Longer-lasting spinal anesthesia for knee or hip replacement
Part of Pain clinical trials.
This study tests whether adding a medicine called dexmedetomidine to spinal anesthesia can make the numbness last longer after knee or hip replacement surgery. It may help reduce pain after surgery without extra side effects.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are 18 years or older
- You are having a total hip or knee replacement
- You are generally healthy or have well-managed medical conditions (ASA I–III)
- You do not have sleep apnea or a history of it
- You do not take certain blood pressure medicines (ACE inhibitors or calcium channel blockers)
- You do not have severe kidney or heart problems that prevent receiving extra fluids
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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