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Orthopedics · 6 min read · September 27, 2026
From the course: Acute Low Back Pain: The Multidisciplinary Clinical Practice Guideline · 0.5 contact hours
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What does the 2026 acute low back pain guideline recommend? Writing for the Acute Low Back Pain Guideline Project in Pain Medicine in 2026, Skelly and colleagues present a multidisciplinary clinical practice guideline for adults whose low back pain has lasted less than six weeks. The panel recommends against routine imaging when there are no signs of serious spine pathology and puts self-management that keeps people moving first. If pain is worse or unchanged after one to two weeks of self-care, clinicians should offer one or more options from a menu that includes exercise-based physical therapy and manipulation and mobilization, as a strong recommendation. Opioids should not be routinely used as initial treatment.
The guideline covers adults with atraumatic low back pain of less than six weeks' duration, with or without radiculopathy, seen in outpatient settings such as primary care, urgent care and the emergency department. It is written for clinicians of any discipline. First and repeat episodes are within scope, as are acute episodes in people who already have chronic low back pain. Subacute pain (six to 12 weeks) and chronic pain are excluded, as is traumatic low back pain.
The authors describe the prognosis as favorable for most patients. Every recommendation assumes shared decision-making, and they caution against using the guideline as a strict clinical pathway in place of clinician judgment.
The guideline development group, which included clinicians from several disciplines and a patient advocate, worked from a registered systematic review conducted by the Pacific Northwest Evidence-based Practice Center at Oregon Health & Science University with Aggregate Analytics, Inc. The group used GRADE methods to rate the certainty of evidence. The U.S. Food and Drug Administration funded the project, and the authors state that it had no approval privilege over the recommendations.
A strong recommendation means the panel judged that all or almost all people would make the recommended choice. A conditional recommendation means not everyone would, and different choices may be appropriate. The panel treats good practice statements, used where confidence in net benefit is high despite low-certainty or indirect evidence, as equivalent to strong recommendations. As the table shows, some strong recommendations rest on low-certainty evidence.
| Recommendation | Strength | Certainty of evidence |
|---|---|---|
| Do not routinely obtain imaging unless signs, symptoms or risk factors suggest serious spine pathology | Strong | Low |
| Obtain imaging with red flags, or with symptoms that persist beyond four to six weeks or progress | Good practice statement | Confidence in net benefit judged high |
| Self-management: information, reassurance that movement is safe, superficial heat, over-the-counter NSAIDs if safe | Strong | Moderate for advice; low for education and heat |
| If pain is worse or unchanged after one to two weeks, offer one or more options from the clinical management menu | Strong | Moderate, except low for psychologically informed physical therapy |
| For radiculopathy, systemic steroids and referral for consideration of epidural steroid injection | Conditional | Low |
| Do not routinely use opioids as initial treatment | Conditional | Low |
Three trials found that routine early imaging in patients without signs of a serious or specific condition did not improve pain, function or quality of life compared with usual care. The companion good practice statement calls for imaging when red flags are present or when symptoms persist beyond four to six weeks or are progressive, meaning a new or worsened neurologic deficit or increased pain intensity. The authors add that routine imaging increases costs and may lead to unnecessary injections or surgery, and that degenerative findings such as disc degeneration are frequently seen in people without symptoms.
Self-care can begin before any appointment, and usual low-impact activities should continue, adjusted for pain. The authors describe advice to stay active rather than rest in bed as a cornerstone of care; two trials found small improvements in function with that advice compared with bed rest. Two trials of superficial heat found large reductions in pain during the first day of the episode, while a third found no clear difference at one week.
The clinical management menu for patients who do not improve with self-care lists five options in no priority order: NSAID optimization, skeletal muscle relaxants, exercise-based physical therapy, manipulation and mobilization, and acupuncture. For patients at risk of chronic low back pain, the guideline adds that psychologically informed physical therapy should be considered.
The physical therapy trials were conducted in physical therapy settings, where patients received mobility, flexibility, strengthening and range-of-motion exercise, sometimes with education or manipulation and mobilization. Because of those added treatments, the authors chose the term physical therapy over exercise therapy.
| Approach | Compared with | What the authors reported | Certainty |
|---|---|---|---|
| Early physical therapy | Usual care | Moderate improvement in pain, small improvement in function | Moderate |
| Exercise-based physical therapy not specified as early | Usual care | Small improvement in pain at two to four weeks in trials using more than one session, not at other follow-up points | Low |
| Manipulation and mobilization | Sham or placebo | Small improvement in pain; moderate improvement in function at two to under four weeks in two trials | Moderate for pain, low for function |
In three of the early physical therapy trials, care started within 72 hours of enrollment. One of those trials delivered psychologically informed physical therapy, which educated patients at high risk of chronic low back pain about their condition and reduced fear of movement while also addressing mobility deficits and pain. No serious adverse events were reported with manipulation and mobilization.
The panel did not issue a separate early-referral recommendation. It reasoned that many patients improve within the first days or weeks, so referring everyone with a new episode would likely add substantial unnecessary costs and burdens, such as time off work. The authors add that clinicians may reasonably consider immediate referral to psychologically informed physical therapy, without waiting one to two weeks, when a patient has severe functional limitations or psychosocial factors linked to progression to chronic pain.
The panel also found the evidence insufficient to recommend routine use of a risk-stratified approach, such as the STarT Back tool, to guide physical therapy. Later United States trials could not demonstrate its effectiveness, although the panel still endorses considering psychosocial factors.
Across five trials, opioids were not more effective than placebo for pain or function at early follow-up and were associated with more adverse events. The panel allows a brief course of an immediate-release opioid in selected patients when benefits are likely to outweigh harms, such as severe incapacitating pain or an inability to take other medications.
Acetaminophen did not improve pain or function versus placebo in one large trial and is not recommended for routine use. The authors advise using skeletal muscle relaxants cautiously, or avoiding them, in older, frail adults, because the sedation and dizziness they often cause may raise fall risk.
The trials did not provide enough information to assess effects in subgroups defined by age, comorbidities, prior episodes or radiculopathy. Head-to-head comparisons were limited, so the guideline cannot rank first- and second-line options or identify effective combinations. For non-drug care, the authors call variability a larger issue, since benefit depends on the specific approach, the clinician's type and skill, the setting, and the frequency and duration of sessions. Opioid trials were not designed to evaluate continued use, opioid use disorder or overdose risk. The authors suggest updating the guideline within five years, or sooner if new evidence emerges.
Skelly and colleagues recommend against routine imaging for atraumatic acute low back pain unless signs, symptoms or risk factors suggest serious spine pathology. Imaging should be obtained when red flags are present or when symptoms persist beyond four to six weeks or progress.
For patients whose pain is worse or unchanged after one to two weeks of self-management, exercise-based physical therapy is one of five options in a clinical management menu that carries a strong recommendation. The panel did not recommend early referral for everyone.
The guideline says opioids should not be routinely used as initial treatment. A brief course may be used in selected patients when benefits are likely to outweigh harms, a conditional recommendation based on low-certainty evidence.
Skelly AC, Kansagara D, Oswald J, Chou R; Acute Low Back Pain Guideline Project Guideline Development Group. Assessment and treatment of acute low back pain: a multidisciplinary clinical practice guideline. Pain Med. Published online September 2, 2026. doi:10.1093/pm/pnag110
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