The clinical application of percutaneous vertebroplasty on bone metastatic tumor / 介入放射学杂志

ABSTRACT

Objective To study the primary volume of bone cement and the method of perfusion and the clinical effect of percutaneous vertebroplasty for bone metastatic tumors. Methods Percutaneous vertebroplasty was performed in 218 vertebral bodies of total 150 patients,including 92 males and 58 females with age of 26-85,averaging 56.8 y. 218 vertebral bodies included 73 dorsal vertebra and 138 lumber vertebra and 7 sacral vertebra. Operations were taken under the DSA monitoring. The approach route was selected according to the morphology of the vertebrae,damage extent and puncture site. Results Operation was successful in all 218 vertebrae of total 150 patients with a ratio of 100%. The primary volume of bone cement needed to fill dorsal vertebra was 2-5 ml,average 3.5 ml; that for lumber vertebra was 3-8 ml,average 5.5 ml; and that for sacral vertebra was 4-7,average 5.5 ml. 134 patients showed total pain relief (89.3%); 15 patients had partial remission (10%) and 1 failure (0.7%). The cement extravasated to intervertebral disk in 12 patients,to scleromeninx capsula externa in 10,to para-vertebra plexus venosus in 3 and to paravertebra soft tissue in 4. The incidence of leakage of bone cement was 13.3%,but no complications occurred during and after the operation. Concolusion Percutaneous vertebroplasty provides obvious pain relief effect for vertebral metastasis,worthy to be recommended widely in clinical application.