Apart from this, experimental studies have shown that hyperbaric oxygen therapy [16], etanercept (a tumor necrosis factor-alpha inhibitor used to treat rheumatic diseases) [17], ketoprofen (a nonsteroidal antiinflammatory drug) [18], and verapamil (a calcium channel blocker) [19] reduced EF formation after laminectomy. Here, TNF is linked to rheumatic disorder.