A review of registry research from 2020

The first Registry Review in 2020 focused on data and results from analysis of arthroplasty registers. In this, the second Registry Review, we have expanded the remit to include the often-newer non-arthroplasty registries. This month, we also feature the recently published protocol of a randomized controlled trial nested within an arthroplasty registry, an important study design that is likely to form an important, efficient study methodology, and not just in registry research. The most notable recent development for academics working with
arthroplasty registry data, however, is a simple change in nomenclature. From August 2020, what was previously known as the National Joint Registry for England, Wales, Northern Ireland, and the Isle of Man has been officially renamed
the “National Joint Registry” (NJR), a change that will lead editors and authors alike to breath a collective sigh of relief over word counts, particularly in titles and abstracts.