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Updated: Jun 23, 2026

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model
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Image-guided pedicle screw insertion accuracy: a meta-analysis.

Nai-Feng Tian1, Hua-Zi Xu

  • 1Department of Orthopaedic Surgery, Zhejiang Spine Research Center, Second Affiliated Hospital of Wenzhou Medical College, 109 Xueyuanxi Road, Wenzhou, 325000, China.

International Orthopaedics
|May 8, 2009
PubMed
Summary
This summary is machine-generated.

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Computer tomography (CT)-based navigation offers higher accuracy for pedicle screw placement than 2D fluoroscopy-based navigation. However, accuracy is comparable in the lumbar spine for both methods.

Area of Science:

  • Spinal Surgery
  • Medical Navigation Technology
  • Orthopedic Implants

Background:

  • Pedicle screw insertion accuracy is crucial for spinal fusion success.
  • Computer tomography (CT)-based navigation and fluoroscopy-based navigation are utilized to enhance accuracy.
  • Existing literature presents inconsistent conclusions regarding the comparative accuracy of these navigation methods.

Purpose of the Study:

  • To conduct a meta-analysis comparing the accuracy of pedicle screw placement using CT-based versus 2D fluoroscopy-based navigation.
  • To identify factors influencing accuracy, such as subject type, navigation method, and spinal level.

Main Methods:

  • Meta-analysis of published literature from OVID, Springer, and MEDLINE databases.
  • Inclusion of studies reporting pedicle screw placement accuracy with different navigation methods.

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An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model
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An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model

Published on: May 31, 2017

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Last Updated: Jun 23, 2026

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An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model
09:07

An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model

Published on: May 31, 2017

  • Subgroup analysis based on in vivo/cadaveric subjects, navigation type, and spinal level.

    • Main Results:

    • A total of 7,533 pedicle screws were analyzed, with an overall accuracy of 89.22%.
    • In vivo CT-based navigation showed higher median accuracy (90.76%) compared to 2D fluoroscopy (85.48%).
    • Accuracy was comparable between CT-based and 2D fluoroscopy navigation in the lumbar spine, but CT-based navigation showed greater accuracy in the thoracic spine for in vivo populations.

    Conclusions:

    • CT-based navigation generally provides superior accuracy for pedicle screw placement across various subgroups.
    • 2D fluoroscopy-based navigation can be comparable to CT-based navigation, particularly in the lumbar spine.
    • CT-based navigation offers a distinct advantage in the thoracic spine for in vivo procedures.