A New Volumetric Radiologic Methodology 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
BACKGROUND: Two-dimensional radiographic strategies have been proposed to guage the radiographic final result after oblique decompression by way of excessive lateral interbody fusion (XLIF). Nevertheless, the evaluation of neural decompression in a single aircraft could 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-dimensional 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 knowledge from 7 sufferers (9 ranges) present process XLIF was retrospectively analyzed. Three impartial, 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 assessments have 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 inner reliability (vary of zero.78-1.00) for all three raters. There was a big improve 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 show a brand new volumetric evaluation approach that’s possible, dependable, and reproducible amongst impartial raters for central canal and foraminal volumes within the lumbar backbone utilizing an intraoperative computed tomography scanner.
PMID: 28826705 [PubMed – indexed for MEDLINE]