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Journal of Korean Neurosurgical Society 2005;38(2): 111-115.
Simultaneous Paraspinal and Midline Approach for Upper Lumbar Disc Herniation: Technique to Prevent Lamina Fracture.
Seok Won Kim, Ho Shin
Department of Neurosurgery, College of Medicine, Chosun University, Gwangju, Korea. chosunns@hanmail.net
Upper lumbar disc herniation is rare disease, compared with lower. The lamina of this high level lumbar vertebra is narrower than that of low level, and this have taken surgeon into important consideration for surgical methods because partial removal of lamina for discectomy weakens the base of the articular process and may result in fracture. The authors an accurate preoperative diagnosis that enables the surgeon to operative approach for preserving the facet joint. METHODS: Thirteen patients with upper lumbar disc herniation have underone surgical procedure by midline approach for removal of ruptured disc fragment and paraspinal approach for removal of residual disc materials simultaneously without instrumentation. All patients who underwent surgery were analyzed and long-term follow-up was conducted. RESULTS: At a mean follow-up of 24months, there were complete resolution of presenting radiating leg pain in 85% of the patients, 7.5% were left with minimal residual discomfort, and 7.5% derived little or no benefit from surgery. The follow-up radiologic findings of all patients shows that lamina and facet joint have preserved safely and no instability. CONCLUSION: Simultaneously, paraspinal with midline approach provides highly satisfactory operating methods by simplifying exposure and greatly limiting the risk of complications. This provides the basis for a planned surgical approach in which destruction of the facet joint can be avoided.
Key Words: Upper lumbar disc herniation; Paraspinal approach; Midline approach
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