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  • Title: 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.
    Author: Siroya HL, Kumar VB, Bhat DI, Shukla DP, Devi BI.
    Journal: Neurol India; 2023; 71(1):55-61. PubMed ID: 36861575.
    Abstract:
    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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