Risk factors of loss of reduction after acromioclavicular joint dislocation treated with a hook plate.

"Declarations Ethics approval and consent to participateAll methods used in this longitudinal observational study were carried out in accordance with ‘Declaration of Helsinki’, and we obtained informed consent from the patient. Local institutional review board approval from Hanyang University Hospital was obtained for the study. (HYUH-2020-06-037). Consent for publicationWritten informed consent for publication was obtained from each participant. Competing interestsThe authors declare that they have no competing interests. No benefits in any form have been or will be received from any commercial entity that is related directly or indirectly to this work. Competing interests The authors declare that they have no competing interests. No benefits in any form have been or will be received from any commercial entity that is related directly or indirectly to this work."

"Funding This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Korean government (MSIT) (no. 2020R1A2C2101353)."