Background And Purpose: Scar formation after spine surgery in the lumbosacral region may be the cause of failed back surgery syndrome. Therefore efforts are made to find materials preventing excessive scar formation at the site of surgery. The aim of the study was to evaluate the usefulness of TachoComb application in prevention of epidural scar formation in a rat experimental model. This paper additionally presents a review of literature concerning other methods of local suppression of scar formation after posterior approaches to the lumbar spine.
Material And Methods: The experimental study was carried out on 14 male Wistar rats. Rats were divided into 2 groups. Laminectomy was performed in the first group (control group: n=5). In the second group of animals (n=9) laminectomy was followed by TachoComb application on the exposed dura. Neurological condition of the studied animals was evaluated based on clinical observation, neurological tests and recording of somatosensory evoked potentials. Post mortem histological examination was the main method of assessment of the experimental material.
Results: Presence of scar in the vertebral canal, its extent and severity differed between experimental groups. Electrophysiological results were also different between studied groups.
Conclusions: TachoComb prevents epidural scar formation after lumbar spine surgery. Its positive effect concerning neural transmission at the level of the medulla was proven by electrophysiological tests in which the amplitude of components I and II of SSEP in the TachoComb group were significantly higher than in the control group.
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