Priliminary study of anteroposterior integration fixation by posterolateral nail-stick system for thora?鄄columbar disorders

English Keywords:Thoracolumbar spine  Posterolateral fixation  Nail-stick system  Anterior-posterior integration fixtion

English Abstract:

  【Abstract】 Objective：To explore the clinical effect of anteroposterior integration fixation（APIF） by using self-designed posterior lateral nail-stick system for thoracolumbar disorders.Method：A retrospective analysis was conducted on 12 patients with spine disorders（including 2 tumor，2 tuberculosis，5 burst fracture and 3 old fracture），of these，9 cases were complicated with thoracolumbar kyphosis，with the mean preoperative Cobb angle of 15.9°±3.6°（range，12°-22°），and 8 cases had neurofunction deficit.The pain status（VAS），kypjosis correction（Cobb），neurofunction improvement（Frankel） and complication were reviewed.Result：All cases were followed up for an average of 6.8 months（range，4-10 months），pain relief was achieved in all cases with the postoperative VAS score decreasing to 3.8±1.0 compared with preoperative 7.8±0.9（P<0.01）.The postoperative Cobb angle decreased to 0.9°±2.9°，which showed significant difference compared with preoperative ones（P<0.01）.All except 1 had neurofunction improved at least 1 level.No instrument failure was noted at follow-up.Conclusion：Anteroposterior integration fixation by posterolateral nail-stick system is reliable for thoracolumbar disorders.