title: Investigating a possible cause of mesh migration during totally extraperitoneal (TEP) repair.
abstract: BACKGROUND
  In experienced hands, laparoscopic inguinal hernia repair has a low rate of recurrence, but it still can recur, and a number of reasons for this have been identified. In published studies, the majority of such cases seem to result from inadequate dissection leading to missed hernias or suboptimal mesh placement. But even with adequate dissection and proper placement of a sufficiently large mesh, recurrence sometimes happens. A number of investigators have cited mesh migration or dislocation as a possible cause, and this study examined how hip flexion affects the position of newly placed meshes and staples in totally extraperitoneal (TEP) repair of inguinal hernia.
  
  
  METHODS
  After completion of the dissection and reduction of discovered hernias, a 15 x 15-cm polypropylene mesh was placed either unilaterally or bilaterally, as indicated. The preperitoneal space then was desufflated. The operating table, in an extended -20 degrees position during surgery, was placed in a 90 degrees position for approximately 15 s. After reinsufflation, the possibility of mesh migration and folding was investigated. Finally, the mesh was stapled, the table again extended and flexed, and the possibility of mesh migration and staple dislodgement investigated once more.
  
  
  RESULTS
  The mesh did not migrate or become displaced from any potential hernia area, nor did any of the staples become dislodged.
  
  
  CONCLUSIONS
  Concern about mesh migration attributable to patients sitting up immediately after surgery appears to be unfounded, at least according to the findings for the current, small, simulated study group.
authors.affiliation: Department of Surgery, Staten Island University Hospital, 65 Cromwell Avenue, Staten Island, NY 10304, USA.
authors.forename: C
authors.initials: C
authors.lastname: Choy
authors.forename: K
authors.initials: K
authors.lastname: Shapiro
authors.forename: S
authors.initials: S
authors.lastname: Patel
authors.forename: A
authors.initials: A
authors.lastname: Graham
authors.forename: G
authors.initials: G
authors.lastname: Ferzli
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004210:Dissection; D005260:Female; D005548:Foreign-Body Migration / Q000209:etiology*; D006550:Hernia, Femoral / Q000601:surgery; D006552:Hernia, Inguinal / Q000601:surgery*; D006553:Hernia, Obturator / Q000601:surgery; D006615:Hip / Q000502:physiology*; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009068:Movement; D011028:Pneumoperitoneum, Artificial / Q000009:adverse effects; D011183:Postoperative Complications / Q000209:etiology*; D011187:Posture; D011446:Prospective Studies; D012008:Recurrence; D013314:Stress, Mechanical; D013526:Surgical Mesh / Q000009:adverse effects*; D017792:Surgical Stapling