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Related Experiment Videos

[Computer assisted pelvic and acetabular surgery. Clinical experiences and indications].

U Stöckle1, B König, M Dahne

  • 1Unfall- und Wiederherstellungschirurgie, Virchow-Klinikum, Humboldt-Universität, Berlin, Germany. ulrich.stoeckle@charite.de

Der Unfallchirurg
|October 12, 2002
PubMed
Summary

CT-based navigation enhances precision in spine surgery and is now applied to pelvic and acetabular fractures. This technique shows promise for specific fracture types, improving screw placement accuracy.

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Area of Science:

  • Orthopedic Surgery
  • Medical Imaging
  • Surgical Navigation

Background:

  • Computed tomography (CT)-based navigation has been utilized in spine surgery since 1994, demonstrating increased precision over conventional methods.
  • Navigated pedicle screw placement is a standard procedure in many hospitals.

Purpose of the Study:

  • To evaluate the application of CT-based navigation for percutaneous screw fixations in minimally displaced pelvic ring and acetabular fractures.
  • To assess the efficacy and accuracy of C-arm navigation for sacroiliac (SI) screw fixation.

Main Methods:

  • Preclinical trials were followed by 19 C-arm navigation-assisted screw fixations for pelvic and acetabular fractures.
  • Postoperative X-ray and CT scans were used to verify the accuracy of screw placement.

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Main Results:

  • Out of 24 screws placed, 23 were accurate.
  • One SI screw showed ventral cortex perforation of the sacrum on postoperative CT, without clinical symptoms.

Conclusions:

  • CT-based navigation is indicated for minimally displaced acetabular fractures and SI screw fixation in cases of sacral dysplasia.
  • C-arm based navigation is the preferred method for SI screw fixation in traumatic or degenerative instabilities, particularly when reduction is needed.