Lower Back Pain, PT or Injections

The below recent article from Reuters shows that injections for disc herniations provide only short temporary relief. Recall a recent study that showed injections with saline into the spine also produced the same pain reduction response as steroids. This shows a strong placebo effect, and that active exercise physical therapy still is the best choice for long term effective pain management and return to function.

Spinal epidural injections of steroids may relieve low back pain from a ruptured disc, but only briefly, a new study shows.

And the injections offer no significant relief for pain related to narrowing of the spaces around the spinal cord, the researchers say.

Some earlier studies have reached similar conclusions, but others have shown some benefit. Meanwhile, the use of epidural steroid injections has been increasing in the face of contradictory guidelines for physicians.

To clarify this confusing situation, Dr. Roger Chou from Oregon Health & Science University in Portland and colleagues sorted through the evidence from 63 published reports about the use of epidural steroid injections for treating low back pain from ruptured discs or spinal narrowing.

“I think the important thing is for patients and clinicians to be able to make informed decisions,” Chou told Reuters Health by email. “Epidural corticosteroid injections are perceived as being more effective than they are.”

Spinal steroid injections brought immediate relief of pain and improvement in function in patients with ruptured discs, but not in patients with spinal narrowing, or stenosis, the researchers reported in Annals of Internal Medicine.

Injections also seemed to reduce the need for disc surgery in the short term.

But in the long term, the effects of injecting steroids epidurally were no better than the effects of a placebo, the researchers say, and there was no reduction in the need for surgery.

It didn’t seem to matter what specific injection technique or which particular steroid was used.

Serious complications of the injections were rare in this study, according to the authors. Minor complications included blood clots, bleeding, and nerve root irritation.

If patients and clinicians understand that benefits of these injections are small and short-lived, they may sometimes still decide to try them, Chou said.

“Unfortunately, there are not a lot of great treatments for these conditions besides surgery, so the options for treatment are limited,” he added. “I do let patients know that the natural history for both of these conditions is for improvement over time.”

The new analysis seems unlikely to settle any controversies, however.

Dr. Zack McCormick, who specializes in physical medicine and rehabilitation at Northwestern University Feinberg School of Medicine in Chicago, told Reuters Health by email that because the studies available for analysis by Chou’s team were of low quality, the conclusions “cannot be applied to the realistic day-to-day practice of spine medicine.”

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“The goal of epidural steroid injection is not for long term ‘cure,’ but rather to (improve) symptoms in order to allow restoration of sleep, quality of life, and tolerance of physical therapy,” McCormick said.

“Epidural steroid injections should not be used as an isolated therapy,” he added. “More studies are needed which show outcomes of epidural steroid injections in conjunction with a multi-modal approach that includes physical therapy, oral medications, and other adjunctive treatments, as this represents true clinical practice.”

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