Background: Large Ventral Hernia (VH) reconstruction is a surgical challenge. Component Separation (CS) combined with lipoabdominoplasty (LA) enhances the contour deformity of the entire musculofascial layer. Aim of the study: Evaluation of the feasibility, early postoperative outcomes and possible complications of combining LA with CS in the repair of large VHs. Methods: This prospective study included twenty multiparous females subjected to large VH repair by combined CS and LA at Minia University Hospitals from July 2023 to February 2025. Primary study outcomes were operative time and hernia recurrence, while secondary outcomes included length of hospital stay, readmission rate and wound complications. Results: Mean age was 37.7±7.7 years and Body Mass Index (BMI) ranged between 25.5 and 35 kg/m2. Mean operative time was 246±43.2 minutes. Mean length of hospital stay was 6.7±2.4 days. Overall complication rate was 25% (n = 5), including wound dehiscence, wound infection, hematoma, hypertrophic scar formation, umbilical necrosis, dog ear deformity and skin necrosis. No hernia recurrence or mortality were reported during the period of follow up (12 months). Conclusion: Hernio-abdominoplasty with component separation is an effective technique for repair of large ventral hernias with acceptable safety profile. We recommend this combined approach in selected patients but further studies are needed to verify long-term outcomes.
A wide midline Abdominal Wall Defect (AWD) is a difficult surgical challenge [1]. It commonly results from herniation after abdominal surgery (incisional hernia) but can also occur due to trauma, congenital anomalies or chronic increase in the intra-abdominal pressure [2,3].
Ventral Hernia (VH) is a defect in the abdominal wall fascia, excluding inguinal and hiatal hernias [4]. It is estimated that approximately 25% of individuals are either born with or will develop a VH during their lifetime [5]. These hernias occur in the anterior abdominal wall and include primary VHs (such as epigastric, umbilical, Spigelian and lumbar hernias) as well as most incisional hernias, including parastomal hernias. The European Hernia Society classifies VHs with a defect width greater than 10 cm as complex hernias [6].
The Component Separation (CS) technique, initially described by Albanese in 1951 [7] and later refined by Ramirez et al. [8] in 1990, involves the complete bilateral division of the external oblique aponeurosis, allowing the recti muscles to be mobilized closer to the midline.
VHs are often linked to abdominal wall laxity, particularly in females [9]. In such cases, a combined repair of the AWD and abdominoplasty has been proposed to enhance the overall musculofascial contour, remove excess skin and ultimately improve quality of life [10,11].
Although the combined use of abdominoplasty and CS in VH repair has been proposed, evidence remains limited regarding its safety profile, readmission and complication rates.
The aim of this study is evaluation of the feasibility, early postoperative outcomes and possible complications of combining LA with CS in the repair of large VHs.
Patients: In this prospective study, twenty female patients were subjected to Ventral Hernia (VH) repair using combined Component Separation (CS) and lipoabdominoplasty (LA) at Minia University Hospital, Egypt, between June 2023 and February 2025, following ethical approval and informed consent.
Eligible patients were adult females (18-50 years) fit for surgery, with VH defects 5-10 cm and abdominal wall redundancy. Exclusion criteria included age below 18 and above 50 years, BMI more than 35 kg/m2, smoking, pregnancy or planned pregnancy, uncontrolled co-morbidities, recurrent/complicated/multiple hernias, active drug abuse or infection increasing surgical risk.
Detailed history was obtained, covering demographics, comorbidities and hernia- related history. Clinical data included BMI, hernia site, skin laxity, subcutaneous fat and myofascial weakness. Defect size was assessed preoperatively by physical examination, ultrasonography and Computed Tomography (CT) (Figure 1) and confirmed intraoperatively. Routine labs and chest X-ray were done for all patients.
Figure 1: Axial CT Scan of the Abdomen Showing a Ventral Hernia with the Size of the Defect Measuring 6.8 cm
Preoperative Marking
Patients were marked in the standing position. Landmarks include the midline, abdominal rolls, iliac crests, current and planned umbilical positions and a curved lower incision approximately 7 cm above the introitus. The superior excision limit was estimated by skin pinching and liposuction areas (flanks, abdominal flap) were marked (Figure 2).
Figure 2: Preoperative marking
1: Area of complete dissection, 2: Area of discontinuous dissection, 3: Area for excision, 4: Area common for dog ear formation
Venous thromboembolism (VTE) prophylaxis with leg compression bandages and Enoxaparin 40 IU was given to high risk patients. One gram of I.V. ceftriaxone was given at induction of anesthesia.
Technique:
After hemostasis, stay sutures help to distribute tension. A lateral suction drain exits through the upper thigh. Scarpa’s fascia is closed under tension to protect deeper layers. The upper flap is advanced medially to remove dog ears, followed by deep dermal absorbable sutures. Skin is closed with subcuticular Prolene 4-0, adding simple interrupted stitches if necessary (Figure 3 and 4).
Figure 3(a-c): (a) Clinical Photographs Illustrating Preoperative Anterior and (b-c) Lateral views of 28-year-old female with prior history of bariatric surgery presenting with a large paraumbilical hernia
(hernia defect size = 7 cm) accompanied by significant redundancy of the anterior abdominal wall
Figure 4(a-d): Posterior Component Separation in the Same Patient in Figure 3, (a) Hernia Sac is Excised, (b) A Retro-Rectus Pocket is Created, (c) Posterior Rectus Sheath and Peritoneum are Closed and (d) Mesh Placed in the Retro-Rectus Space
Postoperative Management
Early ambulation from the first night reduces VTE risk. Parenteral antibiotics are continued for 1 week. Drains are removed once output is less than 30 cc/24 hours, usually by the 5th to the 7th postoperative day (POD). Patients are advised to wear abdominal binder from POD 0 to 6 weeks. Follow-up extends to 12 months, assessing complications, recurrence and contour deformities. Outpatient visits are scheduled at 1 week, 2 weeks and 1, 2, 6, 9 and 12 months. All postoperative follow-up assessments were conducted by the operating surgical team, including the principal investigator and senior residents, using a standardized clinical evaluation protocol. Figure 5 shows immediate and late (6 months) postoperative results in one of our patients. The primary outcomes of our study were operative time and hernia recurrence; secondary outcomes included hospital stay, readmission and wound complications.
Figure 5(a-d): Postoperative result in the same case, (a) Immediate Postoperative Result (Site of Drain Exit is Not Shown), (b-d) Late (6 months) Postoperative Result in Anterior and Lateral Views
Statistical Analysis
Data were analyzed using SPSS 26 for windows (SPSS Inc., Chicago, IL, USA). Normality was tested with the Shapiro-Wilk test. Qualitative data were presented as frequencies and percentages, while quantitative data were shown as Mean±SD (Standard deviation) and range. Chi-square or Fisher’s exact tests assessed qualitative differences. Independent t-test compared parametric quantitative variables between two groups. Pearson correlation analyzed variable relationships. Significance was set at p-value less than 0.05.
Our study included 20 females with large VH and lax abdominal wall. As summarized in Table 1, the mean age was 37.7±7.7 years. BMI ranged between 25.5-35 kg/m2 with a mean of 31.8±3.1. Obesity class I (BMI: 30-35 kg/m2) was detected in 16 patients (80%). All patients were multipara (range: 2-5 previous deliveries).
Table 1: Baseline Characteristics of the Studied Patients
|
Parameters |
(N = 20) |
|
Age (years) Mean±SD Range |
37.7±7.7 25-50 |
|
Gender Female Male |
20 (100%) 0 (0%) |
|
BMI (kg/m2) Mean±SD Range Overweight Obese |
31.8±2.8 25.5-35 4 (20%) 16 (80%) |
|
Parity Mean±SD Range |
3.3±0.98 2-5 |
|
Type of VH Paraumbilical Epigastric |
12 (60%) 8 (40%) |
|
HTN |
3 (15%) |
|
DM |
2 (10%) |
BMI: Body Mass Index, VH: Ventral Hernia, HTN: Hypertension, DM: Diabetes Mellitus
Paraumbilical hernia was the most frequent type of hernia (12 patients, 60%), while epigastric hernia was found in 8 patients (40%). Three patients (15%) were receiving treatment for hypertension (HTN) and two patients (10%) had controlled Diabetes Mellitus (DM). The size of hernia defect ranged between 5-10 cm (mean: 6.9±1.5 cm).
After combined liposuction assisted abdominoplasty (LAA), successful fascial closure was achieved in all cases using posterior CS with a mean operative time of 246±43.2 minutes. No intraoperative complications were reported. The length of hospital stay ranged from 5-14 days and the mean time for drain removal was 5.65±0.93 days (Table 2).
Table 2: Perioperative Data of the Studied Patients
|
Parameters |
(N = 20) |
|
Size of hernia defect (cm) Mean±SD Range |
6.9±1.5 5-10 |
|
Type of abdominoplasty LAA |
20 (100%) |
|
Component separation Anterior Posterior |
0 (0%) 20 (100%) |
|
Operative time (min) Mean±SD Range |
246±43.2 180-330 |
|
Intraoperative complication No Yes |
20 (100%) 0 (0%) |
|
Length of hospital stay (days)Mean ±SD Range |
6.7±2.4 5-14 |
|
Time for drain removal (days)Mean ±SD Range |
5.65±0.93 5-7 |
LAA: Liposuction assisted abdominoplasty
As shown in Table 3, the operative time correlated positively with age (r = 0.56, p = 0.009), BMI (r = 0.72, p<0.001) and size of the hernia defect (r = 0.57, p = 0.008). The length of hospital stay correlated positively and with age (r = 0.68, p = 0.001) but not with BMI or hernia defect size.
Table 3: Correlation Between Different Perioperative Data
|
Parameters |
Age |
BMI |
Size of hernia defect |
|||
|
r |
p value |
r |
p value |
r |
p-value |
|
|
Operative time |
0.56 |
0.009* |
0.72 |
<0.001* |
0.57 |
0.008* |
|
Length of hospital stay |
0.68 |
0.001* |
0.39 |
0.08 |
0.08 |
0.71 |
R: Correlation coefficient, *Significant level at p-value <0.05
Regarding postoperative complications (POCs) in our study (Table 4), it was found that the overall complication rate was 25% (n = 5). Reported complications include wound dehiscence (15%), wound infection (15%), hematoma (15%) and hypertrophic scar formation (15%), umbilical necrosis (10%), dog ear deformity (10%) and skin necrosis (10%). No cases of hernia recurrence (detected by clinical examination or ultrasound imaging) were observed during the period of 12- months follow-up. Seroma, stitch sinus, VTE, readmission by POC or mortality were not observed during follow-up.
Table 4: Distribution of Postoperative Complications Among the Studied Patients
|
Parameters |
(N = 20) |
|
Wound dehiscence |
3 (15%) |
|
Wound infection |
3 (15%) |
|
Skin necrosis |
2 (10%) |
|
Umbilical necrosis |
2 (10%) |
|
Hematoma |
3 (15%) |
|
Dog ear |
2 (10%) |
|
Hypertrophic scar |
3 (15%) |
|
Seroma |
0 (0%) |
|
Stitch sinus |
0 (0%) |
|
Hernia recurrence |
0 (0%) |
|
VTE |
0 (0%) |
|
Overall complication rate |
5 (25%) |
VTE: Venous Thromboembolism, Percentages represent the number of total patients who experienced each specific complication. Some patients had multiple complications
Our reported 25% overall complication rate encompasses five minor and manageable events (e.g., superficial seromas resolved conservatively), with no major complications, Clavien-Dindo grade IV events (Table 5) or readmissions-yielding a severe complication rate of 0%.
Table 5: Grading of Postoperative Complications Among the Studied Patients According to the Clavien-Dindo System
|
Complication |
Management |
Clavien-Dindo Grade |
Justification |
|
Wound dehiscence |
Managed conservatively (dressings, no reoperation) |
Grade I |
No pharmacologic or surgical intervention required beyond local wound care. |
|
Superficial wound infection |
Repeated dressing and parenteral antibiotics |
Grade II |
Requires pharmacologic treatment with antibiotics. |
|
Hematoma |
Managed conservatively |
Grade I |
No pharmacologic or surgical intervention. |
|
Hypertrophic scar formation |
Conservative management (topical or steroid therapy) |
Grade I |
Minor postoperative sequela, managed conservatively. |
|
Umbilical necrosis |
Removing stitches only |
Grade I |
Minor intervention not requiring anesthesia or pharmacologic treatment. |
|
Dog ear deformity |
Secondary correction under anesthesia |
Grade IIIb |
Surgical correction under anesthesia. |
|
Skin necrosis |
Chemical debridement and healing by secondary intention |
Grade II |
Requires pharmacologic or topical chemical treatment, no surgical intervention. |
|
Skin necrosis |
Surgical debridement and secondary closure with sutures |
Grade IIIb |
Between POD 6-10, three patients (15%) developed superficial wound infection with partial dehiscence of skin and subcutaneous fat. Infection presents with erythema, swelling, tenderness and warmth and resolved with conservative management by repeated dressing and parenteral antibiotics. No persistent or mesh-related infections were observed.
On POD 7, two patients (10%) developed distal flap necrosis, presenting with blanching, coldness and poor capillary refill, followed by color changes. One patient overlapped with infection and dehiscence, requiring surgical debridement and later closure with secondary sutures. The other patient had minor suture-line necrosis, managed with chemical debridement and healing by secondary intention.
Umbilical necrosis presents in two patients (10%) on POD 2 with color changes in the umbilicus. Few sutures around the umbilicus were removed and with close follow- up until the color gradually improved, except for a small area of tissue loss that did not affect the overall shape of the umbilicus.
We noticed a significant association between DM and impaired wound healing, diabetic patients (n = 2) had significantly higher rates of wound dehiscence (100% vs. 5.6%, p = 0.01), wound infection (100% vs. 5.6%, p = 0.01), hypertrophic scars (100% vs. 5.6%, p = 0.01) and overall complication (100% vs. 22.2%, p = 0.05) compared to non- diabetics (Table 6). Moreover, skin necrosis was more frequently encountered in diabetic patients (50 vs. 5.6%, p = 0.04). Other POCs did not show statistically significant differences.
Table 6: Association Between Diabetes Mellitus (DM) and Postoperative Complications Among the Studied Patients
|
Parameters |
DM |
p-value |
|
|
No (n = 18) |
Yes (n = 2) |
||
|
Wound dehiscence |
1 (5.6%) |
2 (100%) |
0.01* |
|
Wound infection |
1 (5.6%) |
2 (100%) |
0.01* |
|
Skin necrosis |
1 (5.6%) |
1 (50%) |
0.04* |
|
Umbilical necrosis |
1 (5.6%) |
1 (50%) |
0.19 |
|
Hematoma |
2 (11.1%) |
1 (50%) |
0.28 |
|
Dog ear |
1 (5.6%) |
1 (50%) |
0.19 |
|
Hypertrophic scar |
1 (5.6%) |
2 (100%) |
0.01* |
|
Overall complication rate |
3 (16.7%) |
2 (100%) |
0.052** |
*Significant level at p-value <0.05, **Approaching significance at p-value ≈ 0.05
As shown in Table 7, patients with POCs had significantly longer length of hospital stay compared to those without for wound dehiscence (9.5±3.3 vs . 6±1.75 days, p = 0.008), wound infection (10.3±3.5 vs . 6.05±1.7 days, p = 0.003), skin necrosis (10.5±4.9 vs. 6.27±1.9 days, p = 0.01), dog ear (10±0 vs. 6.33±2.3, p = 0.04) and hypertrophic scars (10.3±3.5 vs. 6.05±1.7 days, p = 0.003). The overall complication rate was also significantly associated with prolonged hospital stay (8.8±3.1 vs. 5.7±1.47 days, p = 0.008).
Table 7: Association Between Postoperative Complications (POCs) and Length of Hospital Stay
|
Parameters |
Length of hospital stay (days) |
p-value |
|
|
Patients with no POCs |
Patients with POCs |
||
|
Wound dehiscence |
6±1.75 |
9.5±3.3 |
0.008* |
|
Wound infection |
6.05±1.7 |
10.3±3.5 |
0.003* |
|
Skin necrosis |
6.27±1.9 |
10.5±4.9 |
0.01* |
|
Umbilical necrosis |
6.6±2.4 |
7.5±3.5 |
0.64 |
|
Hematoma |
6.6±0.57 |
8.3±2.8 |
0.22 |
|
Dog ear |
6.33±2.3 |
10±0 |
0.04* |
|
Hypertrophic scar |
6.05±1.7 |
10.3±3.5 |
0.003* |
|
Overall complication rate |
5.7±1.47 |
8.8±3.1 |
0.008* |
No statistically significant association was observed between POCs and either the size of hernia defect or the operative time (p>0.05). Patients with wound infection had a significantly higher BMI (34±1 vs. 31.8±3.3, p = 0.05) compared to others. While other POCs were not directly related to BMI, the mean BMI was slightly higher in cases presenting with dog ear deformity.
The repair of large VHs remains a significant challenge for surgeons; it is usually not feasible by simple approximation of rectus muscles as the defect is often too large and excessive tension would result [12]. These hernias are often associated with rectus diastasis, myofascial weakness, skin laxity and excess subcutaneous fat [103]. Thus, performing a comprehensive hernio-abdominoplasty in a single session is rational, as it corrects all abnormalities simultaneously while aiming to reduce morbidity.
Compared to men, women often have different abdominal wall elasticity and muscle tone due to pregnancy, hormonal variations and body composition. Additionally, large VH and/or rectus diastasis, are common postpartum events. All patients enrolled in our study were females, this is consistent with some recent studies [14-16]but is not in line with others which enrolled both male and female patients [17].
Our routine technique is liposuction-assisted abdominoplasty using traditional cannula suction. This aligns with Aboelatta et al. [18], who compared laser-assisted liposuction plus abdominoplasty with conventional methods, reporting higher complication rates with the laser technique and advising against its combined use with abdominoplasty.
Posterior Component Separation (PCS) was used in all our cases, unlike Akila et al. [16], who used ACS with rectus plication. PCS enables tension-free midline closure, optimal retro-rectus mesh placement and preservation of perforator vessels to lower flap necrosis risk compared to Anterior Component Separation (ACS). Studies reported fewer complications, lower recurrence rates, shorter recovery and less surgical site infection after PCS [19,20].
Surgeons have long avoided the combination of abdominal remodeling with hernia repair due to concerns about increased morbidity and extended operative time [21-23]. The American Society of Plastic Surgery Patient Safety Committee recommends elective surgeries be completed within four hours [24].
Despite these combined procedures in one session, we maintained a mean operative time of 246 minutes (4.1 hours), supporting the feasibility of combined approach without surpassing recommended operative time. A similar study by Erfan and co-authors reported a shorter mean operative time (184±28.8 minutes, range 150-240 minutes) compared to our study [15].
The mean length of hospital stay in our study was 6.7±2.4 days (range: 5-14 days). This is longer than the 3-day mean reported by Erfan and co-authors (1-5 days) [15] but shorter than the 8.7-day mean reported by Vetrone and colleagues (4-31 days) [25]. Patients with wound complications in our study had prolonged hospital stay. This aligns with findings of other studies reporting extended hospitalization in cases of wound infection [26].
Combined abdominoplasty and VH repair was a topic of debate. Shubinets et al. [27] reported lower hernia recurrence but more early complications and higher healthcare costs. Conversely, two recent studies showed this technique to be safe, effective across various VH defect sizes and beneficial for abdominal contouring, without added adverse events in selected patients [25,28].
Our overall complication rate was 25% with no cases of mortality, hernia recurrence or major systemic complications during follow up. Eltantawy et al. [29], reported a higher complication rate of 32%, while Erfan et al. [15] reported a 26.8% complication rate. Another study reported 16.5% complication rate, with 8.6% involving hernia recurrence [25]. Our reported rates of umbilical necrosis, skin necrosis and hypertrophic scarring are likely linked to the high BMI of our cohort, with 80% of patients being obese-a factor previously associated with elevated complication risks in similar studies [30,31].
We noticed a significant association between diabetes and wound complications, consistent with literature showing higher overall, major, minor and wound-related complications post-abdominoplasty [32]. This underscores the importance of perioperative glycemic control in these patients (glycated hemoglobin “HbA1c” below 6.5%) and multidisciplinary input to mitigate events of wound healing, with cross-reference to endocrinologist for preoperative optimization of uncontrolled cases.
In general, spontaneous evolution of skin necrosis with debridement, wound dressing and antibiotics if infection exists leads to healing by secondary intention. Skin grafting may be needed in cases with significant skin loss [33]. Hyperbaric oxygenation as an adjuvant therapy has been proposed to accelerate the healing process [34]. Negative Pressure Wound Therapy (NPWT) has also been found to stimulate wound neovascularization and collagen deposition in animal models [35]. However, there is no supporting evidence regarding acute operative wounds and no benefit has been described for NPWT when used in areas that have been closed by primary intention [36].
This combined approach offers safe and effective simultaneous fascial closure along with contour restoration, reduces the need for multiple hospital admissions and anesthesia exposure, shortens the recovery time and decreases overall health care costs.
Safety is operationalized as the absence of major adverse events (e.g., Clavien-Dindo grade IV complications like reoperation for infection or mesh erosion) within 30 days postoperatively, with minor events (grades I-II, such as seroma or superficial wound issues) also tracked. Effectiveness is defined as successful hernia repair, confirmed by clinical exam and imaging at 6-12 months, with no recurrence and restored abdominal wall integrity (e.g., via CT or ultrasound).
While patient-reported outcomes like satisfaction and quality of life are important in aesthetic surgery, our study's primary focus is on the technical feasibility, safety and objective clinical metrics of the combined procedure. We prioritized essential, quantifiable endpoints to guide surgical innovation in large ventral hernia cases.
Hernio-abdominoplasty with component separation is an effective technique for repair of large ventral hernias with accepted safety profile, especially in females with abdominal wall laxity. Due to low recurrence and acceptable wound complication rates, we recommend the use of this combined approach in selected patients with ventral hernia (i.e., large defect of 5-10 cm with abdominal wall laxity/diastasis especially in multiparous females, BMI less than 35 kg/m2 and optimized comorbidities as controlled diabetes mellitus). Further studies with larger sample sizes and prolonged follow-up are needed to verify long-term outcomes.
Limitations and Points of Strength
While our study has certain limitations, such as the small sample size (20 patients), absence of a control group for direct comparison and relatively short follow-up period (12 months), it also has several strengths. The prospective design of the study minimizes recall bias, strict inclusion and exclusion criteria ensure a well-defined patient population and enhance reliability of results. The use of combined clinical, ultrasound and CT-based measurements provides precise hernia defect assessment.
We acknowledge that our sample of 20 patients limits statistical power for rare events. However, this size is appropriate for an initial prospective evaluation of a combined technique in a specific patient subgroup (large VHs with aesthetic needs) yielding consistent outcomes (e.g., 100% tension-free closure, 0% recurrence at 1 year).
While we recognize that late recurrence can occur, a 12-month follow-up remains consistent for early outcomes after surgery.
Conflicts of Interest
Authors declare that they have no conflict of interest.
Ethical Approval
All patients signed informed written consent for the use of their data and photographs. They accepted and were aware about the treatment they will receive after approval of the institutional board of ethics (approval number: MUFMIRB 824:6:2023).