tone and respiratory function
- Anaesthetic fitness assessment with review of cardiorespiratory reserve
- Counselling regarding the surgical plan, expected recovery, and probability of a durable repair
Clinical Rationale
Following deliberation, open preperitoneal repair using a large three-dimensional contoured polypropylene mesh with selective component separation was chosen. This case fell within the high-risk hernia surgery category by virtue of multiple failed prior repairs, adhesion burden, and post-bariatric abdominal wall changes. The decision was supported by the following considerations:
- The 3D mesh architecture provides multi-plane coverage across the entire defect and its margins, reducing mechanical stress concentration at any single point
- Preperitoneal placement positions the new mesh in a virgin tissue plane, avoiding the scarred anterior field of the prior repairs and the area of mesh remnant and adhesions
- Anterior component separation through bilateral release of the external oblique aponeurosis was incorporated to achieve midline fascial approximation without tension
- Open approach selected over laparoscopic repair given the extensive adhesion burden and the need for direct visualisation during adhesiolysis and mesh remnant removal
- General anaesthesia administered given the anticipated duration and complexity of the procedure
Procedure Details
Surgical Overview
- Pre-operative antibiotic prophylaxis administered; patient positioned supine with sequential compression devices in situ
- Midline incision through previous scar, with careful skin flap elevation to preserve vascularity
- Systematic adhesiolysis to free adherent small bowel and omentum from mesh remnants and the anterior abdominal wall
- Infected residual mesh fragments identified and excised entirely; bowel integrity confirmed with no enterotomy
- Bilateral anterior component separation performed with release of the external oblique aponeurosis approximately 1.5 centimetres lateral to the linea semilunaris on each side
- Medial fascial edges approximated in the midline with slowly absorbable interrupted sutures; tension-free closure confirmed
- Large preperitoneal pocket developed to accommodate the 3D mesh with a minimum 4-centimetre overlap beyond all defect margins
- Three-dimensional contoured polypropylene mesh (20 x 15 cm) placed with intraperitoneal fixation sutures at the periphery; no tacker fixation required
- Two closed-suction drains placed in the subcutaneous space; layered wound closure with fine monofilament suture
Procedure Facts
| Duration | Approximately 145 minutes |
| Anaesthesia | General anaesthesia |
| Implant Used | Three-dimensional contoured polypropylene mesh, 20 x 15 cm |
| Approach | Open preperitoneal repair with bilateral anterior component separation |
| Additional Steps | Full adhesiolysis; excision of infected mesh remnants |
| Intraoperative Complications | None |
| Hospital Stay | 48 hours post-procedure |
Post-Operative Results
The procedure achieved complete tension-free fascial closure with circumferential mesh overlap across the full extent of the defect. The patient was ambulated at 18 hours post-operatively and tolerated oral fluids from the morning of day one. Both drains were removed prior to discharge on post-operative day two. This outcome is consistent with results seen in hernia surgery performed using preperitoneal mesh techniques with component separation.
At the six-week follow-up, the abdominal wall contour had normalised, there was no palpable defect, and the wound had healed with primary intention. At the three-month review, the patient reported full return to professional duties with no pain on standing or activity.
| Outcome Metric | Result |
| Anatomical Repair | ✔ Tension-free midline closure with complete mesh coverage |
| Defect Recurrence | ✔ None at six-week and three-month review |
| Wound Healing | ✔ Primary closure without complication |
| Nutritional Stability | ✔ Post-bariatric parameters maintained within acceptable range |
| Patient Satisfaction | ✔ Very high; full restoration of occupational and physical function |
| Complications | ✔ None; no seroma, haematoma, wound dehiscence, or infection |
Post-Procedure Care and Recovery
Instructions Issued
- Abdominal binder to be worn continuously for six weeks, removing only for bathing
- Oral analgesia for seven days; prophylactic antibiotic cover for ten days
- Nutritional supplementation continued per post-bariatric protocol; protein intake monitored closely
- No lifting beyond three kilograms for eight weeks; no strenuous activity for twelve weeks
- Drain site care and wound inspection instructions provided in writing
- Scheduled follow-up at two weeks, six weeks, three months, and six months
Recovery Timeline
| Timeframe | Expected Milestones |
| Day 1 to 3 | Supervised ambulation; drain management; oral intake resumed; pain controlled with analgesia |
| Week 1 to 2 | Sutures reviewed; wound assessed; sedentary activities permitted |
| Week 4 to 6 | Abdominal binder continued; light domestic activity resumed; mesh integration progressing |
| Month 3 | Moderate physical activity reintroduced; professional duties fully resumed |
| Month 6 | Final structural review; durable repair confirmed; long-term dietary and activity guidance reinforced |
Patient Feedback
The following feedback was recorded during the three-month clinical follow-up. It represents a verified clinical observation and is not derived from any public review platform.
“After two failed surgeries, I had stopped believing that my problem could be fixed. I was in constant discomfort and felt limited in everything I did, at work, at home, and even just moving around. Dr. Rajeev Premnath took a great deal of time to explain exactly why the earlier repairs had not held and what would be done differently this time. The recovery was more involved than the previous times, but I was well-prepared for it. Today, at three months, I feel like myself again. The hernia is gone, my stomach looks normal, and I am back at school full-time.”