标题：A comparison of prosthetic materials used to repair abdominal wall defects

作者：Jenkins SD, Klamer TW, Parteka JJ, Condon RE.

网址:PMID: 6224307

求助者：驼铃in

• 求助时间：2015/6/15 16:14:48
• 求助状态：AB图书馆客服已找到全文，详情咨询在线客服qq 1257749646
• 文献摘要：

A large abdominal wall hernia, not amenable to primary closure, may require insertion of a prosthesis. The ideal prosthesis maintains strength, is incorporated by surrounding tissues, and does not stimulate adhesions. These qualities vary among available synthetic prostheses. We tested tensile strength, bursting strength, and adhesion formation in response to six materials used in repair of abdominal wall hernias. Adult Sprague-Dawley rats (196) were randomly divided into a control group and six experimental groups. A 4 by 4 cm full-thickness resection of abdominal wall was closed with patches of polypropylene mesh (Marlex), polyglactin 910 mesh (Vicryl), expanded polytetrafluoroethylene (Gore-tex), Dacron-reinforced silicone rubber (Silastic), preserved human dura (PHD), or polypropylene mesh overlying gelatin film (Marlex and Gelfilm, respectively). In controls the 4 cm longitudinal full-thickness incisions were closed primarily. Seven rats randomly selected from each group were sacrificed after 1, 2, 4, and 8 weeks; bursting and tensile strength (tensiometer) and adhesion formation were assessed. There were no differences in bursting strength among the experimental groups at each testing period. Although bursting strength increased linearly with time it was significantly weaker than in controls at 1 and 8 weeks (P less than 0.05). Tensiometric data were inconclusive due to wide variability within the experimental groups. Adhesion formation was moderate to maximal at all evaluation periods for Marlex and Gore-tex. Early adhesion formation was minimal to moderate for both PHD and Vicryl, but later increased with PHD and decreased with Vicryl as this prosthesis was absorbed. No adhesions formed with Marlex and Gelfilm until the gelatin dissolved (1 week), after which the adhesion response was similar to that with Marlex alone. No adhesions formed after Silastic implantation, but graft extrusion and evisceration were common (75%). Controls had no adhesions at all evaluation periods. Wound strength was similar for all prosthetic materials. Absorbable prosthetic Vicryl provided the best long-term protection against adhesions.

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