Proximal Humerus Fracture Dislocation Direction and Avascular Necrosis

The purpose of the study is to see if there is a connection between a proximal humerus fracture dislocation direction and the likelihood of developing avascular necrosis. Utilizing a retrospective cohort from the last ten years we hope to bring consenting patients back for a single visit to have x-rays and complete patient reported outcome measures to assess for evidence of avascular necrosis.

Inclusion Criteria:Patients 18 years of age or olderPatients who underwent operative fixation of proximal humerus fracture dislocation at Royal Columbian Hospital between January 2011 and July 2021Willing and able to consent and complete patient reported outcome measuresWilling and able to follow the protocol and attend a follow-up visitAble to read and understand English or have an interpreter availableExclusion Criteria:Skeletally immature patientsPatient with pathological fracturesPatients who have had previous operative fixation of proximal humerusPatients treated non-operativelypatients presenting outside of the study duration windowPatients treated by a non-participating surgeonDeceased patientsPatients unable to complete patient reported outcome measuresPatients declining to come back to the clinic for updated x-raysDementiaIncarceration