Plain-English translation of NCT04449146 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
This is a diagnostic study designed to help surgeons better plan shoulder replacement surgery. Before your scheduled reverse shoulder arthroplasty (a type of shoulder replacement), you would receive a special ultrasound scan that maps the position and landmarks of your shoulder bones while you're standing up. This mapping helps surgeons understand your anatomy more completely and may improve surgical outcomes.
Currently, surgeons plan shoulder replacement surgery using CT scans taken while patients lie down. This study explores whether an additional ultrasound scan performed while standing—which better reflects how your shoulder naturally sits—can provide important information that improves surgical precision and results.
You likely qualify if…
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You would receive an ultrasound scan of your shoulder during your surgical consultation or the day before your scheduled surgery—it takes about 30 minutes. A technician would use an ultrasound probe to locate and mark important bone landmarks on your shoulder (such as the shoulder blade angles and collar bone joint) while you stand without a shirt. The ultrasound probe is connected to a tablet that records the exact location of each landmark. This scan is performed in addition to the CT scan you're already having as part of your normal surgical preparation.
AI-generated summary from trial data · Jun 30, 2026 · Not medical advice
France
Sponsor
University Hospital, Brest
Enrollment target
~30 participants
Started
August 2022
Primary completion
August 2026
Age range
18 Years – 99 Years
Last updated on clinicaltrials.gov in June 2026.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
Hoel LETISSIER, Dr
University Hospital, Brest
Tell us you're interested and we'll help connect you with the research team. We'll walk you through what to expect first — no email needed to get started.