Evidence map›Paper›PMID 42432333›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2026

Diagnostic accuracy of various methods for measuring interspinous widening in thoracolumbar posterior ligamentous complex injury shown on MRI.

Mohamed M Aly, Meshari M Almutairi, Waleed Almohammadi, Areej Al Fattani, Abdulaziz Alkhoshi, Abdulbaset M Al-Shoaibi

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Article in 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, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Mohamed M AlyDepartment of Neurosurgery, Mansoura University, Al Mansurah, Egypt. drmoali26@gmail.com.
Meshari M AlmutairiDepartment of Neurosurgery, Prince Mohammed bin Abdulaziz Hospital, Riyadh, Saudi Arabia.
Waleed AlmohammadiDepartment of Neurosurgery, Prince Mohammed bin Abdulaziz Hospital, Riyadh, Saudi Arabia.
Areej Al FattaniDepartment of Biostatistics, Epidemiology and Scientific Computing, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia.
Abdulaziz AlkhoshiDepartment of Neurosurgery, Prince Mohammed bin Abdulaziz Hospital, Riyadh, Saudi Arabia.
Abdulbaset M Al-ShoaibiAltakassusi Alliance Medical, Riyadh, Saudi Arabia.

Funding

The authors declare that this researchResearch center, King Fahd Medical City, Riyadh, Riyadh second cluster (#IRF 023-032)
6 · The paper itself

Abstract

STUDY

designretrospective single-center study. PURPOSE: To compare the accuracy of various methods to measure interspinous widening (ISW) on computed tomography (CT) in detecting posterior ligamentous complex (PLC) injuries on magnetic resonance imaging (MRI) for thoracolumbar fractures (TLFs). OVERVIEW OF LITERATURE: ISW showed varying accuracy in detecting PLC injury on MRI due to the lack of standardized methods of measurement.

methodsWe retrospectively reviewed data of 215 consecutive patients with acute TLFs (T1-L2). Three reviewers evaluated MRI and CT images. We measured four ISW parameters: (1) supraspinous distance (SSD): distance between the most posterior aspect of the two spinous processes; (2) midspinous distance (MSD): between the midpoints of the spinous processes; (3) interlaminar distance (ILD): between the most anterior aspect of lamina; and (4) interspinous angle (ISA): the angle between the two spinous processes. For SSD, MSD, and ILD, four different measurements were calculated according to the reference, either the average of upper and lower adjacent levels or whether a ratio or absolute value was used. We compared the diagnostic accuracy of various methods of ISW measurement in detecting black stripe discontinuity on MRI using the area under the receiver operating characteristic curve (AUC) and interobserver reliability using interclass correlation (ICC).

resultsAll ISW methods showed low accuracy as denoted by AUC < 0.70 (range 0.51-0.65). At the optimum threshold, there was a trend toward higher specificity and lower sensitivity. The ICC was poor for 2 measurements, moderate for 5 measurements, and good for 5 measurements.

conclusionsThis study demonstrates the limited accuracy of ISW methods in detecting PLC injury on MRI. However, ILD showed a trend toward better accuracy; there was no statistically significant difference between all methods. Therefore, ISW, or the lack thereof, especially when isolated, should be interpreted with caution as an indicator for PLC injury.

Indexed as

AccuracyComputed tomographyInterspinous wideningPosterior ligamentous complexThoracolumbar fractures

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