Classification and measurement of displacement of isolated greater tuberosity fractures: Intra and interobserver reliability.

Background: Literature demonstrates variability in the amount of displacement of isolated greater tuberosity (GT) fractures and measurement techniques that orthopaedic surgeons deem warrant surgical intervention. This study aims to assess the intra and interobserver reliability for classifying and measuring the displacement amount for isolated GT fractures.

Methods: Eight surgeons, consisting of four shoulder specialists and four trainee surgeons, reviewed 25 plain radiographs on two separate occasions, 3 months apart.