ArticleJournal of clinical orthopaedics and trauma2024
Eccentricity and greater size of the glenosphere increase impingement-free range of motion in glenoid lateralized reverse shoulder arthroplasty: A computational study.
Article in Journal of clinical orthopaedics and trauma, 2024. 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 2 papers.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
- Spine alignment influences shoulder range of motion and scapular orientation: A systematic review from the FP-UCBM Shoulder Study Group.Journal of experimental orthopaedics · 2026Review
- Preoperative Radiographic Thoracic Kyphosis Relates to Scapular Internal Rotation but Not Anterior Tilt in Candidates for Reverse Shoulder Arthroplasty: A Retrospective Radiographic Analysis from the FP-UCBM Shoulder Study Group.Journal of clinical medicine · 2025Article
Corrections and comments
- Erratum issued
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: Increasing the impingement-free Range Of Movement (ROM) is crucial for improving patient's functional outcome and reducing the rate of scapular notching. The purpose of this study was to compare, in a virtual model of Reverse Shoulder Arthroplasty with glenoid lateralization (L-RSA): 1) the impingement-free range of movement (ROM) between 155° Grammont-style inlay stem and 135° flushlay stem; 2) the effect of glenosphere size and type (centered vs eccentric) on impingement-free range of movement (ROM) using a 135° Neck Shaft Angle (NSA) flushlay stem. Materials and methods: 200 CT-scans of patients undergoing shoulder replacement for Cuff tear Arthropathy were analyzed in the present study. Virtual implantation of L-RSA was performed using the same glenoid implant and two stems, 155° inlay Grammont-style stem and 135° flushlay stem. For 135° stem, three different glenoid size (36 mm, 39 mm and 42 mm) were tried, as well as two glenoid type (centered and eccentric glenoid), while for 155° stem were tried two different glenoid size (36 mm and 42 mm), as well as two glenoid type (centered and eccentric glenoid). For both stems, two different baseplates (25 mm e 29 mm) were used. Finally, impingement-free ROM for each configuration and each stem was then calculated by the software and collected. Results: Increasing the glenosphere size demonstrated an increase in impingement-free ROM in both 25 mm and 29 mm baseplate groups (p < 0.01). Similarly, using eccentric glenoid type improved impingement-free ROM in the two subgroups (p < 0.01). When comparing inlay and flushlay designs, flushlay shows better total impingement-free ROM as well as better impingement-free ROM in all movements apart from abduction (p < 0.01). Conclusions: This study demonstrated a correlation between glenoid size and glenoid type and impingement-free ROM using 135° flushlay stems. In particular, using a greater glenoid size and eccentric glenoid type allows for more mobility. When comparing 135° flushlay stem with 155° inlay stem, 135° stem allows greater mobility in all movements except for abduction.
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