The Buddy Study: Local reach, adoption and implementation following a randomised controlled trial of conservative management of fifth metacarpal neck fractures.

Objective: To understand the reach, adoption and implementation of the evidence that buddy strapping for uncomplicated fifth metacarpal neck fractures is non-inferior to plaster casting.

Methods: Mixed-method study using clinical audit of the years before and after the original randomised controlled study was published (2019) and staff questionnaires/semi-structured interviews.

Results: Sixty-nine percent of questionnaire respondents were aware of the original study findings (i.e. reach) and 57% had adopted the research findings. The proportion of patients receiving buddy strapping was 6% in 2014-2016 and 28% in 2019-2021 (implementation). Qualitative data provided insight into ongoing barriers to adoption and implementation including fear of reprisal, the need for permission, opinions of senior decision makers, perceptions about patient preferences, and an overall tendency to 'play it safe'.

Conclusions: Even in a department where primary research is conducted, implementation requires ongoing attention to factors impacting reach and adoption.