The Registry's 2021 annual report, with a plain-language lay summary and 4 errata.Hip, Knee and Shoulder ArthroplastyPDF · 43.8 MBLay SummaryPDF · 2.6 MB2021 Annual Report Printed Version ERRATUM 1PDF · 71 KB2021 Annual Report Printed Version ERRATUM#2PDF · 655 KB2021 Annual Report Printed Version ERRATUM#3PDF · 398 KB2021 Annual Report Printed Version ERRATUM#4PDF · 86 KB