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Full-Endoscopic Isolation Zone Technique for the Treatment of Lumbar Disc Herniation
Published on: April 7, 2023
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Cranially migrated lumbar intervertebral disc herniations: A multicenter analysis with long-term outcome
Sait Ozturk1, Hakan Cakin2, Fatih Demir1
1Department of Neurosurgery, School of Medicine, Firat University, Elazig, Turkey.
Journal of Craniovertebral Junction & Spine
|April 20, 2019
Summary
Extraligamentous disc fragments are more likely to migrate cranially in lumbar disc herniation (LDH) patients. This finding is linked to the posterior longitudinal ligament
Area of Science:
- Neurosurgery
- Spinal Surgery
- Orthopedics
Background:
- Lumbar disc herniation (LDH) is a common condition.
- Disc migration can occur in various directions, impacting surgical approaches and outcomes.
- Cranial migration of disc fragments presents unique challenges.
Purpose of the Study:
- To investigate the risk factors associated with cranial migration in LDH patients.
- To analyze the anatomical factors influencing cranial disc fragment migration.
- To discuss the long-term outcomes of surgically treated LDH with cranial migration.
Main Methods:
- Retrospective analysis of 1289 patients undergoing surgery for LDH between 2012 and 2017.
- Classification of disc fragments into extraligamentous and subligamentous types.
- Calculation of cranial migration extent and correlation with fragment location.
Main Results:
- Cranial migration was observed in 4.57% of patients (59 out of 1289).
- Extraligamentous disc fragments (31 patients) showed a significantly higher rate of cranial migration compared to subligamentous fragments (28 patients) (P = 0.024).
- Caudal migration occurred in 50.73% and disc-level migration in 44.68% of patients.
Conclusions:
- Extraligamentous disc fragments have a greater tendency for cranial migration than subligamentous fragments.
- Anatomical variations in the posterior longitudinal ligament (PLL) contribute to the directional migration of disc fragments.
- Understanding these migration patterns is crucial for surgical planning in LDH.
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