Understanding Complex Abdominal Wall Hernias
The abdominal wall is made of muscle, fascia, fat and skin that work together to support the abdomen and protect the structures within it. An incisional or ventral hernia occurs when tissue pushes through an opening or weakened area in that wall. Previous operations, wound complications, infection, prior mesh, multiple hernias and repeated repairs can make reconstruction more difficult.
Some patients have a wide defect that prevents the abdominal wall from being closed comfortably at the midline. Others have scarred, damaged or missing tissue, recurrent hernias or what surgeons describe as loss of domain, in which a substantial portion of the abdominal contents remains outside its usual abdominal cavity. These situations may require more extensive planning than a routine hernia repair.
How Component Separation Works
During component separation, selected layers of abdominal muscle and fascia are carefully released. This provides additional movement so the tissues on each side can be advanced toward the center of the abdomen with less tension.
Depending on the patient’s condition, the overall operation may also involve:
- Repairing one or more hernia defects
- Separating scar tissue or intestine from the abdominal wall
- Removing, revising or replacing prior mesh
- Reinforcing the reconstruction with surgical mesh
- Removing damaged or poorly healed tissue
- Reconstructing soft-tissue coverage over the repair
- Closing or revising a previous abdominal scar
Not every patient requires every part of this operation. Component separation describes one reconstructive technique within a larger, individualized abdominal wall reconstruction plan.
The Role of the Reconstructive Plastic Surgeon
Complex abdominal wall reconstruction is about more than covering a hole or improving the appearance of the abdomen. The reconstructive goals may include restoring durable tissue coverage, reducing excessive tension on the closure, re-establishing abdominal wall continuity and considering the resulting abdominal contour.
When two surgeons participate, their work is coordinated as part of one operative plan. The general surgeon may address the internal hernia repair and structures within the abdomen, while Dr. Capuano reconstructs and closes the abdominal wall and surrounding soft tissue. The exact division of care depends on the patient and the planned procedure.
Who May Be Evaluated for Component Separation?
An evaluation may be appropriate for someone with:
- A large incisional or ventral hernia
- A recurrent hernia after one or more previous repairs
- Multiple abdominal wall hernias
- A hernia associated with weakened, scarred or missing tissue
- Prior mesh complications or an infected surgical site
- An abdominal wall that cannot be closed without excessive tension
- A complex wound requiring durable soft-tissue coverage
- A planned hernia repair for which reconstructive assistance has been recommended
Component separation is not the correct treatment for every hernia. Some patients can be treated with a less extensive repair, while others may need a different reconstruction technique.
Planning and Preparing for Surgery
Evaluation includes a physical examination, review of previous operative reports, a full work up and evaluation of pre admission tests and assessment of imaging such as a CT scan. Dr. Capuano and the other members of the surgical team will consider the size and location of the defect, tissue quality, prior mesh, previous infections, medical conditions and the patient’s overall ability to heal.
Preparation includes improving blood-sugar control, stopping nicotine use, addressing nutrition, reaching an appropriate weight or treating an active infection. These measures do not eliminate surgical risk, but they may help reduce preventable wounds and medical complications.
Recovery After Abdominal Wall Reconstruction
Recovery from component separation is generally more involved than recovery from a routine hernia repair. A hospital stay is often required, although the length of stay varies with the extent of surgery and the patient’s health. Temporary surgical drains, an abdominal support garment or other postoperative measures will be recommended.
Walking usually begins early under the care team’s direction. Heavy lifting, strenuous exercise and activities that place pressure on the abdominal wall must be restricted until the surgeons determine that healing is sufficiently advanced. Patients receive individualized instructions for incision care, medications, nutrition, activity and follow-up.
Risks and Realistic Expectations
Potential risks include bleeding, infection, fluid collection, delayed wound healing, skin or soft-tissue complications, blood clots, anesthesia complications, injury to surrounding structures, mesh-related problems, changes in abdominal contour and recurrence of the hernia. Additional treatment or surgery may be necessary if a complication or recurrence develops.
Component separation may make reconstruction possible in an abdomen that is difficult to close using a simpler approach, but it cannot guarantee that a hernia will never return. The likely benefits, limitations and risks must be evaluated for each patient.
Requesting an Evaluation
Patients may contact the Northern Center for Plastic Surgery directly or be referred by a general surgeon, hernia specialist or another physician. Bringing previous operative reports, implant or mesh information and recent imaging can help the team understand what has already been done and what reconstructive options may be available.
