Informed appropriate imaging for low back pain management: A narrative review

Area of Science:

• Medical imaging
• Diagnostic radiology
• Musculoskeletal disorders

Background:

• Acute low back pain (LBP) is common, with most patients experiencing significant improvement in pain and function within the first four weeks.
• Routine imaging is often unnecessary for LBP management in primary care settings.
• Delayed imaging may be considered after six weeks of conservative management if symptoms persist or worsen.

Purpose of the Study:

• To evaluate the necessity and timing of diagnostic imaging for acute low back pain.
• To identify criteria for appropriate imaging referrals in LBP patients.
• To reduce healthcare costs associated with unnecessary imaging.

Main Methods:

• Review of current guidelines and clinical evidence regarding LBP imaging.
• Analysis of the prevalence of serious underlying conditions causing LBP.
• Assessment of the impact of imaging on healthcare costs and patient outcomes.

Main Results:

• The majority of acute LBP patients do not require routine imaging within the first six weeks.
• Imaging is indicated for patients with suspected serious conditions (e.g., cauda equina syndrome, malignancy, infection, fracture) or progressive neurologic deficits.
• Unnecessary imaging leads to increased healthcare costs and potential for iatrogenic harm.

Conclusions:

• Diagnostic imaging for LBP should be reserved for specific clinical indications, not routine use.
• Delaying imaging for six weeks in non-specific LBP without red flags is appropriate.
• Radiologists play a key role in supporting appropriate imaging decisions and interpreting findings accurately.