Lumbar Multifidus Intramuscular Fat Concentrations are Associated With Recovery Following Decompressive Surgery for Lumbar Spinal Stenosis: A Longitudinal Cohort Study With Five-Year Follow-Up.

ABSTRACT:

Study design

Longitudinal cohort study.

Objective

To explore the association between preoperative lumbar paraspinal intramuscular fat (IMF) and recovery over a five-year period following surgical decompression for lumbar spinal stenosis (LSS)-related intermittent neurogenic claudication.

Summary of background data

The literature is inconclusive whether higher IMF concentrations on MRI are related to unfavorable outcomes following lumbar decompressive surgery for intermittent neurogenic claudication due to LSS.

Materials and methods

Patients (N=149) with LSS-related intermittent neurogenic claudication [52% male; mean (SD) age: 65.5 (9.1) yr; BMI: 27.9 (4.3)] were included for this study. Preoperative lumbar paraspinal IMF was quantified and categorized as nonse

SUBMITTER: Wesselink EO 

PROVIDER: S-EPMC12226431 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature