Abstract: Introduction: Degenerative lumbar spine disorders comprise the major proportion of etiology of chronic low back pain in adult population, which often leads to serious disability to carry out daily routine activities. The conservative management provides only temporarily insufficient relief. Since the origin of surgical management, multiple types of surgical techniques have been described with its own pros and cons and different success rates. However, controversy regarding the choice of surgical technique with better success rate, shorter learning curve, and minimal complication rate still persist.
Aim: To determine the functional and radiological outcome of Posterior lumbar interbody fusion using bone graft and cage, alongwith posterior pedicle screw-rod fixation.
Materials and Methods: The prospective study was done over 30 patients with various manifestations of degenerative lumbar spine disorder at the tertiary care teaching hospital in southern Rajasthan between January 2018 to June 2019. All patients underwent posterior lumbar interbody fusion with titanium cage and pedicle screw-rod fixation. Radiological fusion and functional assessment using Kirkaldy Willis criteria was done up to 6 months follow-up period.
Results: On evaluation, all the 30 cases (100%) had achieved solid union by the 6 months. The functional outcome according to Kirkaldy Willis criteria was excellent in 22 cases (73.33%), good in 6 cases (20%), fair in 1 case (3.33%), poor in 1 case (3.33%). So, considering excellent and good outcome as satisfactory outcome, functional outcome was satisfactory in 93.33 % cases.
Conclusion: We conclude that Posterior lumbar interbody fusion with cage and posterior instrumentation is a reliable surgical technique for degenerative lumbar spine disorders and produces excellent results and less complications after reasonable experience of surgeon.
