ObjectiveTo compare the clinical efficacy of simple posterior reduction and decompression internal fixation with bone graft fusion in the treatment of lumbar spondylolisthesis among different age groups.

MethodsForty patients with lumbar spondylolisthesis were divided into the group A(aged 26 to 55 years old) and group B(aged 55 to 77 years old).Two groups were treated with simple posterior reduction and decompression internal fixation with bone graft fusion.

ResultsForty cases were followed up for 6 to 30 months.The slip reduction rate in group A was higher than that in group B(P < 0.05).The differences of the operation time, blood loss, postoperative VAS score, postoperative JOP score, false joint formation rate, dural sac injury rate, intervertebral infection rate and incision hematoma rate between two groups were not statistically significant(P>0.05).The differences of VAS score and JOP score between two groups at the last follow-up were not statistically significant(P>0.05).

ConclusionsFor patients aged ≤ 55 years old, the complete reduction of the spondylolisthesis should be achieved.The patients aged >55 years old may not be completely reduced, but the nerve root relaxation and no compression must be guaranteed.