Spinal movement impairments in people with acute low back pain.
Kayla O Krueger, Vanessa M Lanier, Ryan P Duncan and 1 others
PMID 40440950WHAT IT FOUND
People with acute low back pain showed spinal movement impairments as often as those with chronic pain.
Modifying these impairments during the exam immediately reduced symptoms in the majority of acute cases, suggesting movement patterns are a relevant target even early in the condition.
Key findings
01The prevalence of spinal movement impairments was similar between people with acute and chronic low back pain for 7 out of 9 tests.
02Modifying spinal movement impairments during clinical tests resulted in an immediate improvement in symptoms for the majority of people with acute low back pain.
03People with chronic low back pain displayed a greater proportion of impairments during knee extension in sitting and knee flexion in prone compared to those with acute pain.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
The study design was cross-sectional, so it cannot prove that movement impairments caused the pain or that modifying them leads to long-term recovery. Symptom changes were reported immediately after the modification, which could be influenced by patient expectation or placebo effects. Impairment identification relied on clinician judgment, which may vary even with standardized criteria. The chronic pain group was older and heavier than the acute group, which could influence movement patterns independently of pain duration.
Declared interests
Funding from NIH and the Academy of Orthopaedic Physical Therapy. Authors declared no other conflicts of interest.
The easy way to misread this
Do not assume that modifying spinal movement will lead to long-term functional recovery. This study only measured immediate symptom changes during the exam, so the durability of this effect is unknown.