RESUMO
Objective To investigate the clinical effect of interbody cages combined with pedicle screw system in treatment of spondylolisthesis. Methods Of 20 patients with spondylolisthesis, interbody cages combined with 10pedicle screw system was performed in 10 patients and spinal decompression combined with intervertebral bone grafting in another 10. Results All the patients were followed up for 8-12 months (average 10 months), which showed significant improvement in the syndrome. Of 10 patients treated with interbody cages combined with pedicle screw system, seven patients were evaluated excellent, two good and one fair. Of 10 patients treated with spinal decompression combined with intervertebral bone grafting, five patients were evaluated excellent, two good and three fair. Conclusion Interbody cages combined with pedicle screw system is an safe and effective surgery for spondylolisthesis.