Research on the Clinical Efficacy of Minimally Nucleus Pulposus Prolapse in the Elderly Patients with Lumbar disc Herniation

Objective: To investigate the clinical effect of minimally nucleus pulposus prolapse in the elderly patients with lumbar disc herniation. Methods: 40 elderly patients who were over 65 years old with Lumber Disc Herniation(LDH) hospitalized from March 2007 to March 2012(lumbar instability patients were excluded) were selected and randomly divided into the experimental group and control group(20 cases in each group). The experimental group was treated with the QUADRANT, and the control group was treated with whole vertebral plate rejected, the internal fixation was used for comparison. The VAS score three days after surgery, MacNab grading, operation time, blade length, blood loss, Vertebra gap height and the Average Cobb's Angle were compared. Results: The operation time and blade length of experimental group were shorter than those of the control group, so were the bleed loss and the VAS score(P0.05). No significant difference of the excellent and good rate of improved MacNab grading was found between two groups(P0.05). Two years after the operation, no significant difference of the height loss of intervertebral was observed between two groups(P 0.05). But the average change of Cobb's angle of the experimental group was less than that of the control group(P0.05). Conclusion: Compared with the internal fixation fusion surgery, Minimally invasive surgery had the advantage of less bleeding, less damage and quick recovery after operation in the treatment of the elder patients with LDH.S