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Fascia Tightening ??
You may want to ask you hand surgeon about the use of mesh. Other than that, surgery and diseases such as yours are out of my field of expertise, so I really can’t comment about the why and how of operations I have never seen, let alone done. I would also frame your questions the same way you have here, and bring up the possibility of using hernia repair techniques if on fact there is a need. The surgeon would then be able to speak with a local general/hernia surgeon to share information.