Abstract
Purpose
There is a common belief among some shoulder surgeons that the increased utilization of reverse shoulder arthroplasty (RSA) is driven by the operation being performed in younger patients. The primary purpose of this study was to evaluate the change in patient age at the time of primary RSA in the USA.
Methods
All patients undergoing primary RSA (January 2011–June 2018) were identified in the Mariner database. The mean age at the time of primary RSA was evaluated for each patient and assessed in 6-month intervals. A longitudinal comparison over time was performed for all patients.
Results
A total of 56,141 primary RSA were evaluated, with the mean age increasing from 69 in the 2011 to 71 in 2018 (p < 0.001). The largest increase in RSA utilization occurred in patients > 70 (1092 in 2011 to 3499 in 2018), with patients < 50 years demonstrating the slowest growth (13 in 2011 to 65 in 2018). However, when evaluated by percentage increase from 2011 to 2018, RSA volumes for patients < 60 have increased 390% compared to 220% for those > 70 years (p < 0.001).
Conclusion
RSA continues to be performed at a similar mean age despite expanded indications and surgeon comfort. However, patients < 60 years have had a greater increase in utilization compared to patients > 70 years. The volumetric growth of RSA has largely been driven by the older population, but younger patients have shown a higher percentage of growth, which may explain the generalized observation that RSA is performed in younger patients.
Level of Evidence
Level III; Retrospective comparative study; Treatment study.
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Dr. Schoch is a paid consultant for Exactech, Inc. He receives royalties from Exactech Dr. Wright receives royalties from Exactech, Inc., and Wolters Kluwer Health—Lippincott Williams & Wilkins. He is also a paid consultant with Exactech, Inc. Dr. King owns stock in Pacira Phamaceuticals and is a paid consultant with Exactech, Inc. Dr. Werthel receives royalties from FH orthopedics. Dr. Brockmeier is a paid consultant for Exactech and Arthrex and receives royalties from Zimmer Biomet and Exactech. Dr. Werner is a paid consultant for Arthrex. He receives research support from Arthrex, Biomet, Exactech and Flexion Therapeutics.
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Schoch, B.S., King, J.J., Wright, T.W. et al. Patient age at time of reverse shoulder arthroplasty remains stable over time: a 7.5-year trend evaluation. Eur J Orthop Surg Traumatol 33, 993–1001 (2023). https://doi.org/10.1007/s00590-022-03227-w
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DOI: https://doi.org/10.1007/s00590-022-03227-w