Acromial Morphology: Reliability of CT-based Assessment and Relationship With Age in a Series of 420 Patients

NCT07889583 | Recruiting

• 1 other identifier: RC25_0071
• Study Type: observational
• Target: 420
• Locations: 1 country
• Sites: 1

Brief 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.

Conditions

Shoulder Impingement Syndrome; Acromial Morphology

Keywords

Acromion; Shoulder impingement; Computed tomography

Outcome Measures

Primary Outcomes (1)

• 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.

  Initial assessment, with repeat assessments at 3 and 6 months after the initial assessment.

Eligibility Criteria

• Age: 20 Years - 98 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

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.

You may qualify if:

• 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

You may not qualify if:

• 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)

Sponsors & Collaborators

• University Hospital, Strasbourg, France: lead

Study Sites (1)

Service de Chirurgie Orthopédique du Membre Supérieur - CHU de Strasbourg - France

Strasbourg, 67091, France

RECRUITING

MeSH Terms

Conditions

Shoulder Impingement Syndrome

Condition Hierarchy (Ancestors)

Joint Diseases; Musculoskeletal Diseases; Shoulder Injuries; Wounds and Injuries

Central Study Contacts

Philippe CLAVERT, MD, PhD

CONTACT

33 3 88 11 67 68; philippe.clavert@chru-strasbourg.fr

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: October 2, 2026
• First Posted: October 22, 2026
• Study Start: January 22, 2026
• Primary Completion (Estimated): November 22, 2026
• Study Completion (Estimated): January 22, 2027
• Last Updated: October 22, 2026

Record last verified: 2026-10

Locations

FR (1)