Long-Term Lumbar Multifidus Muscle Atrophy Changes Documented With Magnetic Resonance Imaging: A Case Series

Authors

  • Mark Woodham
  • Andrew W Woodham
  • Joseph W Skeate
  • Michael D Freeman

DOI:

https://doi.org/10.3941/jrcr.v8i5.1401

Keywords:

Lumbar multifidus muscle, lumbar multifidus muscle atrophy, multifidi, chronic low back pain, MRI

Abstract

A retrospective case series of three patients with chronic low back pain who received baseline MRI scans revealing multifidus muscle atrophy with fatty replacement is provided. Each patient received spinal manipulative therapy, and two were compliant with low back exercises targeting the multifidus. A follow-up scan performed >1 year later was compared to the baseline scan revealing a decrease in atrophy with fatty replacement in the two patients who performed multifidus-focused low back exercises (15% and 39% on the left and 7% and 32% on the right respectively), and an increase in the patient who underwent spinal manipulation alone (41% and 53%). Interestingly, the decrease in atrophy in the two patients that performed the exercises correlated to functional improvements. Though limited, these results highlight the utility of MRI in quantifying positive and negative long-term changes in multifidus atrophy, which may be an indicator of recovery in chronic low back pain patients.

Author Biography

Michael D Freeman

Affiliate Professor of Epidemiology and Psychiatry, Depts of Public Health & Preventive Medicine, and Psychiatry

Published

2014-05-25

Issue

Section

Musculoskeletal Radiology