Long-Term Outcomes after Abdominal Wall Reconstruction with Acellular Dermal Matrix

Area of Science:

• Surgical Innovation
• Biomaterials in Surgery
• Hernia Repair Outcomes

Background:

• Long-term data on hernia recurrence after abdominal wall reconstruction (AWR) using acellular dermal matrix (ADM) is limited.
• Assessing the long-term durability of AWR with ADM is crucial for clinical practice.

Purpose of the Study:

• To evaluate the long-term durability and recurrence rates of abdominal wall reconstruction (AWR) utilizing acellular dermal matrix (ADM).
• To identify risk factors associated with hernia recurrence and surgical site occurrences (SSO) following AWR with ADM.

Main Methods:

• A single-center retrospective study of 191 patients who underwent AWR with ADM between 2005 and 2015 with a minimum 36-month follow-up.
• Kaplan-Meier analysis for recurrence-free survival; Cox and logistic regression models for risk factor analysis of hernia recurrence and SSO.

Main Results:

• The cumulative hernia recurrence rates were 11.5% at 3 years and 14.6% at 5 years.
• Predictors of recurrence included bridged repair, wound dehiscence, human cadaveric ADM, and coronary disease; component separation was protective.
• Surgical site occurrence (SSO) rate was 25.1%, associated with comorbidities, BMI ≥30 kg/m², and large defect width (>15 cm).

Conclusions:

• Acellular dermal matrix (ADM) use in abdominal wall reconstruction (AWR) is associated with significant long-term hernia recurrence rates.
• Strategies such as avoiding bridged repairs and human cadaveric ADM may enhance the durability of AWR outcomes.