Influence of age factors on the outcome of laminoplasty in spinal cervical spondylolisthesis

  OBJECTIVE: To compare the difference in outcomes between the elderly and non-elderly groups of spinal cord-type cervical spondylolisthesis cases undergoing vertebroplasty.  METHODS: A retrospective study of 208 cases of spinal cord-type cervical spondylosis who underwent posterior cervical single-opening laminoplasty from January 2006 to September 2010, 144 men and 64 women, with a mean age of 59.3 years (24 to 85 years), a symptom duration of 27.1±22.9 months, and a mean postoperative follow-up of 24.3±16.1 months. Patients were divided into 2 groups according to age: a non-elderly group (<65 years) and an elderly group (≥65 years) with 135 and 73 cases, respectively. The JOA score was used to assess preoperative and postoperative neurological function.  RESULTS: The preoperative and postoperative JOA scores were 11.5±2.8 and 14.4±2.2, and 9.6±2.7 and 12.6±2.4 in the non-elderly and elderly groups, respectively. preoperative and postoperative JOA scores were lower in the elderly group compared with the non-elderly group (p<< span="">0.0001). the JOA improvement rate was (59.1±28.3%) in the non-elderly and elderly groups, respectively. (28.3) % and (42.9±23.3) % (p<0.0001< span="">), which were significantly different, but the JOA score improvement values were 3.1±2.4 and 3.0±2.5 in the two groups of cases, respectively, and no statistical difference was seen (p=0.7777).  CONCLUSION: Both preoperative and postoperative JOA scores were lower in elderly patients with spinal cord-type cervical spondylosis, but the degree of improvement was similar in both groups; therefore, good results can also be obtained by performing single-opening laminoplasty in elderly patients.  Keywords: spinal cord-type cervical spondylosis; elderly patients; vertebroplasty; surgical results.