ArticleJournal of experimental orthopaedics2023
Posterior stability of the shoulder depends on acromial anatomy: a biomechanical study of 3D surface models.
Article in Journal of experimental orthopaedics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 16 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
16 citing papers in PubMed, 18 citations in OpenAlex.
- Anterior coracoid coverage and the glenoid roof morphometry: a radiographic model of directional shoulder instability.JSES international · 2026Article
- Antero-inferior glenohumeral instability is associated with an abnormal position of the coracoid process.JSES international · 2026Article
- [Static posterior humeral subluxation without osteoarthritis (posterior shoulder instability type C1) : Where does it come from and is there a solution?]Orthopadie (Heidelberg, Germany) · 2026Review
- Correction of Static Posterior Shoulder Subluxation Through Correction of Acromial and Glenoid Deformities (SCOPE) Is Maintained at 5 Years: A Concise Follow-up of a Previous Report.JBJS case connector · 2026Article
- Is acromial morphology different in patients with eccentric glenohumeral osteoarthritis?Journal of shoulder and elbow surgery · 2026Article
- Bony Lesion Severity in First-Time Posterior Shoulder Dislocation: The Role of Glenoid and Acromial Morphology.Orthopaedic journal of sports medicine · 2026Article
- Scapular Morphology and Posterior Shoulder Stability: Biomechanical Evidence From an Advanced Cadaveric Shoulder Simulator.The American journal of sports medicine · 2026Article
- Acromial Osteotomy for Dynamic Posterior Shoulder Instability.Arthroscopy techniques · 2026Article
- Traumatic posterior shoulder dislocation with associated acromion fracture: a report of 2 cases.JSES reviews, reports, and techniques · 2026Article
- Scapular (glenoid and acromion) osteotomies for the treatment of posterior shoulder instability: technique and preliminary results.JSES international · 2025Article
- Preosteoarthritic static posterior humeral subluxation in young adults (posterior shoulder instability type C1): associative factors, diagnosis, and treatment.JSES reviews, reports, and techniques · 2025Review
- Article
- Posterior shoulder instability - A systematic review and meta-analysis of glenoid osteotomy and bone block procedures.JSES reviews, reports, and techniques · 2025Review
- Analysis of osseous shoulder morphology and muscle volume in concentric and eccentric osteoarthritis of the shoulder.JSES international · 2025Article
- Good functional outcome but high rates of instability recurrence after posterior open-wedge glenoid osteotomy for the treatment of posterior shoulder instability with increased glenoid retroversion at mid-term follow-up.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Correction: Posterior stability of the shoulder depends on acromial anatomy: a biomechanical study of 3D surface models.Journal of experimental orthopaedics · 2023Article
Corrections and comments
- Erratum issued
Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposePrimary glenohumeral osteoarthritis is commonly associated with static posterior subluxation of the humeral head. Scapulae with static/dynamic posterior instability feature a superiorly and horizontally oriented acromion. We investigated whether the acromion acts as a restraint to posterior humeral translation.
methodsFive three-dimensional (3D) printed scapula models were biomechanically tested. A statistical shape mean model (SSMM) of the normal scapula of 40 asymptomatic shoulders was fabricated. Next, a SSMM of scapular anatomy associated with posterior subluxation was generated using data of 20 scapulae ("B1"). This model was then used to generate three models of surgical correction: glenoid version, acromial orientation, and acromial and glenoid orientation. With the joint axially loaded (100N) and the humerus stabilized, an anterior translation force was applied to the scapula in 35°, 60° and 75° of glenohumeral flexion. Translation (mm) was measured.
resultsIn the normal scapula, the humerus translates significantly less to contact with the acromion compared to all other configurations (p < .000 for all comparisons; i.e. 35°: "normal" 8,1 mm (± 0,0) versus "B1" 11,9 mm (± 0,0) versus "B1 Acromion Correction" 12,2 mm (± 0,2) versus "B1 Glenoid Correction" 13,3 mm (± 0,1)). Restoration of normal translation was only achieved with correction of glenoid and acromial anatomy (i.e. 75°: "normal" 11 mm (± 0,8) versus "B1 Acromion Correction" 17,5 mm (± 0,1) versus "B1 Glenoid Correction" 19,7 mm (± 1,3) versus "B1 Glenoid + Acromion Correction" 11,5 mm (± 1,1)).
conclusionsPersistence or recurrence of static/dynamic posterior instability after correction of glenoid version alone may be related to incomplete restoration of the intrinsic stability that is conferred by a normal acromial anatomy. LEVEL OF EVIDENCE V: biomechanical study.
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