Clinical course and significance of the clear zone around the pedicle screws in the lumbar degenerative disease.

@article{Tokuhashi2008ClinicalCA,
  title={Clinical course and significance of the clear zone around the pedicle screws in the lumbar degenerative disease.},
  author={Yasuaki Tokuhashi and Hiromi Matsuzaki and Hiroshi Oda and Hiroshi Uei},
  journal={Spine},
  year={2008},
  volume={33 8},
  pages={
          903-8
        }
}
STUDY DESIGN A retrospective study. OBJECTIVE To report the clinical course and significance of postoperative radiolucent zones around pedicle screws. SUMMARY OF BACKGROUND DATA Radiolucent zones around pedicle screws have been considered to indicate loss of fixation, delayed union, or pseudarthrosis. Few reports have described the course and significance of them. METHODS Plain radiographs were evaluated from 190 patients with pedicle screw fixation. When 1 mm or greater circumferential… CONTINUE READING

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