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Lumbar disc degeneration in relation to occupation
K Luoma1, H Riihimäki, R Raininko
1Finnish Institute of Occupational Health, Helsinki. kluoma@dlc.fi
Scandinavian Journal of Work, Environment & Health
|December 30, 1998
Summary
Occupational load and back accidents increase the risk of lumbar disc degeneration. Specific job tasks and car driving are linked to different types of disc bulges, highlighting the impact of physical demands on spinal health.
Area of Science:
- Orthopedics
- Occupational Health
- Radiology
Background:
- Lumbar disc degeneration is a common condition affecting spinal health.
- Occupational factors and physical trauma are suspected contributors to disc degeneration.
Purpose of the Study:
- To investigate occupational load and back accidents as risk factors for lumbar disc degeneration.
- To correlate specific job tasks and accident history with MRI-demonstrable disc degeneration.
Main Methods:
- Cross-sectional study of 53 machine drivers, 51 carpenters, and 60 office workers (aged 40-45).
- Data collection via questionnaires on risk factors (current and retrospective).
- Lumbar disc degeneration (L2/L3-L5/S1) assessed using magnetic resonance imaging (MRI).
Main Results:
- Carpenters showed increased risk of posterior disc bulges; machine drivers had increased risk of anterior disc bulges.
- Car driving was associated with anterior disc bulges.
- All disc degeneration signs correlated with a history of back accidents; no relation to body height, BMI, smoking, or exercise frequency.
Conclusions:
- Occupational load significantly influences the risk of lumbar disc degeneration.
- Accidental back injuries and motor vehicle driving are associated with higher degeneration risk.
- Anterior and posterior disc bulges may result from distinct physical loading patterns.