Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Measuring shoulder angles in patients after shoulder replacement surgery

Official title: Determination of Scapulothoracic and Glenohumeral Angles by Imaging in Patients After Shoulder Arthroplasty

Run by GCS Ramsay Santé pour l'Enseignement et la Recherche · NCT06877936 · Data updated 2026-11-12

This study is testing how shoulder angles change after reverse shoulder replacement surgery to see how well the surgery works and if there are any complications.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment25 (estimated)
SponsorGCS Ramsay Santé pour l'Enseignement et la Recherche
Academic / other
Locations1 site (Lyon)
StatusRecruiting
StartedJanuary 29, 2025
Main results expectedJanuary 29, 2026
Study endsFebruary 28, 2027
Registry record updatedMarch 14, 2025
Trial IDNCT06877936 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are patients who have had reverse total shoulder arthroplasty performed by Dr. Lionel Neyton at least 24 months prior to the study.

Probably not a fit

Patients with contraindications to the EOS examination or those with a history of significant shoulder injuries or surgeries may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to assess the scapulothoracic and glenohumeral angles in patients who have undergone reverse total shoulder arthroplasty. It involves imaging techniques, specifically the EOS exam, to evaluate the anatomical changes and potential complications following the surgery. Patients will also complete questionnaires to provide functional assessments of their shoulder. The goal is to better understand the long-term outcomes and stability of reverse shoulder prostheses.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding of shoulder prosthesis performance and better patient outcomes in terms of mobility and stability.

How similar studies have gone: While similar studies have explored shoulder arthroplasty outcomes, this specific approach using EOS imaging for angle determination is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Major
* Reverse total shoulder arthroplasty surgery performed by Dr. Lionel Neyton (Jean Mermoz Private Hospital,69008 Lyon) 24±3 months prior to inclusion in the study.
* Have had a CT scan of the operated shoulder prior to the operation
* Patient having signed informed consent
* Patient affiliated to a social security scheme or beneficiary of such a scheme, according to Article L.1124-1 of the Public Health Code

Exclusion Criteria:

* Contraindication to the EOS® examination
* Anthropometry incompatible with the production of EOS images
* Pregnant, parturient, breastfeeding women
* Have a history of fracture at the level of the humerus, scapula or clavicle
* Have a history of surgery on the shoulder or contralateral upper limb to the limb with the prosthesis
* Protected patient: adult under guardianship, curatorship or other legal protection, deprived of liberty by judicial or administrative decision

Where it's running

  • Hopital privé Jean Mermoz
    Lyon, France
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.