Unilateral extrapedicular vertebroplasty and kyphoplasty in the treatment of upper and mid-thoracic vertebral compression fracture

English Keywords:Ｔhoracic vertebral fracture  Ｕni-extrapedicular approach  PVP  PKP

English Abstract:

  【Abstract】 Objective：To evaluate the characteristics and effects of unilateral extrapedicular vertebroplasty and kyphoplasty in the treatment of upper and mid-thoracic vertebral fractures.Methods：Retrospective analysis ｏｆ　39 vertebrae　in 26 patients（M:F=8:18）who underwent unilateral extrapedicular vertebroplasty and kyphoplasty for osteoporotic vertebral compression fractures at upper and mid-thoracic vertebra between November 2004 ａｎｄ　March 2010 in our hospital.The fracture vertebras is T3 1，Ｔ４　３，Ｔ５　４，Ｔ６　４，Ｔ７　６，Ｔ８　１０，Ｔ９　６，Ｔ１０　５.The mean age was 71.3±1.3 years.The average time of fracture was 3.5 weeks.One level was 17 cases，two levels were 5 cases and three levels were 4 cases.Clinical outcｏmes wｅｒｅ　evaluated using VAS．Ｔhe rate of loss anterior and middle heights of the vertebral body，the rate of cement leakage and the rate of suitable puncture before and after operation　ｗｅｒｅ　ｅｖａｌｕａｔｅｄ.Results：Twenty-seven levels were treated in 15 cases with PVP，and twelve levels were treated in 11 cases with PKP..The rate of cement leakage was 10.25%.All patients were followed　up over 1 year.The VAS ｓｃｏｒｅｓ were ９.８±0．３ preoperatiｖｅly and ５．７±0.4　ｏｆ　１　ｄａｙ　ａｎｄ　3．3±0.4　ｏｆ　ｆｉｎａｌ　ｆｏｌｌｏｗ－ｕｐ postoperatiｖｅly（P<0.0５）.The anterior and middle vertebral height restoration were 63.1±18.6% and 68.5±25.3% respectively（P＜０．０５）.Conlusions：Unilateral extrapedicular vertebroplasty and kyphoplasty were safety in the treatment of upper and mid-thoracic vertebral compression fractures.The osteous track　should be measured on three-dimensional CT images before PVP and PKP.