Case Control Study
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World J Clin Cases. Mar 6, 2022; 10(7): 2087-2094
Published online Mar 6, 2022. doi: 10.12998/wjcc.v10.i7.2087
Usefulness of the acromioclavicular joint cross-sectional area as a diagnostic image parameter of acromioclavicular osteoarthritis
Young Joo, Jee Youn Moon, Jung Youn Han, Yun-Sic Bang, Keum Nae Kang, Young Su Lim, Young-Soon Choi, Young-Uk Kim
Young Joo, Department of Anesthesiology and Pain Medicine, CHA Ilsan Medical Center, School of Medicine, CHA University, Ilsan, Gyeonggi-do 10414, South Korea
Jee Youn Moon, Department of Anesthesiology and Pain Medicine, Seoul National University Hospital College of Medicine, Seoul 03080, South Korea
Jung Youn Han, Yun-Sic Bang, Department of Anesthesiology and Pain Medicine, CHA Bundang Medical Center, School of Medicine, Seongnam, Gyeonggi-do 13496, South Korea
Keum Nae Kang, Department of Anesthesiology and Pain Medicine, National Police Hospital, Seoul 05715, South Korea
Young Su Lim, Young-Soon Choi, Young-Uk Kim, Department of Anesthesiology and Pain Medicine, Catholic Kwandong University, College of Medicine, International St. Mary’s Hospital, Incheon 22711, South Korea
Author contributions: Kim Y and Joo Y designed the experiment; Moon JY, Han JY, Bang Y, Choi Y, and Lim YS collected the data; Kim Y, Joo Y, and Kang KN analyzed and interpreted data; Kim Y and Joo Y wrote the article.
Institutional review board statement: This retrospective study was approved by the Ethics Committee of The Catholic Kwandong Medical School, No. IS21RISI0048.
Informed consent statement: Patients were not required to give informed consent to this study because the retrospective analysis used anonymous data that were obtained after each patient agreed to treatment by written consent.
Conflict-of-interest statement: The authors declare no conflicts of interest.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Young-Uk Kim, MD, PhD, Research Fellow, Department of Anesthesiology and Pain Medicine, Catholic Kwandong University of Korea College of Medicine, International St. Mary’s Hospital, Simgokro 100Gil, Incheon 22711, South Korea. uk201@hanmail.net
Received: June 25, 2021
Peer-review started: June 25, 2021
First decision: July 26, 2021
Revised: August 6, 2021
Accepted: January 20, 2022
Article in press: January 20, 2022
Published online: March 6, 2022
Processing time: 250 Days and 1.4 Hours
Core Tip

Core Tip: An acromioclavicular joint (ACJ) space narrowing has been considered to be an important diagnostic image parameter of ACJ osteoarthritis. However, the morphology of ACJ space is irregular, because of osteophyte formation, subchondral irregularity, capsular distention, sclerosis, and erosions. Therefore, we created the ACJ cross-sectional area as a new diagnostic image parameter to assess the irregular morphologic change of ACJ.