Outcomes of unilateral or bilateral percutaneous kyphoplasty for osteoporotic vertebral compression fractures

English Keywords:Percutaneous kyphoplasty  Osteoporosis  Vertebral compression fractures  Clinical curative

English Abstract:

  【Abstract】 Objective：To compare the clinical outcomes of unilateral versus bilateral kyphoplasty for osteoporotic compression fracture.Method：97 cases（140 vertebrae） who sustained osteoporotic vertebral compression fracture and underwent percutaneous kyphoplasty from June 2007 to November 2008 were reviewed retrospectively.All cases were divided into two groups according to unilateral or bilateral approach.The unilateral group（58 patients，85 vertebraes） included 13 males and 45 females with an average age of 65.3（range，50-87 years old），while 39 patients（55 vertebraes） were in the bipedicular group，who were 5 males and 34 females with an average age of 67.1（range，52-88 years old）.The visual analogue scale（VAS），vertebral body height，Cobb′s angle at pre and post-operation and incidence of complications were used to observe the difference between 2 groups.Result：All patients underwent surgery successfully.The unilateral group had an average operative time of （45±16）min and an average of bone cement filling of （3.1±1.7）ml，while those for bilateral group were（45±16）min and （3.1±1.7）ml respectively.The VAS score decreased significantly after operation（P＜0.05），but no significant difference were noted between 2 groups（P＞0.05）.Both groups had a significant recovery for average vertebral height and local Cobb′s angle（P＜0.05），but no statistical significance were noted between them（P>0.05）.As for the rate of cement leakage and adjacent vertebral fractures，unilateral group had 14.12% and bilateral group had 16.36%（P＞0.05）.Conclusion：Both unilateral or bilateral kyphoplasty are reliable for OVCFs，but unipedicular approach has the advantages of shorter operation time and lower bone cement leakage rate.