Abstract
Background: There were lower rate of solid bony union in the traditional posterolateral lumbar fusion. And previous studies have showed that paraspinal musculature provided predominant vascular ingrowth into the fusion mass. The purpose of this study was to introduce a novel posterior fusion technique which utilized orthotopic paraspinal muscle-pediculated bone flaps for increasing blood supply and accelerating the healing of local bone grafts. In addition, the feasibility, safety, and early outcome of this method were evaluated. Methods: 48 patients of degenerative lumbar disorders were treated with the novel posterior lumbar fusion method. To analyze early complications, rate of fusion and clinical outcome. The fusion status was assessed by three-dimensional reconstruction of CT at at 6 months and 1 year after surgery. The VAS, ODI and SF-36 were assessed pre- and postoperatively.Results: All the patients were followed up for 2 years at least. No operative or postoperative complications were encountered. There was significant statistical difference in VAS, ODI and SF-36 before and after operation (P<0.01). Satisfactory fusion was observed at 6-months follow-up. There was only one case not formed solid fusion at the last follow-up.Conclusions: The posterior lumbar fusion method was such a novel and useful technique that made the position of bone graft more precise and stable that it can increase the fusion rate. This method has decreased the incidence rate of pseudarthrosis, and could get satisfactory clinical outcomes.
Micro-Computed Tomography-Based Three-Dimensional Kinematic Analysis During Lateral Bending for Spinal Fusion Assessment in a Rat Posterolateral Lumbar Fusion Model
