Clear Zone Formation around Screws in the Early Postoperative Stages after Posterior Lumbar Fusion Using the Cortical Bone Trajectory Technique

@inproceedings{Ninomiya2015ClearZF,
  title={Clear Zone Formation around Screws in the Early Postoperative Stages after Posterior Lumbar Fusion Using the Cortical Bone Trajectory Technique},
  author={Koshi Ninomiya and Koichi Iwatsuki and Yu-ichiro Ohnishi and Toshika Ohkawa and Toshiki Yoshimine},
  booktitle={Asian spine journal},
  year={2015}
}
STUDY DESIGN Retrospective study. PURPOSE To evaluate the initial fixation using the cortical bone trajectory (CBT) technique for posterior lumbar fusion through assessment of the clear zones around the screws and the risk factors involved. OVERVIEW OF LITERATURE Postoperative radiolucent zones (clear zones) are an indicator of poor conventional pedicle screw fixation. METHODS Between January 2013 and April 2014, 19 patients (8 men and 11 women) underwent posterior lumbar interbody fusion… CONTINUE READING

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