• World Neurosurg · Aug 2024

    Extraforaminal microdiscectomy for upper lumbar disc herniations: minimally invasive alternative surgical approach.

    • Alper Turkkan, Ahmet Bekar, and Kazım Yigitkanli.
    • Department of Neurosurgery, Medicana Hospital, Bursa, Turkey.
    • World Neurosurg. 2024 Aug 1; 188: e540e545e540-e545.

    BackgroundVarious methods and techniques have been developed for extraforaminal decompression, particularly for far lateral lumbar disc herniation. Distinct anatomical differences are noticeable in the upper levels of the lumbar spine, which may complicate the related surgical approach. This study aimed to determine the safety and efficiency of the far lateral extraforaminal approach for the upper lumbar disc.MethodsL1-2 and L2-3 migrated lumbar disc herniations were defined as upper lumbar disc herniations. 31 consecutive patients with upper lumbar disk herniation who underwent extraforaminal lumbar microdiscectomy between January 2018 and March 2022 were retrospectively investigated. The patients were assessed using the interval history, follow-up lower back and leg pain visual analog scale scores (0-100 mm), the Oswestry Disability Index (%), and modified MacNab criteria.Results31 consecutive patients with upper lumbar disk herniation (20 men and 11 women) with a mean age of 52.8 ± 10.8 years (range 31-70 years) underwent extraforaminal lumbar microdiscectomy. The preoperative and postoperative visual analog scale scores and Oswestry Disability Index were significantly different (P < 0.001). According to the modified MacNab criteria, 23 patients showed excellent improvement, 5 showed good improvement, and 3 showed fair improvement; thus, the rate of satisfactory improvement was 90.3% at the 2-year follow-up. No patients required reoperation at the operative level during follow-up.ConclusionsExtraforaminal lumbar microdiscectomy is a safe and effective minimally invasive surgical technique for treating upper lumbar disc herniation.Copyright © 2024 Elsevier Inc. All rights reserved.

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