The author (JLG) certifies receipt of personal payments or benefits, during the study period, an amount of USD 10,000 to USD 100,000 from Smith & Nephew, USD 10,000 to USD 100,000 from Stryker, and USD 100,001 to USD 1,000,000 from Zimmer Biomet. All ICMJE Conflict of Interest Forms for authors and Clinical Orthopaedics and Related Research ® editors and board members are on file with the publication and can be viewed on request. The opinions expressed are those of the writer, and do not reflect the opinion or policy of CORR ® or The Association of Bone and Joint Surgeons ® .