Variability in Assessing Spinopelvic Parameters With Lumbosacral Transitional Vertebrae: Inter- and Intraobserver Reliability Among Spine Surgeons

Spine
Amrit S KhalsaInternational Spine Study Group

Abstract

Prospectively collected survey study OBJECTIVE.: The aim of this study was to determine the consistency with which spinopelvic parameters (SPP) are determined in patients with lumbosacral transitional vertebrae (LSTV). The incidence of LSTV in the general population is as high as 35.6%. The often fixed nature of LSTV relative to the pelvis, but lumbar-type appearance, may lead to differential use of the S1 endplate when performing SPP assessment. This could have significant impact on SPP derived from these landmarks, resulting in considerable variation in surgical planning and decision-making. Twenty patients demonstrating LSTV on standing lateral 36-inch spinal radiographs were randomly arranged and independently analyzed by 16 experienced spine surgeons using the same computer software. Pelvic incidence (PI), pelvic tilt (PT), lumbar lordosis (LL), and T1 pelvic angle (TPA) were captured. Two weeks after the first assessment, surgeons repeated the measurements after image sequence re-randomization. Intraclass correlation coefficient (ICC) was calculated to evaluate interobserver reliability (IOR) for each SPP. Intraobserver reliability (IAOR) was assessed through an average Pearson correlation coefficient for each parameter f...Continue Reading

References

Jul 1, 1982·Spine·G C RobinJ Menczel
Apr 28, 2005·The Journal of Bone and Joint Surgery. British Volume·T AiharaH Moriya
Sep 29, 2011·The Spine Journal : Official Journal of the North American Spine Society·Alexios ApazidisJeffrey M Spivak
Nov 13, 2013·The Spine Journal : Official Journal of the North American Spine Society·Nadja A Farshad-AmackerMazda Farshad
Oct 28, 2016·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·R PriceK Hasegawa

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