Clinique Saint Jean, France

This study looks at whether taking a small piece of ligament during routine carpal tunnel surgery can help diagnose transthyretin amyloidosis, a serious condition that often goes unnoticed until it affects the heart. Researchers will compare this new biopsy method to the standard…

This study is testing whether using a tourniquet during bunion surgery changes how much pain and swelling patients have afterward. Forty-four adults having both feet operated on the same day will be their own controls—one foot gets a tourniquet, the other does not. Researchers wi…

This study is testing whether replacing the joint at the base of the thumb can improve hand function and reduce pain in people with thumb base osteoarthritis. Researchers will follow 300 adults who have this surgery and measure their hand function before and one year after the op…

This study tests whether a numbing injection called an erector spinae plane block can lower the amount of morphine patients need after lumbar spinal fusion surgery. Researchers will compare morphine use over 72 hours in 130 adults receiving either the block or a placebo. The goal…

This study follows 150 adults for one year after ankle arthroscopy to record any complications that arise. Participants will be checked by their surgeon and physical therapist at 15 days, 3 months, 6 months, and 1 year after surgery. They will also fill out questionnaires and do …

This study looks at whether a newer, less invasive back surgery called unilateral biportal endoscopy (UBE) keeps the spine stable after removing bone or tissue that presses on nerves. Researchers will check stability with moving X-rays 3 months after surgery in 400 adults aged 50…