Mesh infection and migration are dangerous and common complications after hernia repair. Many factors cause mesh migration, which may or may not be associated to infection. Before performing hernia repair using a mesh, it is important to choose the right device to avoid this kind of complication, above all in the presence of contaminated wounds or fields. We describe two cases of mesh infection and migration after umbilical hernia repair which were treated, in accordance with recommendations in the literature, by removing the infected mesh and replacing it with a biological mesh. Our experience confirms the feasibility of using biological mesh to perform umbilical hernia repair after infection, with consequent migration, of the previously placed mesh. Our cases are the first to be reported in which mesh migration is associated with infection after umbilical hernia repair, and they demonstrate the advantages of biologic implants in abdominal wall reconstruction.
 A. Arroyo, P. García, F. Pérez, et al., “Randomized Clinical Trial Comparing Suture and Mesh Repair of Umbilical Hernia in Adults,” British Journal of Surgery, Vol. 88, No. 10, 2001, pp. 1321-1323.
 B. E. Wright, J. Beckerman, M. Cohen, et al., “Is Laparoscopic Umbilical Hernia Repair with Mesh a Reasonable Alternative to Conventional Repair?” The American Journal of Surgery, Vol. 184, No. 6, 2002, pp. 505-508. http://dx.doi.org/10.1016/S0002-9610(02)01071-1
 S. Petersen, G. Henke, M. Freitag, et al., “Deep Prosthesis Infection in Incisional Hernia Repair: Predictive Factors and Clinical Outcome,” European Journal of Surgery, Vol. 167, No. 6, 2001, pp. 453-457. http://dx.doi.org/10.1080/110241501750243815
 J. R. Eriksen, T. Gogenur and J. Rosenberg, “Choice of Mesh for Laparoscopic Ventral Hernia Repair,” Hernia, Vol. 11, No. 6, 2007, pp. 481-492. http://dx.doi.org/10.1007/s10029-007-0282-8
 D. Foschi, F. Corsi, P. Cellerino, et al., “Late Rejection of the Mesh after Laparoscopic Hernia Repair,” Surgical Endoscopy, Vol. 12, No. 5, 1998, pp. 455-457. http://dx.doi.org/10.1007/s004649900704
 W. S. Cobb, K. W. Kercher and B. T. Heniford, “Laparoscopic Repair of Incisional Hernias,” Surgical Clinics of North America, Vol. 85, No. 1, 2005, pp. 91-103.
 M. Korenkov, A. Paul, S. Sauerland, et al., “Classification and Surgical Treatment of Incisional Hernia: Results of an Experts’ Meeting,” Langenbeck’s Archives of Surgery, Vol. 386, No. 1, 2001, pp. 65-73. http://dx.doi.org/10.1007/s004230000182
 V. M. Sanchez, Y. E. Abi-Haidar and K. M. Itani, “Mesh Infection in Ventral Incisional Hernia Repair: Incidence, Contributing Factors, and Treatment,” Surgical Infections (Larchmt), Vol. 12, No. 3, 2011, pp. 205-210. http://dx.doi.org/10.1089/sur.2011.033
 M. N. Mavros, S. Athanasiou, V. G. Alexiou, et al., “Risk Factors for Mesh-Related Infections After Hernia Repair Surgery: A Meta-Analysis of Cohort Studies,” World Journal of Surgery, Vol. 35, No. 11, 2011, pp. 2389-2398. http://dx.doi.org/10.1007/s00268-011-1266-5
 A. Agrawal and R. Avill, “Mesh Migration Following Repair of Inguinal Hernia: A Case Report and Review of Literature,” Hernia, Vol. 10, No. 1, 2006, pp. 79-82. http://dx.doi.org/10.1007/s10029-005-0024-8
 P. K. Chowbey, N. Bagchi, A. Goel, et al., ”Mesh Migration into the Bladder after TEP Repair: A Rare Case Report,” Surgical Laparoscopy, Endoscopy & Percutaneous Techniques, Vol. 16, No. 1, 2006, pp. 52-53. http://dx.doi.org/10.1097/01.sle.0000202185.34666.f1
 S. Bringman, J. Conze, D. Cuccurullo, et al., “Hernia Repair: The Search for Ideal Meshes,” Hernia, Vol. 14, No. 1, 2010, pp. 81-87. http://dx.doi.org/10.1007/s10029-009-0587-x
 P. W. Hsu, C. J. Salgado, K. Kent, et al., ”Evaluation of Porcine Dermal Collagen (Permacol) Used in Abdominal Wall Reconstruction,” Journal of Plastic, Reconstructive & Aesthetic Surgery, Vol. 62, No. 11, 2009, pp. 1484-1489. http://dx.doi.org/10.1016/j.bjps.2008.04.060
 M. L. Jarman-Smith, T. Bodamyali, C. Stevens, et al., “Porcine Collagen Crosslinking, Degradation, and Its Capability for Fibroblast Adhesion and Proliferation,” Journal of Materials Science: Materials in Medicine, Vol. 15, No. 8, 2004, pp. 925-932. http://dx.doi.org/10.1023/B:JMSM.0000036281.47596.cc
 F. Zheng, Y. Lin, E. Verbeken, et al., “Host Response after Reconstruction of Abdominal Wall Defects with Porcine Dermal Collagen in a Rat Model,” American Journal of Obstetrics & Gynecology, Vol. 191, 2004, pp. 1961-1970.
 T. M. Macleod, G. Williams, R. Sanders, et al., “Histological Evaluation of Permacol as a Subcutaneous Implant over a 20-Week Period in the Rat Model,” British Journal of Plastic Surgery, Vol. 58, No. 4, 2005, pp. 518-532.
 J. A. O’Brien, R. Ignotz, R. Montilla, et al., “Long-Term Histologic and Mechanical Results of a Permacol Abdominal Wall Explant,” Hernia, Vol. 15, No. 2, 2011, pp. 211-215.
 T. S. Satterwhite, S. Miri, et al., “Abdominal Wall Reconstruction with Dual Layer Crosslinked Porcine Dermal Xenograft: The “Pork Sandwich” Herniorraphy,” Journal of Plastic, Reconstructive & Aesthetic Surgery, Vol. 65, No. 3, 2012, pp. 333-341. http://dx.doi.org/10.1016/j.bjps.2011.09.044
 C. R. Deeken, L. Melman, et al., “Histologic and Biomechanical Evaluation of Crosslinked and Non-Crosslinked Biologic Meshes in a Porcine Model of Ventral Incisional Hernia Repair,” Journal of the American College of Surgeons, Vol. 212, No. 5, 2011, pp. 880-888.