Surgical treatment of degenerative scoliosis with segmental pedical screw

Objective: To investigate the surgical strategy for degenerative scoliosis and evaluate the clinical results of posterior pedicle screws correction technique.Method:82 patients had been operated on since July 1998 to July 2003.41 patients had one-stage posterior pedicle screws instrumentation correction,and PLIF intervetebra combined with posterlateral fusion.14 cases had posterior shortening and pedicle screws system correction with posterlateral bone grafting.10 cases only had posterior decompression and pedicle screws fixation with posterlateral bone grafting.17 cases with first anterior spinal release,structural grafting,staged posterior correction with pedicle screws system and posterlateral bone grafting.Result:No death was noted,1 cases with wound infection during perioperation period,4 cases delayed healing.Medical complication including 7 cases pneumonia,and 6 cases heart diseases recurrence.In this group,patients were followed up from 6 months to 4 years,there were no screw or rod breakase and no secondary scoliosis at upper or lower fused vertebral bodies as well.42 cases finished 2 years follow-up,Oswestry score improved from 58.62±12.48 before operation to 31.15±14.12 in 2 years follow-up.Conclusion:Segmental pedicle screws instruments shows good results for degenerative scoliosis correction,and can achieve satisfactory outcomes for low back pain relief and improvement of radicular syndrome and neurogenic claudication.