BOGDAN SOCEA, LAURA ILEANA SOCEA, OVIDIU GABRIEL BRATU, BOGDAN MASTALIER, MIHAI DIMITRIU, ALEXANDRU CARAP, VLAD DENIS CONSTANTIN RECURRENCE RATES AND MESH SHRINKAGE AFTER POLYPROPYLENE VS. POLYESTER MESH HERNIA REPAIR IN COMPLICATED HERNIAS Prosthetic mesh implants in hernia repair are frequently used based on the fact that lower recurrence rates are detected compared to anatomic repair. In latest years, researchers tried to answer weather there is an ideal mesh material for abdominal hernia repair. The studies tried to compare resistance, bio-tolerance, rates of recurrence and infection of several materials used in alloplasty. The results are far from pointing an unique ideal chemical structure of mesh. In our study, we compared the results of a cohort of 265 patients operated in 2010 and 2011 in our clinic for complicated abdominal incisional hernias. We compared the results of polypropylene mesh vs. polyester. Polypropylene mesh proved significantly better for preventing hernia recurrence and showed a lower shrinkage rate.