Disabling chronic low back pain with Modic type 1 MRI signal: acute reduction in pain with intradiscal corticotherapy

J Beaudreuil1, P Dieude, S Poiraudeau

  • 1Service de rhumatologie, hôpital Lariboisière, AP-HP, université Paris-7, Paris, France. johann.beaudreuil@lrb.aphp.fr

Abstract

Insights

Intradiscal methylprednisolone injections show a significant acute benefit for chronic low back pain patients with Modic type 1 MRI changes. Long-term effects were not observed in any group.

Area of Science:

  • Orthopedics
  • Radiology
  • Pain Management

Background:

  • Chronic low back pain is a prevalent condition.
  • Modic type 1 changes on MRI indicate active bone marrow edema, often associated with pain.
  • The efficacy of intradiscal methylprednisolone injections for chronic low back pain, particularly in the presence of Modic changes, requires further elucidation.

Purpose of the Study:

  • To compare the short- and long-term effects of intradiscal methylprednisolone injections on chronic low back pain.
  • To investigate the influence of Modic type 1 MRI changes on treatment response.

Main Methods:

  • Retrospective review of medical charts for patients receiving intradiscal methylprednisolone.
  • Categorization into three groups: Modic I-a (Modic type 1, no prior surgery), Modic I-b (Modic type 1, prior surgery/nucleolysis), and Control (no Modic type 1).
  • Clinical parameters assessed at baseline, 24 hours, and 12-14 months post-injection.

Main Results:

  • A higher proportion of patients with Modic type 1 changes (Modic I-a: 90%, Modic I-b: 71%) reported improvement 24 hours post-injection compared to controls (30%).
  • Low back pain decreased in both Modic groups but not in the control group at 24 hours.
  • No significant long-term effects were detected for any group at the latest follow-up.

Conclusions:

  • Patients with chronic low back pain and Modic type 1 MRI changes exhibit a specific acute response to intradiscal methylprednisolone.
  • Further clinical studies are warranted to confirm the effectiveness and safety of these injections.