Morphine for bladder issues after knee replacement
Treatments studied
Part of Bones, joints & muscles, Kidney & urinary clinical trials.
This study tests whether adding morphine to spinal anesthesia can reduce trouble urinating after a second knee replacement surgery. It may help you avoid needing a catheter after surgery.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are having a second knee replacement (not the first one) and it is not due to infection.
- You are 21 or older and generally healthy enough for surgery (ASA class I-III).
- You have no history of alcohol or drug dependence.
- Your BMI is under 45.
- You are not allergic to the medications used (like numbing medicines, painkillers, or sedatives).
- You have not taken strong painkillers (opioids) regularly in the last 2 weeks.
- You are willing to have a nerve block and a small tube for pain medicine near your knee.
- You can speak and understand English.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This trial tests different doses of morphine given during spinal anesthesia to find the safest and most effective way to control pain after hip replacement surgery. If you are having a total hip replacement, you may be able to join.
This trial compares two types of pain relief after a hip replacement: a nerve block (injecting numbing medicine near the hip) versus a small dose of morphine given through a spinal needle. It aims to find out which option works better with fewer side effects.
This study compares different ways to manage pain during and after hip replacement surgery in older adults. Researchers will test whether a spinal injection with morphine works better than a nerve block (with or without a steroid), aiming to find the approach that gives the best pain relief with fewer side effects.
This study tests whether adding a small dose of morphine to a numbing injection near the spine (called erector spinae plane block) provides better pain relief after midline belly surgery. It may help reduce the need for other pain medicines and improve recovery.
This study compares two ways to manage pain after hip surgery: a nerve block (a numbing injection near the hip) versus a spinal injection of morphine. The goal is to see which method provides better pain relief and fewer side effects.
This trial tests whether a single injection of morphine into the fluid around the spine can provide better pain relief after planned laparoscopic or robotic abdominal surgery. If you are having one of several types of major abdominal surgery that lasts at least 2 hours and requires a hospital stay of at least 1 day, this study may be an option.
Hear when a new Nerve Block trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.