By Pat Anson, Editor

If you have lower back pain and get it treated with physical therapy first, you are significantly less likely to later need opioid medication or high cost medical services, according to a new study in Health Services Research.

Researchers at the University of Washington and George Washington University analyzed health insurance claims for over 50 million people from 2009 to 2013, tracking patients who had a new diagnosis of lower back pain.

Compared with patients who saw a physical therapist later or not at all, those who saw a physical therapist first had an 89% lower probability of having an opioid prescription, a 28% lower probability of having an MRI or advanced imaging, and a 15% lower probability of having an emergency department visit. Their healthcare costs were also significantly lower for out-patient care, pharmacy and out-of-pocket expenses.

“We found important relationships among physical therapy intervention, utilization, and cost of services and the effect on opioid prescriptions," said co-author Ken Harwood, PT, a professor of physical therapy at George Washington University.

One unexpected finding is that patients who had physical therapy first had a 19% greater chance of being hospitalized.

“Having an in-patient hospitalization is not necessarily a bad outcome for a patient. PTs (physical therapists) provide care that aims to resolve LBP (lower back pain) by addressing musculoskeletal causes first, but if the problem does not get resolved, PTs may refer patients appropriately for more specialized care,” the study found.

One out of every four Americans will experience at least one day of lower back pain every three months. Researchers say about half will be treated with opioid medication, while physical therapy (12%), exercise (19%) and psychological therapy (8%) will be recommended far less often.    

"Given our findings in light of the national opioid crisis, state policymakers, insurers, and providers may want to review current policies and reduce barriers to early and frequent access to physical therapists as well as to educate patients about the potential benefits of seeing a physical therapist first," said lead author Bianca Frogner, PhD, a professor and health economist at the University of Washington Center for Health Workforce Studies.

Lower back pain is the world’s leading cause of disability, affecting about 540 million people at any given time. But there is little consensus on the best way to treat it.

A recent series of reviews appearing in The Lancet medical journal found that lower back pain is usually treated with inappropriate tests, risky surgeries and painkillers.

“The majority of cases of low back pain respond to simple physical and psychological therapies that keep people active and enable them to stay at work,” said lead author Professor Rachelle Buchbinder of Monash University in Australia. “Often, however, it is more aggressive treatments of dubious benefit that are promoted and reimbursed.”