Risk Factors for the Recurrent Herniation After Microendoscopic Discectomy

Area of Science:

• Neurosurgery
• Orthopedics
• Spinal Surgery

Background:

• Microendoscopic discectomy (MED) is a minimally invasive technique for lumbar disc herniation.
• Recurrence of herniation after successful MED has been observed, but risk factors remain unclear.

Purpose of the Study:

• To identify significant risk factors for recurrence after microendoscopic discectomy (MED) for lumbar disc herniation.

Main Methods:

• Retrospective study of 111 patients with recurrent herniation post-MED.
• Kaplan-Meier methods and Cox regression analysis were employed.

Main Results:

• Univariate analysis identified age (≥50), obesity (BMI ≥25), treatment period, modic change, nonmigrated herniation, and central herniation as potential risk factors.
• Multivariate analysis confirmed age (≥50), obesity (BMI ≥25), and modic change as significant risk factors for recurrence.

Conclusions:

• Age (≥50 years old) is the most robust predictor of MED recurrence.
• Obesity (BMI ≥25) and modic changes are also significantly associated with recurrent lumbar disc herniation.
• Considering these risk factors preoperatively can guide personalized surgical approaches for improved outcomes and reduced recurrence rates.