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A New Volumetric Radiologic Technique to Assess Oblique Decompression After Excessive Lateral Interbody Fusion Utilizing Excessive-Decision Intraoperative Computed Tomography.

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A New Volumetric Radiologic Technique to Assess Oblique Decompression After Excessive Lateral Interbody Fusion Utilizing Excessive-Decision Intraoperative Computed Tomography.

World Neurosurg. 2018 Jan;109:59-67

Authors: Navarro-Ramirez R, Berlin C, Lang G, Hussain I, Janssen I, Sloan S, Askin G, Avila MJ, Zubkov M, Härtl R

Summary
BACKGROUND: Two-dimensional radiographic strategies have been proposed to guage the radiographic end result after oblique decompression by way of excessive lateral interbody fusion (XLIF). Nonetheless, the evaluation of neural decompression in a single aircraft might underestimate the impact of oblique decompression on central canal and foraminal volumes. The current examine aimed to evaluate the reliability and consistency of a novel three-d radiographic methodology that assesses neural decompression by volumetric evaluation utilizing a brand new technology of intraoperative fan-beam computed tomography scanner in sufferers present process XLIF.
METHODS: Prospectively collected information from 7 sufferers (9 ranges) present process XLIF was retrospectively analyzed. Three unbiased, blind raters utilizing imaging evaluation software program carried out volumetric measurements pre- and postoperatively to find out central canal and foraminal volumes. Intrarater and Interrater reliability checks had been carried out to evaluate the reliability of this novel volumetric methodology.
RESULTS: The interrater reliability between the three raters ranged from zero.800 to zero.952, P < zero.0001. The test-retest evaluation on a randomly chosen subset of three sufferers confirmed good to wonderful inside reliability (vary of zero.78-1.00) for all three raters. There was a big enhance in imply quantity ?20% for proper foramen, left foramen, and central canal volumes postoperatively (P = zero.0472; P = zero.0066; P = zero.0003, respectively).
CONCLUSIONS: Right here we reveal a brand new volumetric evaluation approach that’s possible, dependable, and reproducible amongst unbiased raters for central canal and foraminal volumes within the lumbar backbone utilizing an intraoperative computed tomography scanner.

PMID: 28826705 [PubMed – indexed for MEDLINE]

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