A Method for Radiographic Evaluation of Pedicle Screw Violation of the Vertebral Endplate: Technique

@article{Meter1996AMF,
  title={A Method for Radiographic Evaluation of Pedicle Screw Violation of the Vertebral Endplate: Technique},
  author={J. Meter and D. Polly and D. W. Miller and N. Popovic and S. Ondra},
  journal={Spine},
  year={1996},
  volume={21},
  pages={1587–1592}
}
Study Design This study evaluated the utility of intraoperative radiographs for minimizing the risk of pedicle screw tip violation of the superior vertebral endplate. Objectives An intraoperative radiographic technique is demonstrated that ensures that a screw has not penetrated the intervertebral disk. Summary of Background Data Although methods to avoid penetration of the medial pedicle cortex and the anterior body cortex have been described, no study has discussed screw penetration of the… Expand
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  • Medicine
  • The Journal of bone and joint surgery. American volume
  • 2000
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References

SHOWING 1-10 OF 17 REFERENCES
Spinal Pedicle Fixation: Reliability and Validity of Roentgenogram-Based Assessment and Surgical Factors on Successful Screw Placement
TLDR
Examination of relative success rates indicated no significant differences between the Weinstein and Roy-Camille approach in the upper lumbar spine (T11–L2), but a trend toward greater success with the Weinstein approach in this region of the spine (L3–S1); a 93.1% success rate for the Weinstein, compared with 78.6% for the Roy- Camille approach. Expand
A biomechanical study of intrapeduncular screw fixation in the lumbosacral spine.
TLDR
Methyl methacrylate was found to restore secure fixation in previously-loosened screws and pressurization of cement doubled the pull-out force in cyclic load tests, deeper-inserted screws were found to withstand a greater number of cycles before loosening. Expand
Morphometry of the Thoracic and Lumbar Spine Related to Transpedicular Screw Placement for Surgical Spinal Fixation
TLDR
Good correlation is shown to occur between CT scan and direct physical measurements of human vertebrae, and implications for spinal implant screw dimensions and safety of implantation are discussed. Expand
The variable screw placement spinal fixation system. Report of a prospective study of 250 patients enrolled in Food and Drug Administration clinical trials.
TLDR
The variable screw placement (VSP) system uses transpedicular screws and slotted plates to achieve constrained segmental fixation of the spine to test the safety and effectiveness of this system. Expand
Placement of Transpedicular Vertebral Screws Close to Anterior Vertebral Cortex: Description of Methods
TLDR
A radiographic method (“near approach view”) that avoids this problem and allows direct visualization of the relationship between drill bit or screw tip and anterior vertebral cortex and a surgical technique that provides both an audible and a palpable change when the drill bit contacts the anterior cortex. Expand
Complications of the Wiltse Pedicle Screw Fixation System.
The purpose of the current study is to retrospectively review the incidence and types of complications occurring using a single pedicle screw fixation system for lumbar spine fusions. For a 3-yearExpand
Segmental spine plates with pedicle screw fixation. A new internal fixation device for disorders of the lumbar and thoracolumbar spine.
A new segmental spine plate fixation system, utilizing a posterior approach and screw fixation, has been developed for disorders of the lower thoracic or lumbar spine. The indications are significantExpand
Internal fixation of the lumbar spine with pedicle screw plating.
The results and complications of pedicle screw plate (PSP) stabilizations were investigated in lumbar fresh fractures, malunions, lumbar metastases, primary tumors, lumbosacral fusions, and highgradeExpand
Variables affecting disc size in the lumbar spine of rabbits: Anesthesia, paralysis, and disc injury
TLDR
Findings are consistent with the hypothesis that in vivo disc‐width size in the young rabbit depends on both the quantity of nucleus pulposus material and the force‐generating activities of the adjacent spinal muscles, and that disc injury at one level stimulates narrowing at other levels. Expand
Lumbar and lumbosacral fusions using Cotrel-Dubousset pedicle screws and rods.
TLDR
Large and small diameter Cotrel-Dubousset rods allowed short segment lumbar and lumbosacral fusion with a high degree of reliability and demonstrated successful arthrodesis after their initial procedure. Expand
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