246. Is the implant in bone? The accuracy of CT and fluoroscopic imaging for detecting malpositioned pelvic screw and SI fusion implants

Miguel, Jose San; Sembrano, Jonathan N.; Takahashi, Takashi; Albersheim, Melissa; Polly, David W.; Martin, Christopher T.

doi:10.1016/j.spinee.2021.05.453

Cited by 1 publication

(2 citation statements)

References 17 publications

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“…In many publications, high misplacement rates are observed, but navigated procedures were introduced to decrease the radiation and increase the accuracy of screw placement, especially in percutaneous techniques [9].…”

Section: Ofmentioning

confidence: 99%

See 1 more Smart Citation

Differences in Accuracy and Radiation Dose in Placement of Iliosacral Screws: Comparison between 3D and 2D Fluoroscopy

Kułakowski

Reichert

Elster

et al. 2022

JCM

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Percutaneous iliosacral screw fixation is a widely accepted method of stabilizing the posterior pelvic ring. Recently developed tools such as 3D-navigated fluoroscopy and computed navigation seem to prevent a surgeon from conducting screw misplacement. The study aimed to comparatively assess the introduction of sacroiliac screw placement using 2D and 3D fluoroscopy in terms of accuracy and radiation exposure. Iliosacral screws were introduced in 37 patients using 2D (group N1) and in 36 patients using 3D fluoroscopy (group N2) techniques. Overall, 61 and 56 screws were introduced in groups N1 and N2, respectively. Screw placement accuracy was assessed using postoperative computed tomography and Smith’s scale. Intraoperative radiation exposure was also assessed. No differences were noted between groups in terms of screw positioning accuracy and radiation dose. Both 2D and 3D fluoroscopy provide good visualization for safely placing percutaneous iliosacral joint screws. Using 3D fluoroscopy-based navigation in comparison with 2D fluoroscopy is not advantageous.

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Section: Ofmentioning

confidence: 99%

“…Screw malposition rates with fluoroscopic guidance have been reported as being from 2% to 15% [9,11]. The incidence of neurologic injury is reported as between 0.5% and 7.7%.…”

Section: Screw Positioningmentioning

confidence: 99%