Epidural Fluid Collection After Percutaneous Endoscopic Lumbar Discectomy
Wei-Chiang Liu1, Gun Choi2, Sang-Ho Lee2
1Department of Radiology, Spine Health Wooridul Hospital, Seoul, Korea.
World Neurosurgery
|January 9, 2018
Summary
Epidural fluid collection is common after percutaneous endoscopic lumbar discectomy (PELD). This fluid, often saline, typically resolves on its own within 24 hours without complications.
Area of Science:
- Neurosurgery
- Spinal Surgery
- Radiology
Background:
- Epidural fluid collection following percutaneous endoscopic lumbar discectomy (PELD) is a recognized postoperative finding.
- The frequency, extent, and natural resolution of these collections have not been well-documented.
Purpose of the Study:
- To investigate the incidence and characteristics of epidural fluid collections after PELD.
- To assess the significance and resolution patterns of these collections.
Main Methods:
- Retrospective analysis of 464 patients undergoing PELD between March 2008 and November 2015.
- Immediate postoperative MRI was performed on all patients; 35 patients had a 24-hour follow-up MRI.
- Evaluation focused on the presence, location, and morphology of epidural fluid collections.
Main Results:
- Abnormal epidural fluid collection was observed in 90.1% of patients on immediate postoperative MRI.
- Ventral and dorsal epidural fluid collections were highly prevalent (87.1% and 84.7%, respectively).
- Follow-up MRIs in 30 patients showed resolution in 93.3% within 24 hours, indicating saline accumulation rather than complications.
Conclusions:
- Epidural fluid collection is a frequent occurrence after PELD.
- The collection is predominantly composed of saline and typically resolves spontaneously.
- No specific treatment or complications were associated with these resolving fluid collections.
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