Mike Roscoe, PhD, MPAS, PA-C, Alyssa Nishihira BS, BSHS, PA-S
Mike Roscoe is the PA Program Director at the University of Evansville, Indiana. Alyssa Nishihira is in her final year of the PA program at Butler University, Indianapolis; after graduation, she will be practicing at Advanced Neurosurgery in Reno, Nevada. The authors have no financial relationships to disclose.
Low back pain (LBP) is one of the most common reasons for an office visit, but most cases—at least 95%—have a benign underlying cause. Evaluation of LBP patients in the primary care setting, therefore, must focus on identifying “red flags” in the history and physical exam that suggest a significant underlying process requiring further work-up, including imaging. This evidence-based approach helps control costs and prevents the detrimental effects of unnecessary testing.
Low back pain (LBP) plagues many Americans and is a common reason for office visits in the United States. In 2010, back symptoms were the principal reason for 1.3% of office visits in the US.1 Recent data suggest that 75% to 85% of all Americans will experience an episode of LBP at least once in their lifetime.2 It is the leading cause of years lived with disability in the US3 and is a common reason for work disability. From a health care system standpoint, LBP imposes a considerable burden, accounting for more than $85 billion annually in direct costs.2
The etiology of LBP can be related to several anatomic and physiologic changes. Potential origins of LBP include, but are not limited to, pathology of the vertebrospinal ligaments, musculature, facet joints, fascia, vertebra and vertebral disks, and the extensive neurovascular components of the lumbar region. Although the potential causes of LBP are many, the majority of patients presenting with acute LBP usually improve with minimal clinical intervention within the first month. This is true even for patients who report limitations in daily activities and those with severe, acute cases of LBP.
A single standard of care for patients presenting with LBP has not been established. The wide array of choices for diagnosis and treatment of LBP is one factor that hinders the development of a standard diagnostic protocol. The challenge to clinicians when diagnosing LBP is to differentiate the patients with benign, self-limiting LBP (simple), who comprise the vast majority of LBP patients, from the 1% to 5% with a serious underlying pathology (complicated).4