Tang Xiong-Feng, Qin Yan-Guo, Shen Xian-Yue, Chen Bo, Li Ying-Zhi
Orthpoeadic Medical Center, Jilin University Second Hospital, Changchun 130041, Jilin Province, China.
World J Clin Cases. 2022 Feb 16;10(5):1645-1653. doi: 10.12998/wjcc.v10.i5.1645.
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.
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.
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.
滑膜软骨瘤病是一种起源于滑膜的疾病，其特征是滑膜腔内存在化生的软骨结节。滑膜软骨瘤病的确切患病率尚不清楚，肩关节受累非常罕见。伴有肱骨头半脱位且无创伤史的滑膜软骨瘤病很少见，据我们所知，尚无已发表的报告描述这种情况。
我们报告两例成年患者肩关节滑膜软骨瘤病伴肱骨头半脱位，均接受关节镜治疗。我们进行了关节镜下盂唇固定并从肩关节取出游离体。为确定原发性和继发性类别，安排了病理分析。1个月随访时的临床和影像学评估结果令人满意。
肩关节的生物力学功能需要关注，尤其是在发现游离体时，如罕见部位发生的滑膜软骨瘤所见。关节镜治疗对合并肩关节半脱位的滑膜软骨瘤病患者是成功的。
