Intraperitoneal adhesion is a serious problem concerning abdominal surgery. This study evaluated the performance of a honeycomb-patterned poly(lactide) (HCPLA) film as a physical barrier for preventing postoperative adhesion. HCPLA films were prepared using dioleoylphosphatidylethanolamine (DOPE) or a copolymer of dodecylacrylamide and ω-carboxyhexylacrylamide (CAP) as a surfactant (HCPLA-DOPE and HCPLA-CAP, respectively). In an in vivo adhesion prevention experiment, male Sprague-Dawley rats underwent standard cecum abrasion before midline laparotomy. We placed 2 cm x 2 cm HCPLA and flat films on the gliding interfaces; untreated rats formed the control group. After 1 week, adhesion was scored from 0 to 4. No significant difference was observed in the scores among groups, but macroscopic differences in adhesion prevention were observed. The adhesive strength of HCPLA-DOPE (18.1 ± 1.2 g) to skinless chicken breast was significantly higher than that of the flat film (15.2 ± 0.8 g, p < 0.05). Further, the adhesion score after 1 week for the HCPLA-DOPE group (1.6 ± 0.2) was significantly lower than that for the control group (3.0 ±0.3, ñ< 0.05) but comparable to that for the Seprafilm™ group (1.4 ± 0.3). These results demonstrated the potential of HCPLA-DOPE as a physical barrier for preventing postoperative adhesion.
|Number of pages||7|
|Journal||Journal of Biomedical Materials Research - Part B Applied Biomaterials|
|Publication status||Published - Aug 1 2008|
All Science Journal Classification (ASJC) codes
- Biomedical Engineering