Is Popularity of Fibrin Glue a Misrepresentation? A Comparative Study with Fibrin Glue and Suture Anastomosis in Rat Sciatic Nerve Injury Analysing Functional, Histological, Electrophysiological Parameters.
Neurology India（2023）
摘要
Background:Fibrin glue as an adjunct in peripheral nerve injuries has gained recent popularity. Whether fibrosis and inflammatory processes which are the major hindrances in repair reduce with fibrin glue has more of theoretical support than experimental.Methodology:A prospective nerve repair study was conducted between two different species of rats as donor and recipient. Four comparison groups with 40 rats were outlined with or without fibrin glue in immediate post-injury period with fresh or cold preserved grafts were examined based on histological, macroscopic, functional, and electrophysiological criteria.Results:There was suture site granuloma along with neuroma formation and inflammatory reaction and severe epineural inflammation in allografts with immediate suturing (Group A), whereas suture site inflammation and epineural inflammation were negligible in cold preserved allografts with immediate suturing (Group B). Allografts with minimal suturing and glue (Group C) had less severe epineural inflammation with less severe suture site granuloma and neuroma formation as compared to first two groups. Continuity of nerve was partial in later group as compared to other two. In fibrin glue only group (Group D), suture site granuloma and neuroma were absent, with negligible epineural inflammation, but continuity nerve was partial to absent in most of the rats with some showing partial continuity. Functionally, microsuturing with or without glue demonstrated significant difference with better SLR and toe spread (p = 0.042) as compared with only glue. Electrophysiologically, NCV was maximum in Group A and least in Group D at 12 weeks. We report significant difference in CMAP and NCV between microsuturing group vs. only glue group (p < 0.05) and also between microsuturing with glue group vs. only glue group (p < 0.05).Conclusion:There may be more data required with proper standardization for adept usage of fibrin glue. Though our results have shown partial success, it nonetheless highlights the lack of sufficient data for widespread glue usage.
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关键词
Use of fibrin has of late achieved significant popularity in nerve repairs,Whether the overzealous use of fibrin glue as a sole alternative for nerve repair justified is rather theoretical than practical,Our study points out that its use as sole agent is not justified in any circumstances as although it causes significantly less inflammation,fibrosis and neuroma formation,functionally,histologically,and electrophysiologically,its results are not promising as it shows significantly less nerve continuity,In this regard,an hybrid approach involving limited microsutures adjunct with fibrin glue can provide two benefits,firstly reduce inflammation,fibrosis,neuroma formation and secondly better nerve continuity
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