Objective: Through an experiment in rabbits, to evaluate the role of reservation flaval ligament using different methods to prevent the epidural adhesion by observing the morphological changes and provide experiment evidences for clinic.
Methods: 45 adult rabbits were divided into three groups: Group A (treated with no reservation of flaval ligament), Group B (treated with reserving half flaval ligament), and Group C (treated with reserving the complete flaval ligament). Every group has 15 rabbits. At the 2nd, 4th and 8th weeks, the samples were obtained for gross observation, histological examinations, and the images were analysed by computer. The data were processed using SPSS11.5.
Result: Gross Observation and Histological Examinations, at the 2nd, 4th and 8th postoperative week, there was significant difference between the group A, B and C (gross observation: F2w=4.660, F4w=8.591, F8w=31.858, P<0.05; histological examinations: F2w=5.190, F4w=9.561, F8w=34.658, P<0.05). Images analysis: the difference was very significant in the groups at 2nd, 4th and 8th weeks (F2w=30.783, F4w=47.350, F8w=25.544, P<0.01). With time passing, the ratio became larger and larger in the same group.
Conclusions: Reserving the complete flaval ligament can significantly prevent the peridural adhesion from the back as a barrier, and can reduce the adhesion formed.
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