Vaginal FistulaNerve RegenerationPeripheral Nerve InjuriesPeripheral NervesSciatic NerveNerve TransferTibial NerveGuided Tissue RegenerationSciatic NeuropathySchwann CellsUlnar NerveNerve CrushPeroneal NerveMedian NerveFibrin Tissue AdhesiveTrauma, Nervous SystemAxonsRecovery of FunctionAnastomosis, SurgicalDNA RepairMyelin SheathNeurosurgical ProceduresTissue Adhesives