Relevance of mesh weight and fixation

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In the setting of an inguinal hernia, what is the relevance of the weight of mesh used and whether the mesh needs to have more or less fixation.

My understanding is that lighter mesh may have a higher recurrence than a mid or heavier weight mesh. However, when it comes to chronic pain rates or nerve issues, would a lighter mesh be more feasible? What about the technique used? I read that light mesh in open repair may have slightly less pain than light mesh in laparoscopic but it seems most surgeons would prefer a heavier mesh to minimize recurrence if done laparoscopic. Does this mean that a light mesh in open fashion would be the optimal choice?

In addition, what are the pros and cons of more or less fixation? How about self-fixating mesh like ProGrip? Where does that fit into the picture?

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