Increased paraspinal muscles fatty infiltration and ligamentum flavum hypertrophy as independent predictors of posterior revision surgery following lateral lumbar interbody fusion with lateral plate fixation: a retrospective study

Key Points

• This research aims to identify predictors for the need for revision surgery following lateral lumbar interbody fusion with lateral plate fixation.
• Conducted a retrospective review of patients who underwent lateral lumbar interbody fusion with lateral plate fixation.
• Evaluated the fatty infiltration grade of the lumbar multifidus muscle and the degree of ligamentum flavum hypertrophy.
• Analyzed surgical outcomes and rates of revision surgery.
• Increased fatty infiltration in paraspinal muscles correlated with higher revision surgery rates.
• Greater ligamentum flavum hypertrophy was independently associated with the need for posterior revision surgery.