Case Report
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Feb 16, 2022; 10(5): 1645-1653
Published online Feb 16, 2022. doi: 10.12998/wjcc.v10.i5.1645
Arthroscopic surgery for synovial chondroma of the subacromial bursa with non-traumatic shoulder subluxation complications: Two case reports
Xiong-Feng Tang, Yan-Guo Qin, Xian-Yue Shen, Bo Chen, Ying-Zhi Li
Xiong-Feng Tang, Yan-Guo Qin, Xian-Yue Shen, Bo Chen, Ying-Zhi Li, Orthpoeadic Medical Center, Jilin University Second Hospital, Changchun 130041, Jilin Province, China
Author contributions: Tang XF, Shen XY, Chen B, and Li YZ were the clinicians involved in the diagnosis, management, therapy, and follow-up of the patients; Tang XF reviewed the literature and wrote the draft; Qin YG and Li YZ were responsible for the critical revision of the manuscript for relevant intellectual content. All of the authors approved the final version of the paper prior to submissions.
Supported by the Natural Science Foundation of Jilin Province, No. 20200201536JC.
Informed consent statement: The patients were informed and agreed to participate in this study.
Conflict-of-interest statement: All the authors declare no conflicts of interest for this article.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared revised according to the CARE Checklist.
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: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Ying-Zhi Li, MD, Associate Professor, Surgeon, Orthpoeadic Medical Center, Jilin University Second Hospital, Nanguan Road, No. 218 Ziqiang Street, Changchun 130041, Jilin Province, China. dlyz2005@jlu.edu.cn
Received: August 23, 2021
Peer-review started: August 23, 2021
First decision: October 22, 2021
Revised: November 4, 2021
Accepted: January 11, 2022
Article in press: January 11, 2022
Published online: February 16, 2022
Processing time: 172 Days and 4.5 Hours
Abstract
BACKGROUND

Synovial chondromatosis is a disease originating from the synovium and characterized by the presence of metaplastic cartilaginous nodules in synovial cavities. The exact prevalence of synovial chondromatosis remains unknown, and the involvement of the shoulder joint is very rare. Synovial chondromatosis accompanied by subluxation of the humeral head without a history of trauma is rarely encountered, and to our knowledge, no published reports describe this condition.

CASE SUMMARY

We present two cases of synovial chondromatosis in the shoulder joint, accompanied by subluxation of the humeral head, in two arthroscopically managed adult patients. We performed arthroscopic labrum fixation and removal of the loose body from the shoulder joint. To identify primary and secondary categories, pathological analysis was arranged. Clinical and radiographic evaluations at the 1-mo follow-up were satisfactory.

CONCLUSION

The biomechanical function of the shoulder joint requires attention, especially following the detection of loose bodies, as observed with synovial chondroma occurring in rare sites. Arthroscopic management is successful in patients with synovial chondromatosis combined with shoulder subluxation.

Keywords: Synovial chondromatosis; Shoulder; Subluxation; Arthroscopic surgery; Case report

Core Tip: Synovial chondromatosis accompanied with subluxation of the humeral head without a history of trauma is rarely encountered and, to our knowledge, there are no reports yet of this condition. We report two cases that had synovial chondromatosis accompanied with subluxation of the humeral head and it is the first to describe. Arthroscopic management was successful in patients with synovial chondromatosis combined with subluxation of the shoulder. Biomechanical working of the shoulder joint should not be ignored in synovial chondromatosis diagnosis, especially with the emergence of loose bodies such as in synovial chondroma occurring in rare sites.