It was reported in a journal article with title: early results of a single-blinded, randomized, controlled, internet-based multicenter trial comparing prolene and vypro ii mesh in lichtenstein hernioplasty.The purpose of this single-blinded, randomized, controlled, internet-based multicenter trial was to compare a standard polypropylene mesh with the new polypropylene/polyglactin mesh in the lichtenstein operation.From dec 2000 to aug 2002, a total of 591 male patients, more than 25 years of age, with a unilateral primary inguinal hernia were eligible to participate in the study.The patients were randomized to lichtenstein¿s operation with either: prolene mesh group (n=295, mean age 54 years) or vypro ii mesh group (n=296, mean age 55 years).A piece of 7.5 x 15-cm prolene (ethicon) or vypro ii (ethicon) mesh was used according to the assigned group.Postoperative complications included prolonged postoperative pain or neuralgia (n=9, n=7 from prolene, n=2 from vypro ii); seroma (n=5, n=2 from prolene, n=3 from vypro ii); hematoma (n=25, n=11 from prolene, n=14 from vypro ii) which one patient needed reoperation with evacuation of the hematoma on the day of the operation under vypro ii group; urinary tract infection (n=1); testis atrofia (n=1); sensory loss (n=3, n=2 from prolene, n=1 from vypro ii); urinary retention (n=1); and ischemic orchitis (n=1).Lichtenstein¿s operation with either prolene or vypro ii is safe and well tolerated with an acceptable postoperative rehabilitation time and a high quality of life 2 months after surgery.
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