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The Impact of Epidural Fat Resection on Postoperative Outcomes in Posterior Surgery of Lumbar Spine

Spinal Stenosis Clinical Trial

Clinical Trial Summary

Posterior lumbar epidural fat commonly had been considered a simple space-filling tissue. Anatomic studies on posterior epidural space and its contents are few, including semifluid property. In other words, there has not been studied thoroughly regarding the significance and role of posterior epidural fat in lumbar spine. In adults, epidural fat situated in the posterior triangle limited by the lamina, the ligamentum flavum, and the posterior surface of thecal sac. The fat tissue was covered by a thin membrane of connective tissue, which were free under this layer. The anterior surface of this membrane lay close to the dura mater without any attachment.

To date, the epidural fat has been resected routinely by pituitary forcep and suction drainage during posterior lumbar surgery. However, the investigators focused on the role of epidural fat, which might be associated with postoperative outcome. The investigators thought that this peculiar character, epidural fat, should be caused by certain etiologies. In general, each tissue, such as epidural fat, has its inherited features and significance, thereby the epidural fat has also specific role. However, there has not been fully studies regarding it. Thus, the investigators aimed to evaluate the impact of the posterior epidural fat on the postoperative outcomes such as pain intensity and functional outcomes by whether the epidural fat would be resected or not during posterior decompressive surgery. The investigators hypothesized that the epidural fat would be associated with postoperative pain intensitive, functional outcomes, and complications of the surgery such as failed back surgery syndrome. In this study, new device for resection of epidural fat was not utilized, but just resected with conventional devices such as pituitary forcep.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02127008
Study type Interventional
Source Seoul National University Hospital
Contact
Status Completed
Phase N/A
Start date February 2013
Completion date July 2014
View Details
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