Documented Cannabis Use Is a Risk Factor for Nonunion After Nonoperative Management of Scaphoid Fractures: A Retrospective Review of 159 998 Patients.

Background: The purpose of the present study was to assess whether an association exists between cannabis use and nonunion among patients with acute scaphoid fractures initially treated nonoperatively.

Methods: Using the PearlDiver national data set (2010-2020), adult patients with a scaphoid fracture were identified. Patients initially treated with nonoperative management were selected, and 3 subgroups were defined: non-cannabis/non-tobacco (non-users), tobacco-only, cannabis-only.