Related Experiment Video
Updated: Apr 12, 2026
The Modified Single-working Portal Technique Using Lasso-loop Stitch with Needle for Arthroscopic Subscapularis Repair
Published on: August 8, 2025
Arthroscopic treatment of bony loose bodies in the subacromial space
Wei Li1, De-Ming Xiao1, Chang-Qing Jiang1
1The Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Lianhua Road 1120, FuTian District, Shen Zhen 518036, Guang Dong, PR China.
Introduction:
Multiple bony loose bodies in the subacromial space caused form cartilage or bone cells and continue to grow.
Presentation Of Case:
A 58-year-old man with two-year history of swelling and pain of the right shoulder. He had no history of tuberculosis and rheumatoid arthritis. Magnetic resonance (MR) images showed some bony loose bodies in the subacromial space. The removal of loose bodies and bursa debridement were performed arthroscopically. Histological diagnosis of them was synovitis with fibrous bodies.
Discussion:
Extra-articular loose bodies is extremely rare, especially in the subacromial space, which maybe originated in the proliferative synovial bursa. Most authors recommend open removal to relive the pain, but there were choice to apply arthroscopy to remove them.
Conclusion:
The mechanism of formation of bony loose bodies is not clear, may be associated with synovial cartilage metaplasia. Arthroscopic removal of loose bodies and bursa debridement is a good option for treatment of the loose body in the subacromial space, which can receive good function.
