The ambiguity of sciatica as a clinical diagnosis: A case series.

Sciatica as a clinical diagnosis is nonspecific. A diagnosis of sciatica is typically used as a synonym for lumbosacral radiculopathy. However, the differential for combined low back and leg pain is broad, and the etiology can be one several different conditions. The lifetime prevalence of sciatica ranges from 12.2% to 43%, and nonsuccessful outcomes of treatment are prevalent. Nurse practitioners and other primary care clinicians often have minimal training in differential diagnosis of the complex causes of lower back and leg pain, and many lack adequate time per patient encounter to work up these conditions. Differentiating causes of low back and leg pain proves challenging, and inadequate or incomplete diagnoses result in suboptimal outcomes. Chiropractic care availability may lessen demands of primary care with respect to spinal complaints, while simultaneously improving patient outcomes. The authors describe three patients referred from primary care with a clinical diagnosis of sciatica despite differing underlying pathologies. More precise clinical terminology should be used when diagnosing patients with combined low back and leg pain. Nurse practitioners and other clinicians' triage, treat, and determine appropriate referrals for low back and leg pain. Multidisciplinary care including chiropractic may add value in settings where patients with lower back and leg pain are treated.