Experimental Study On Prevention Of Epidural Adhesion Postlaminectomy With Meliorating Opening-Door Laminoplasty And Mudcle Pedicle Transplantation

Objective: To investigate the effect of the treatment of meliorating opening-door laminoplasty and muscle pedicle transplantation in the prevention of epidural adhesion postlaminectomy. Mehtods:18 dogs were divided into 3 groups, the treatment of meliorating opening-door laminoplasty and muscle pedicle transplantation on cervical/lumbar spine was performed in dogs from group A; Meliorating opening-door lamioplasty was performed on cervical/lumbar spine in group B, and the laminectomy of cervical/lumbar vertebral canal was performed in group C. Dogs in A, B, C groups was taken B-us examination frist after narcosis at 4th , 8th, 12th week, and then kill the dogs with air embolize method. Each dog' s epidural adhesion postlaminectomy were observed grossly and histologically. Results: Observed with B-us and histologically, there was no obvious epidural adhesion at the dogs after performed with meliorating opening-door laminoplasty and muscle pedicle transplantation; A few epidural adhedion at the dogs after performed with meliorating opening-door lamioplasty ; Severe epidural adhesion at the dogs after performed with laminectomy only. Conclusion: 1. Meliorating opening-door laminoplasty and muscle pedicle transplantation has been proved to have effect in preventing the epidural adhesion postlaminectomy. 2. There was prevention of reclose opening-door. 3. Muscle pedicle has the best compatibility with the tissues.