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Topical application of tacrolimus prevents epidural fibrosis in a rat postlaminectomy model: histopathological and ultrastructural analysis.
AIMPostlaminectomy epidural fibrosis is the formation of scar tissue over the dura mater following posterior spinal surgery. This devastating complication is responsible for the substantial amount of failed back syndromes. MATERIAL and
METHODSTwenty male Wistar-Albino rats each weighing 350-400 grams were used. Following L3-L5 laminectomy, the rats were randomly divided into 2 groups, with 10 rats in each group. In the control group, only a laminectomy was performed. In the drug group, 5 mg/ml tacrolimus was topically applied with a cotton pad soaked with the drug solution for 5 minutes. The animals were killed on the 30th postoperative day injecting a lethal dose (250 mg/kg) of pentobarbital and the involved dural segments were removed for histopathological and ultrastructural evaluations.
RESULTSEpidural scar thickness and the density were significantly lower in the animals treated with tacrolimus than those of the control group.
CONCLUSIONPromising evidence regarding the anti-scar potential of tacrolimus merits further research to optimize the dosage and the usage of the drug.
Suleyman Demirel University, Faculty of Medicine, Department of Neurosurgery, Isparta, Turkey. firstname.lastname@example.org, , ,
Turkish neurosurgery 21:4 2011 pg 630-3
Disease Models, Animal
Failed Back Surgery Syndrome
Pub Type(s)Journal Article