Clinical Application of Percutaneous kyphoplasty in treatment of osteopo rotic vertebral fracture

Objective To investigate the clinical effects of percutaneous kyphoplasty in over- extending position tomanage osteoporotic vertebral compression fractures.Methods Percutaneous kyphoplasty in over—extending position wasperformed in 30 vertebrae of 21 patients,which were all fresh fractures,without neurotic symptoms and signs.The posterior vertebral walls were all intact in all patients under CT scan.In over—extending position,the height of the com—pressed vertebral body would be restored.Then under the guidance ofCtype arm X ray unit.puncting neck of vertebrawith sacculus proprius.The vertebral body was filled with bone cement through pedicle of vertebral arch by percutaneouspuncture.Results Operations in all the 21 patients were completed smoothly,and immediate relief of their back pain was achieved within 48 hours postoperatively,and patients were discharged in 4 ~ 12 days.The mean duration of follow up was 11 months(6 - 18 months).VAS pain score improved from(8.55±0.3) preoperatively to(2.1±0.2)postoperatively and was(213±0.13)at the last follow up.Oswestry score improved from(43±1.32)preoperatively to(21±1.29)postoperatively and was(22 + 1.25)at the last follow up.The height of anterior and middle column vertebra increased from(14.8±2.7)mm preoperatively to(24.3±2.l)mm postoperatively and was(24.4±1.9)mm at the last follow up.Cobb angles were corrected from 23.2°±4.6°preoperatively to 10.3°±3.l°postopera—tively and was 10.2°±4.3°the last follow up.Conclusions Percutaneous kyphoplasty can relieve the pain and restore the compressed vertebral height evidently with better outcomes.