Lumbar Sprain/Strain from MVA

Understanding Lumbar Sprain/Strain from MVA

Also known as: Lower Back Strain, Lumbar Sprain, Low Back Pain After Car Accident, Lumbosacral Strain Lumbar sprain/strain is the most common post-MVA lumbar diagnosis, and while the term sounds minor, the pain can be significant and the recovery can stretch over weeks — particularly when undertreated. A lumbar sprain is injury to the ligaments of the lower back; a strain involves the muscles or tendons, most commonly the paraspinals and quadratus lumborum. The key clinical distinction from disc-related injury: the pain stays in the back or spreads only into the buttock or hip — no leg pain, numbness, or weakness. Many patients don't feel their back the day of the crash.

The pain arrives 24-72 hours later as inflammation peaks. Bending, twisting, getting out of a car, and transitioning from sit to stand are worst. Long drives reliably reproduce the pain. In a rear-end collision, the pelvis is driven forward by the seat while the torso lags — producing flexion-distraction through the lumbar spine.

Side-impact adds rotational shear, particularly damaging to the ligaments. Evidence strongly supports early active care — bed rest delays recovery. Our approach includes lumbar manipulation or mobilization, flexion-distraction, McKenzie exercises when indicated, motor control training, soft-tissue therapy, and modalities including Class IV laser, electrical stimulation, or PEMF. About 10-20% of lumbar sprains become chronic without appropriate care — which is why we push for full recovery rather than just symptom relief, and why documentation at every visit matters.

We may recommend: diversified adjustments, flexion-distraction/Cox, McKenzie protocol, myofascial release, Graston/IASTM, Class IV laser, corrective exercise Seek immediate care if: You develop new leg weakness, numbness in the groin or inner thighs, loss of bladder or bowel control, or severe escalating pain — these may indicate cauda equina syndrome requiring emergency evaluation.