Characterization and Risk Factor Analysis for Reoperation After Microendoscopic Diskectomy

Area of Science:

• Neurosurgery
• Orthopedic Surgery
• Spinal Surgery

Background:

• Microendoscopic diskectomy is a common procedure for lumbar disk herniation.
• Understanding reoperation rates and risk factors is crucial for patient outcomes.

Purpose of the Study:

• To identify causes and characteristics of reoperation after microendoscopic diskectomy.
• To evaluate risk factors associated with revision spinal surgery for lumbar disk herniation.

Main Methods:

• Retrospective analysis of a population-based database of 1263 patients undergoing microendoscopic diskectomy.
• Assessment of 952 eligible patients, with 58 requiring revision surgery.
• Multivariate logistic regression analysis to identify significant risk factors.

Main Results:

• The cumulative reoperation rate reached 8.17% after nearly 10 years.
• Reoperated patients were older and showed higher lumbar degeneration, including severe Modic changes and adjacent disk degeneration.
• Adjacent segment degeneration (OR 2.448) and Pfirrmann grading (OR 1.510) were significant risk factors for reoperation.

Conclusions:

• Microendoscopic diskectomy for lumbar disk herniation has a relatively low reoperation incidence.
• Adjacent segment degeneration and Pfirrmann grading are significant predictors of reoperation.
• Careful evaluation of treatment options is recommended for patients with these risk factors.