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Introduction Stemless reverse total shoulder arthroplasty is used to treat rotator cuff deficient arthropathies, rheumatoid arthritis, and osteoarthritis. It has several advantages over the stemmed implant including preservation of bone stock, reduced surgical time, and easier revision. Methods A systematic search was conducted in MEDLINE, EMBASE, PubMed, and CENTRAL to retrieve all relevant studies evaluating stemless reverse total shoulder arthroplasty. Results The literature search identified 1993 studies out of which 7 studies were included in this review; 324 patients underwent stemless reverse total shoulder arthroplasty with a weighted mean age of 74.1 (SD = 8.6, range = 38 to 93) years and a weighted mean follow-up time of 44 (SD = 6.6, range = 3 to 95) months. The included studies reported significant improvements in range of motion and functional scores comparable to stemmed reverse total shoulder arthroplasty. The weight mean flexion and abduction was (135 ± 12)° and (131 ± 12)° post-operatively, respectively. The weighted mean constant score increased from (26.7 ± 5.2) Patients (pts) to (63.0 ± 8.0) pts post-operatively. Overall complication and revision rate were 12.3% and 5.2%. Conclusion Early and mid-term results indicate stemless reverse total shoulder arthroplasty has similar clinical outcomes to stemmed reverse total shoulder arthroplasty. There was no radiological evidence of humeral loosening at the latest follow-up.

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Culture fundamentally shapes how people interact with others. During these interactions, people often desire to change others’ emotions, and take various actions to do so, but limited research has examined the role culture plays in shaping these actions to influence others’ emotions. Here, building on the literature examining cultural influences on intrapersonal emotion regulation, we theorize that cultural values should affect the strategies people use to regulate others’ emotions through an influence on self- vs. other-serving motives, and present new data in support of this theory. In a 7-day daily diary study (N = 211, 1557 daily reports) examining real episodes of interpersonal emotion regulation, collectivism predicted increased extrinsic reappraisal use, and other-serving motives mediated this relationship. Individualism, contrary to our prediction, did not predict increased extrinsic suppression use. The study, conducted in a natural setting, provides the first evidence linking culture and extrinsic interpersonal emotion regulation, advancing the understanding of how culture shapes motives and actions taken to change others’ emotions.