Summary
Definition
History and exam
Key diagnostic factors
- obesity, stress, and psychiatric comorbidities
- history of prior lower back pain
- pain radiation does not extend beyond the knee
- absence of red-flag symptoms
- absence of fever, fluctuance, exquisite tenderness to palpation
- sensory, motor, and deep-tendon reflex examinations within normal limits
- negative straight- or crossed straight-leg raise test
Other diagnostic factors
- dull, gnawing, tearing, burning, or electric pain associated with muscle spasms
- lack of pain on flexion or relief on extension
- scoliosis or kyphosis
- negative FABER, Gaenslen's, or Schober's testing
Risk factors
- obesity
- family history of degenerative disc disease
- poor musculotendinous flexibility and abnormal posture
- stress and psychiatric comorbidities
- increasing age
- female sex
- heavy physical and occupational activities
- tobacco use
- prolonged standing
- vitamin D levels
Diagnostic investigations
1st investigations to order
- clinical diagnosis
Investigations to consider
- lumbar spine MRI
- lumbar spine x-ray
- lumbar spine CT
- myelography
- FBC
- erythrocyte sedimentation rate (ESR)
- C-reactive protein (CRP)
- urinalysis and culture
- blood cultures
- radionuclide bone scan
- electromyogram (EMG)
Treatment algorithm
acute and subacute lower back pain (≤12 weeks)
chronic lower back pain (>12 weeks)
recurrent lower back pain
Contributors
Authors
Andrew Sherman, MD, MS
Professor and Vice Chair
Department of Physical Medicine & Rehabilitation
University of Miami Miller School of Medicine
Miami
FL
Disclosures
AS declares that he has no competing interests.
Acknowledgements
Dr Andrew Sherman would like to gratefully acknowledge Dr Robert W. Irwin, Dr Louise Thwaites, Dr Karen Walker-Bone, Dr Joanne Borg-Stein, and Dr Philip Chiou, previous contributors to this topic.
Disclosures
RWI, LT, KWB, JBS, and PC declare that they have no competing interests.
Peer reviewers
Jennifer Baima, MD
Staff Physiatrist
Orthopedic and Arthritis Center
Brigham and Women's Hospital
Chestnut Hill
MA
Disclosures
JB declares that she has no competing interests.
Alexios G. Carayannopoulos, DO, MPH
Interventional Spine Physiatrist
Pain Medicine Specialist
Medical Director
Spine Center
Lahey Clinic
Burlington
MA
Disclosures
AGC declares that he has no competing interests.
Differentials
- Spinal stenosis
- Radiculopathy/sciatica
- Cauda equina syndrome
More DifferentialsGuidelines
- Diagnosis and treatment of low back pain
- Prescribing opioids for pain
More GuidelinesPatient information
Back pain (lower back)
Back pain: questions to ask your doctor
More Patient information- Log in or subscribe to access all of BMJ Best Practice
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