Lumbar synovial cysts: experience with nine cases

Area of Science:

• Neurosurgery
• Spinal Surgery
• Radiology

Background:

• Lumbar spinal cysts can cause significant neurological symptoms.
• Accurate differentiation of cyst types is crucial for effective treatment.

Purpose of the Study:

• To review surgical outcomes for various lumbar spinal cysts.
• To compare imaging modalities for cyst detection.
• To evaluate the efficacy of surgical intervention.

Main Methods:

• Retrospective review of nine surgically treated patients with lumbar spinal cysts.
• Analysis of cyst types: synovial, ganglion, posterior longitudinal ligament, and ligamentum flavum.
• Comparison of Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) findings.

Main Results:

• Synovial cysts showed continuity with facet joints and epithelial lining.
• Ganglion, posterior longitudinal ligament, and ligamentum flavum cysts lacked facet joint continuity.
• MRI demonstrated cysts more effectively than CT.
• All patients experienced relief from nerve root compression or spinal canal narrowing.
• Six patients had excellent and three had good surgical outcomes.
• One patient experienced recurrence and required reoperation.

Conclusions:

• Lumbar spinal cysts are a treatable cause of radiculopathy and neurogenic claudication.
• Surgical intervention yields favorable results for symptomatic lumbar spinal cysts.
• Distinguishing cyst types based on imaging and surgical findings is important for prognosis.