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Related Experiment Videos

Lumbar instability: a dynamic approach by traction-compression radiography.

O Friberg

    Spine
    |March 1, 1987
    PubMed
    Summary

    Traction-compression radiography effectively diagnoses translatory segmental instability in patients with spondylolisthesis or retro-olisthetic displacement. This method correlates instability with low-back pain severity, unlike maximal displacement alone.

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    The statics of postural pelvic tilt scoliosis; a radiographic study on 288 consecutive chronic LBP patients.

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    Area of Science:

    • Orthopedics
    • Radiology
    • Spine Surgery

    Background:

    • Translatory segmental instability is a key factor in low-back pain (LBP).
    • Diagnosing instability can be challenging with conventional methods, especially in spondylolisthesis.

    Purpose of the Study:

    • To evaluate the efficacy of traction-compression radiography in diagnosing and measuring translatory segmental instability.
    • To investigate the correlation between spinal instability and low-back pain severity.

    Main Methods:

    • 117 patients with spondylolisthesis or retro-olisthetic displacement underwent axial traction and compression.
    • Lateral spot radiography was used to measure anteroposterior translatory movement.
    • Correlation analysis was performed between displacement, instability, and low-back pain severity.

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    Main Results:

    • Translatory segmental instability was detected in a significant proportion of patients across different types of spondylolisthesis and retro-olisthetic displacement.
    • Instability, not maximal displacement, showed a significant correlation with low-back pain severity.
    • Traction-compression radiography identified instability missed by conventional flexion-extension radiography.

    Conclusions:

    • Traction-compression radiography is a practical and sensitive method for diagnosing translatory segmental instability.
    • This diagnostic approach aids in understanding the relationship between spinal instability and low-back pain.