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Effect of Spinal Ketorolac on Mechanical Hypersensitivity After a Total Hip Replacement

Hip Arthroplasty Clinical Trial

Official title:
Effect of Intrathecal Ketorolac on Mechanical Hypersensitivity After Total Hip Arthroplasty

Clinical Trial Summary

Chronic pain in patients following total hip replacement seems to be a significant problem. Previous research has shown that more effective pain management in the early postoperative period may decrease the incidence of the development of chronic pain states.

This study will evaluate whether ketorolac (a non steroidal anti-inflammatory drug) given into the spinal fluid before surgery will reduce the area of sensitivity (or pain to light touch) following surgery. Patients will be monitored during their postoperative hospital stay and then contacted by telephone at 8 weeks and 6 months after surgery and questioned about any pain they are having at their surgical site. Patients that are still experiencing pain at 6 months will be asked to return to the medical center for the study staff to assess their pain or sensitivity at the surgical site.

Clinical Trial Description

Surgery results in hypersensitivity to mechanical stimuli surrounding the wound and in a subset of patients, also results in chronic pain. The purpose of the study is to test whether intrathecal ketorolac, by selectively and effectively blocking cyclooxygenase in the spinal cord, will reduce hypersensitivity surrounding the surgical wound in patients with high risk for developing chronic pain after surgery. We have chosen to study patients having total hip arthroplasty (THA) because chronic pain seems to be a significant problem after surgery. We will sample cerebrospinal fluid (CSF) prior to injection of the study medication for subsequent prostaglandin E2 (PGE2) analysis in each patient. We will also assess each patient at 48 hours after their surgery for hypersensitivity at their surgical site. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00621530
Study type Interventional
Source Wake Forest University Health Sciences
Contact
Status Terminated
Phase Phase 2
Start date March 2008
Completion date June 2013
View Details
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