Single-stage anterior-posterior or posterior-alone hemivertebra resection for congenital scoliosis

English Keywords:Congenital scoliosis  Hemivertebrae  Surgical approach

English Abstract:

  【Abstract】 Objective：To evaluate the efficacy and safety of single-stage anterior-posterior or posterior-alone hemivertebra resection for congenital scoliosis retrospectively.Method：From April 2003 to August 2007，32 congenital scoliosis patients undergoing single-stage anterior-posterior or posterior-alone hemivertebra resection were included in this study.The mean age at time of surgery was 12.8 years old（range，9-22 years）.13 patients had hemivertebre at T9-L2 with the bottom of hemivertebra orientated ventrally and underwent single-stage anterior-posterior hemivertebra resection（anterior-posterior group），the other 19 patients had single hemivertebra at T10-L3 with the bottom of hemivertebra orientated dorsally experienced single posterior surgery.The operation time，blood loss，correction rate of main curve and complication were reviewed and compared between 2 groups.Result：The mean operation time and blood loss for anterior-posterior group and posterior group was 5.4h/580ml and 4.3h/470ml respectively，which had significant difference（P<0.05）.The average correction rate of main curve for anterior-posterior group and posterior group was 64.1% and 63.7%（P>0.05） respectively.Follow-up period averaged 18 months.No significant loss of correction was found.Complication in 2 groups was rare.Conclusion：Hemivertebra resection in thoracolumbar region is effective for congenital scoliosis.Preoperative evaluation of hemivertebra and careful maneuver can ensure the procedure safe and successful.