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Updated: Mar 1, 2026

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold
Published on: October 23, 2015
Initial Experience With Biologic Polymer Scaffold (Poly-4-hydroxybuturate) in Complex Abdominal Wall Reconstruction
Joseph F Buell1, David Sigmon, Christopher Ducoin
1*Tulane Abdominal Transplant Institute, Tulane University School of Medicine, New Orleans, LA†Tulane University School of Medicine, New Orleans, LA‡Department of Surgery, Tulane University School of Medicine, New Orleans, LA§Department of Surgery, Louisiana State University School of Medicine, New Orleans, LA¶A. B. Freeman School of Business, Tulane University, New Orleans, LA||Department of Economics, Tulane University, New Orleans, LA.
The absorbable polymer scaffold poly-4-hydroxybutyrate (P4HB) shows promise in complex abdominal wall reconstruction. P4HB demonstrated fewer complications and reherniations, along with significant cost savings, compared to traditional porcine cadaveric mesh.
Area of Science:
- Surgical innovation in reconstructive procedures.
- Biomaterials science and medical device development.
Background:
- Complex abdominal wall reconstruction often utilizes cadaveric biologic scaffolds.
- Cadaveric mesh is associated with high costs and complications like seroma, infection, and hernia recurrence.
- Limited data exist on the efficacy of cadaveric mesh in high-risk surgical wounds.
Purpose of the Study:
- To evaluate the clinical utility of the novel absorbable polymer scaffold, poly-4-hydroxybutyrate (P4HB).
- To compare the outcomes of P4HB with traditional porcine cadaveric mesh in complex abdominal wall reconstruction.
Main Methods:
- Retrospective analysis of patients undergoing complex abdominal wall reconstruction.
- Comparison between a cohort treated with P4HB scaffold and a contiguous cohort treated with porcine cadaveric mesh.
- Statistical analysis using SAS 9.3 and Stata 12, including multivariate analysis and cost-effectiveness evaluation.
Main Results:
- The P4HB group (n=31) showed significantly shorter drain times (10.0 vs 14.3 days) and fewer complications (22.6% vs 40.5%) compared to the porcine mesh group (n=42).
- Reherniation rates were lower in the P4HB group (6.5% vs 23.8%).
- Multivariate analysis indicated P4HB was associated with better outcomes regarding infection, complications, and hernia recurrence, and offered a cost advantage of $9570.07 per case.
Conclusions:
- Early clinical experience suggests P4HB is a viable alternative to porcine cadaveric mesh for complex abdominal wall reconstruction.
- P4HB demonstrates superior clinical performance and value-based benefits.
- The absorbable polymer scaffold P4HB offers a promising option for improving patient outcomes and reducing healthcare costs.

