Multifidus Dysfunction & Chronic Low Back Pain

Written by the Specialty Medical Center editorial teamNot individually reviewed by a physicianApproved for publication by SMC, October 31, 2026How we write and review

What is multifidus dysfunction?

The multifidus is a deep back muscle that stabilizes the spine. In chronic low back pain it can lose control and shrink (atrophy), which can keep pain going. Restoring its function is the aim of targeted exercise and, for some people, restorative neurostimulation.

Common signs

Chronic mechanical low back pain
Fatty change or shrinkage of the multifidus on MRI

How it's evaluated and treated

Assessment includes an exam and MRI review. Treatment starts with targeted physical therapy; ReActiv8 may help when therapy hasn't.

Recovery and outlook

Improvement builds over months.

When to get help now

See a doctor for back pain with fever, weight loss or new weakness.

Related care

Where to get care at Specialty Medical Center

Evaluations are with our interventional pain physicians in Dearborn and Sterling Heights. Part of Neuromodulation.

Eduardo José Otero Loperena, MDInterventional pain medicine

Mohamed Osman, MDPain management

Aaron Greenberg, DOPhysical medicine and rehabilitation

Who performs procedures, and where:

Dr. Eduardo José Otero: Universal Care Surgery Center
Dr. Mohamed Osman and Dr. Aaron Greenberg: Universal Care Surgery Center and Advanced Surgery Center
Dr. Roy Torcuator: Advanced Surgery Center and Garden City Hospital

Office injections are done in our offices. Your physician confirms who performs your procedure, and where, at your consultation.

This page gives general information. Your physician will explain whether a treatment fits you, its risks and the alternatives.

Multifidus dysfunction