Excellent survivorship and improved active shoulder range of motion 5 years post-reverse total shoulder arthroplasty with mini-augmented glenoid baseplate and mini-humeral tray.
6 affiliations
- 1Louisville Institute of Orthopaedics, Louisville, KY, USA.
- 2Andrews Research and Education Foundation, Gulf Breeze, FL, USA.
- 3Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA, USA.
- 4Department of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI, USA.
- 5Department of Orthopaedic Surgery, University of Louisville, Louisville, KY, USA.
- 6Department of Orthopaedics, State University of New York at Buffalo, Buffalo, NY, USA.
Abstract
Following reverse total shoulder arthroplasty (rTSA) scapular notching and biomechanical impingement can increase pain and decrease function. Mini-augmented glenoid baseplate (AGB) and offset humeral tray use may improve biomechanics, correct glenoid bone deficiency, and decrease complications. This 5-year post-rTSA study is the follow-up to a previous 2-year patient outcome study. The hypothesis was that 5-year patient outcomes would be comparable or better than those observed at 2 years with the lower implant profile group displaying superior active range of motion (ROM) and patient-reported outcome measurement (PROM) results. Ninety-eight patients received 1 of 3 different glenoid baseplate and humeral tray combinations: group 1 (mini-AGB and a 44-mm concentric humeral tray), group 2 (non-AGB and a 40-mm, mini-humeral tray with 3 offset options), or group 3 (mini-AGB and 40-mm mini-humeral tray with 3 offset options). Patients underwent radiologic evaluations, completed the American Shoulder and Elbow Society shoulder score, the EuroQol 5-Dimension 5-Level questionnaire quality of life scale, visual analog scale shoulder pain and instability questions, and underwent active shoulder ROM measurements pre-rTSA, and 6 weeks, 6 months, 1, 2, 3, and 5 years post-rTSA. Fifty-eight subjects completed 5-year follow-up. More group 2 subjects had mild glenoid erosion and more group 1 subjects had moderate glenoid erosion (Chi-square = 14.6, P = .006). More group 3 subjects had subscapularis repair (Chi-square statistic = 6.8, P = .03). Across the 5-year post-rTSA study period, subjects who received the combined mini-AGB and mini-humeral tray with offset option (group 3) had greater overall active shoulder flexion than group 1 (P ≤ .04), greater active shoulder external rotation (90° abducted) than group 2 (P ≤ .05), and greater active shoulder internal rotation than groups 1 and 2 (P < .001). Effect sizes were small (0.23 - 0.24). Excellent implant survival (98.3%), minimal scapular notching, and comparable PROM were observed in each group. Greater active shoulder ROM was observed in subjects that received the lower profile mini-AGB and mini-humeral tray. High implant survival, low scapular notching rates, and PROM improvements were observed for all groups.
Related
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- Comparing Short-Term Clinical Outcomes and Survivorship of Complex Revision Total Hip Arthroplasty: Custom Triflange Acetabular Implants Vs Standard Cage Reconstruction
BibTeX
@article{krupp2026excellent,
title = {{Excellent survivorship and improved active shoulder range of motion 5 years post-reverse total shoulder arthroplasty with mini-augmented glenoid baseplate and mini-humeral tray.}},
author = {Ryan Krupp and Christopher O'Grady and Brian Werner and J Michael Wiater and John Nyland and Thomas Duquin},
journal = {Journal of shoulder and elbow arthroplasty},
year = {2026},
month = sep,
doi = {10.1016/j.jsea.2026.100103},
url = {https://europepmc.org/article/MED/42999767},
note = {CC BY},
}
RIS
TY - JOUR
TI - Excellent survivorship and improved active shoulder range of motion 5 years post-reverse total shoulder arthroplasty with mini-augmented glenoid baseplate and mini-humeral tray.
AU - Ryan Krupp
AU - Christopher O'Grady
AU - Brian Werner
AU - J Michael Wiater
AU - John Nyland
AU - Thomas Duquin
PY - 2026
DA - 2026/09/30
JO - Journal of shoulder and elbow arthroplasty
DO - 10.1016/j.jsea.2026.100103
UR - https://europepmc.org/article/MED/42999767
AB - Following reverse total shoulder arthroplasty (rTSA) scapular notching and biomechanical impingement can increase pain and decrease function. Mini-augmented glenoid baseplate (AGB) and offset humeral tray use may improve biomechanics, correct glenoid bone deficiency, and decrease complications. This 5-year post-rTSA study is the follow-up to a previous 2-year patient outcome study. The hypothesis was that 5-year patient outcomes would be comparable or better than those observed at 2 years with the lower implant profile group displaying superior active range of motion (ROM) and patient-reported outcome measurement (PROM) results. Ninety-eight patients received 1 of 3 different glenoid baseplate and humeral tray combinations: group 1 (mini-AGB and a 44-mm concentric humeral tray), group 2 (non-AGB and a 40-mm, mini-humeral tray with 3 offset options), or group 3 (mini-AGB and 40-mm mini-humeral tray with 3 offset options). Patients underwent radiologic evaluations, completed the American Shoulder and Elbow Society shoulder score, the EuroQol 5-Dimension 5-Level questionnaire quality of life scale, visual analog scale shoulder pain and instability questions, and underwent active shoulder ROM measurements pre-rTSA, and 6 weeks, 6 months, 1, 2, 3, and 5 years post-rTSA. Fifty-eight subjects completed 5-year follow-up. More group 2 subjects had mild glenoid erosion and more group 1 subjects had moderate glenoid erosion (Chi-square = 14.6, P = .006). More group 3 subjects had subscapularis repair (Chi-square statistic = 6.8, P = .03). Across the 5-year post-rTSA study period, subjects who received the combined mini-AGB and mini-humeral tray with offset option (group 3) had greater overall active shoulder flexion than group 1 (P ≤ .04), greater active shoulder external rotation (90° abducted) than group 2 (P ≤ .05), and greater active shoulder internal rotation than groups 1 and 2 (P < .001). Effect sizes were small (0.23 - 0.24). Excellent implant survival (98.3%), minimal scapular notching, and comparable PROM were observed in each group. Greater active shoulder ROM was observed in subjects that received the lower profile mini-AGB and mini-humeral tray. High implant survival, low scapular notching rates, and PROM improvements were observed for all groups.
SN - 2471-5492
ER -