A term used to describe MSK lower back pain

Arising from anatomical structures

Most common cause of lower back pain, must rule out other differentials (<5% of lumbar back pain have a serious cause)

Risk factors

• Poor working conditions (long periods of sitting are NOT significant)
• Smoking
• Obesity
• Low socioeconomic status

Pathology

• Damage to muscles, soft tissues of lower back - result of posture, physical activity, lifting etc.
• Most commonly due to disorders of facet joints - then cause damage to surrounding tissue
• Cycle of muscle spasm>pain>spasm>pain

PC

• Lower back pain
• Pain worse on movement (bending, twisting)
• Relived by rest, at night
• May or may not be a history of a specific history