Media type: E-Article Title: Postoperative cognitive dysfunction after beach chair positioning compared to supine position in orthopaedic surgery in the elderly Contributor: Groene, Philipp; Schaller, Tanja; Zeuzem-Lampert, Catharina; Rudy, Margret; Ockert, Ben; Siebenbürger, Georg; Saller, Thomas; Conzen, Peter; Hofmann-Kiefer, Klaus imprint: Springer Science and Business Media LLC, 2023 Published in: Archives of Orthopaedic and Trauma Surgery Language: English DOI: 10.1007/s00402-023-05109-0 ISSN: 1434-3916 Keywords: Orthopedics and Sports Medicine ; General Medicine ; Surgery ; Surgery Origination: Footnote: