Rotator cuff injury is a common shoulder joint disease in clinic. If conservative treatment fails to improve pain symptoms and range of motion, the surgical indications are. Numerous studies have shown that the pain of rotator cuff injury usually comes not from the broken tendon, but from periarthritis tendonitis, bursitis or adhesive shoulder capsule, etc. Ultrasound-guided drug injection combined with conventional rehabilitation treatment can significantly improve the pain symptoms and increase joint mobility. This study intends to use prospective cohort study methods, exposed factors for ultrasound-guided injection drug treatment, establish a rotator cuff injury exposure group and the control group of shoulder joint dysfunction queue, whether of ultrasound guided drug injection therapy can increase the shoulder joint function analysis, and explore for the rotator cuff injury method provides the basis of the evidence-based conservative treatment. The establishment of a conservative treatment cohort for rotator cuff injury will also lay the foundation for the accurate rehabilitation treatment of rotator cuff injury.

Inclusion Criteria:

• Chief complaint around shoulder joint discomfort or restricted movement
• Nuclear magnetic or ultrasound in the diagnosis of rotator cuff injury and not to consider surgery patients
• Assessed by the musculoskeletal ultrasound images, diagnosed with tendonitis around shoulder joint, slippery bursa phlogistic or adhesive shoulder level
• Section capsule, such as indications of patients treated with ultrasound guided by injection.

Exclusion Criteria:

• History of shoulder fractures, open trauma, or surgery combined with shoulder and hand syndrome, gout, autoimmune arthritis, infectious arthritis, and other factors resulting in shoulder pain or limited mobility

He was admitted to the third hospital of Peking University due to the dysfunction of shoulder joint caused by rotator cuff injury