Measuring shoulder angles in patients after shoulder replacement surgery

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

Not applicable Interventional Ramsay Générale de Santé · NCT06877936

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

PhaseNot applicable
Study typeInterventional
Enrollment25 (estimated)
Ages18 Years and up
SexAll
SponsorRamsay Générale de Santé Academic / other
Locations1 site (Lyon)
Trial IDNCT06877936 on ClinicalTrials.gov

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.

Who should consider this trial

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.

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.

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

Eligibility criteria

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 this trial is running

Lyon

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Arthropathy Shoulder
Last reviewed 2026-06-13 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.