Different surgical approaches to far lateral lumbar disc herniations

Area of Science:

• Neurosurgery
• Spinal Surgery

Background:

• Far lateral disk herniations present surgical challenges.
• Traditional approaches like total facetectomy offer wide exposure but risk instability.
• Medial facetectomy and isolated extraforaminal approaches have limitations in visualization and access.

Purpose of the Study:

• To compare the advantages and disadvantages of various surgical techniques for far lateral disk excision.
• To emphasize the importance of selecting the most appropriate technique based on individual patient needs and lesion characteristics.

Main Methods:

• Review and assessment of different surgical approaches including total facetectomy, medial facetectomy, isolated extraforaminal, combined extraforaminal with laminotomy/hemilaminectomy/laminectomy, intertransverse (ITT) approach, transpars, percutaneous, and anterior decompressive techniques.
• Evaluation of exposure, stability, and access for medial and far lateral disk fragments and associated stenosis.

Main Results:

• Total facetectomy provides excellent exposure but increases instability risk due to pars interarticularis excision.
• Medial facetectomy preserves stability but limits visualization of far lateral compartments.
• Isolated extraforaminal approaches are limited to far lateral fragments.
• Combining extraforaminal exposure with laminotomy/hemilaminectomy/laminectomy offers access to both lateral and medial lesions.

Conclusions:

• No single surgical technique is universally applicable for all far lateral disk lesions.
• The selection of surgical approach should be tailored to the specific patient and the characteristics of the disk herniation.
• A personalized approach ensures optimal management of far lateral disk pathologies.