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Lumbar disc degeneration and sagittal flexibility
A K Burton1, M C Battié, L Gibbons
1Spinal Research Unit, University of Huddersfield, England.
Journal of Spinal Disorders
|October 1, 1996
Summary
Intervertebral disc degeneration, particularly decreased disc height, contributes to reduced lumbar flexibility in middle-aged men, alongside age, weight, and back pain. Further research is needed to identify all contributing factors.
Area of Science:
- Biomedical Engineering
- Orthopedics
- Radiology
Background:
- Lumbar flexibility is known to decrease with age, but its relationship with intervertebral disc degeneration remains unclear.
- Understanding factors influencing spinal flexibility is crucial for managing age-related musculoskeletal changes.
Purpose of the Study:
- To investigate the association between intervertebral disc degeneration parameters and lumbar sagittal flexibility in middle-aged men.
- To determine the influence of disc height, signal intensity, bulging, and osteophytes on spinal mobility.
Main Methods:
- Cross-sectional study involving 214 middle-aged men.
- Magnetic resonance imaging (MRI) used to assess disc degeneration parameters.
- Multivariate analyses employed to evaluate the relationship between degeneration and flexibility.
Main Results:
- Decreasing disc height, increasing age, weight, and back pain frequency were significant predictors of reduced lumbar flexibility.
- While individual degenerate discs might show increased mobility, overall degeneration leads to a net reduction in flexibility.
- The studied factors explained 31% of the variance in lumbar flexibility.
Conclusions:
- Intervertebral disc degeneration, characterized by reduced disc height, is associated with decreased lumbar flexibility in middle-aged men.
- Age, weight, and back pain frequency are additional contributors to reduced spinal mobility.
- The primary determinants of lumbar flexibility variance require further investigation.