Shoulder Impingement SyndromeACROMIALNCT07889583
Acromial Morphology: Reliability of CT-based Assessment and Relationship With Age in a Series of 420 Patients
An observational study of Shoulder Impingement Syndrome and Acromial Morphology, run by University Hospital, Strasbourg, France at 1 site in France.
Trial summary
This study evaluates the reliability of CT-based assessment of acromial morphology and its relationship with age, in order to improve understanding of shoulder pathologies such as subacromial impingement and rotator cuff tears. Read more about this study
- Who is it for?
- Ages 20 to 98 years
- Conditions the study is for
- Shoulder Impingement Syndrome, Acromial Morphology
- How many people
- 420 participants
- Where
- 1 siteFrance
- Study dates
- 22 Jan 2026to 22 Jan 2027
- Phase
- Observational
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 20 to 98 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Patients who underwent shoulder CT or arthro-CT at Strasbourg University Hospitals between 2009 and 2023, stratified by age groups, and included for analysis of acromial morphology.
Who may be able to join
- Subjects aged 20 to 89 years
- Shoulder CT or arthro-CT performed at Strasbourg University Hospitals
- Examination performed between 02/01/2009 and 11/12/2023
- Independent indication for imaging
- No documented opposition to reuse of medical data for research
Who cannot join
- Imaging not performed
- Poor image quality
- Inability to perform 3D reconstruction
- Duplicate examination within the same age group
- History of acromial fracture
- Previous surgery interfering with acromial analysis (arthroplasty, acromioplasty, osteosynthesis, arthrodesis)
- Shoulder pathology interfering with acromial analysis (severe acromioclavicular arthropathy, humeral head osteonecrosis, glenohumeral dysplasia)
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
France1 site, 1 recruiting
- Recruiting
Service de Chirurgie Orthopédique du Membre Supérieur - CHU de Strasbourg - France
Strasbourg, 67091
Philippe CLAVERT, MD, PhD, 33 3 88 11 67 68, philippe.clavert@chru-strasbourg.fr
Philippe CLAVERT, CLAVERT
About this study
This study evaluates the reliability of CT-based assessment of acromial morphology and its relationship with age, in order to improve understanding of shoulder pathologies such as subacromial impingement and rotator cuff tears.
Read the detailed description
This is a retrospective monocentric observational study conducted at Strasbourg University Hospitals including 420 patients who underwent shoulder CT or arthro-CT between 2009 and 2023. Acromial morphology is assessed using the Bigliani classification on 3D reconstructions. The study evaluates intra- and inter-observer reliability using kappa coefficients and explores the relationship between acromial shape and patient age. Data are collected retrospectively from medical records and imaging software, with repeated assessments performed at 3 and 6 months to evaluate reproducibility.
- Conditions
- Shoulder Impingement Syndrome, Acromial Morphology
- Keywords
- Acromion, Shoulder impingement, Computed tomography
- Medical subject headings
- Shoulder Impingement Syndrome
What is being measured
The primary outcome is the main question the study is designed to answer.
Intra-Rater and Inter-Rater Reliability of the Bigliani Classification of Acromial Morphology
Acromial morphology will be classified as Type I (flat), Type II (curved), or Type III (hooked) according to the Bigliani classification, using 3D-reconstructed shoulder CT scans or CT arthrography images. Intra-rater and inter-rater reliability will be assessed using kappa agreement coefficients (Cohen's kappa and Fleiss' kappa). Five evaluators will assess the images, with repeat evaluations at 3 and 6 months after the initial assessment.
Measured: Initial assessment, with repeat assessments at 3 and 6 months after the initial assessment.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Oct 2026
- Study start22 Jan 2026
- Primary completion22 Nov 2026 (estimated)
- Study completion22 Jan 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Shoulder Impingement SyndromeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Retrospective
- Enrolment
- 420 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University Hospital, Strasbourg, France
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07889583
- Sponsor's protocol ID
- RC25_0071
- Acronym
- ACROMIAL
- Status last verified
- Oct 2026
- First submitted
- 2 Oct 2026
- Last updated
- 22 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No