ABSTRACT
Objective To compare the clinical outcome of unipedicular versus bipedicular vertebroplasty treating for osteoporotic vertebral compression fracture.Methods Sixty-four patients(68 vertebra)were divided into two groups by treated methods:unipedicular kyphoplasty group(33 cases)and bipedicular vertebroplasty group(31 cases).The Cobb angle and vasual analogue pain scale(VAS)were measured preoperatively and postoperatively.The operation time was recorded.Compared the Cobb angle,VAS and the operation time between two groups.Results Of unipedicular kyphoplasty group preoperative,24 hours and 3 months after operation,VAS were(8.42 ± 1.33),(2.21 ± 1.67),(2.09 ± 1.58)scores,the Cobb angle were(31.24 ±9.12)°,(14.21 ±9.21)°,(14.43 ±9.36)° ;while those of bipedicular vertebroplasty group were(8.36 ± 1.52),(2.13 ± 1.80),(2.00 ± 1.71)scores and(30.84 ±8.77)°,(13.94 ± 8.87)°,(14.07 ± 9.87)°.VAS and the Cobb angle of both groups at 24 hours and 3 months after operation were lower than those preoperative(P＜ 0.01).VAS and the Cobb angle of both groups were similar at the same time preoperatively and postoperatively(P ＞ 0.05).The operation time of unipedicular kyphoplasty group and bipedicular vertebroplasty was(45.00 ± 8.76),(72.00 ± 9.32)min,respectively,there was statistically significant difference between two groups(P ＜ 0.01).Conclusions Compared with the bipedicular vertebroplasty,the advantages of unipedicular kyphoplasty are as follows:less trauma,less operation time and less X-rays rediation accepted of the patient and the operator.And it has the similar clinical outcome with the bipedicular vertebroplasty.