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Bailey & Love's Surgery, 27th Edition Surgery Essence by Pritesh Singh (PGMEE) Sabiston's Textbook of Surgery
Farquharson's Textbook of Operative General Surgery, 10th Edition Surgery Sixer for NBE by Rajamahendran Surgery PreTest Self-Assessment and Review, Thirteenth Edition
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The Hippo Trial: Comparison of Self-gripping Mesh and Sutured Mesh in Lichtenstein Hernioplasty (Randomized double blind trial)

The Hippo Trail compared a conventional sutured mesh with a self-gripping mesh (Progrip Mesh) in Lichtenstein Hernioplasty. The two parameters which were evaluated were incidence of chronic postoperative inguinal pain (CPIP) and recurrence rate after Lichtenstein hernioplasty.

Self-gripping Mesh

The trial was conducted since chronic pain is the most common complication of inguinal hernioplasty and it was thought that one of the causes may be the use of sutures to secure the mesh.

However, it was found that self-gripping Progrip mesh does not reduce chronic postoperative inguinal pain (CPIP) rates. Hernia recurrence rate after 24 months was 2.4% for the Progrip mesh and 1.8% for the sutured mesh (P = 0.213). The mean duration of surgery was significant shorter with the Progrip mesh (44 vs 53 minutes, P < 0.001).


  • Self-Gripping Mesh does not reduce chronic postoperative inguinal pain (CPIP) rates as compared to sutured mesh
  • Hernia recurrence rate are not significantly different for self-gripping mesh as compared to sutured mesh
  • The mean duration of surgery was significantly shorter with the self-gripping mesh compared to sutured mesh (44 vs 53 minutes)



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