Take rotator cuff injury as an example to illustrate the treatment effect of minimally invasive shoulder arthroscopy: open rotator cuff repair used to be the gold standard for surgical treatment of rotator cuff tears, and the pain relief rate of this procedure averaged 87%, while the pain relief rate of modern shoulder arthroscopic rotator cuff repair surgery reached 92%, which is better than the treatment effect of traditional surgery. What are the points to note in preventing frozen shoulder? 1. Pay attention to cold and warmth to avoid muscle spasm due to stimulation, which may cause fibrous degeneration of muscle cells and muscle contraction dysfunction and cause various symptoms. 2, strengthen the functional exercise of the shoulder joint, the elderly can often play taijiquan, taiji sword, gateball, etc.. 3.Correct bad posture. For people who often work with their shoulders in abduction, they should pay attention to adjusting their posture to avoid chronic strain and accumulative injury caused by long-term bad posture. 4. Pay attention to related diseases that can easily cause secondary frozen shoulder, such as diabetes, cervical spondylosis, shoulder and upper limb injuries, thoracic surgery and neurological diseases, and keep the mobility of the shoulder joint. 5. For patients who have developed frozen shoulder, in addition to actively treating the affected side, prevention should also be carried out on the healthy side. Some studies have shown that in 40% of patients with frozen shoulder 5-7 years after the disease, frozen shoulder will occur on the opposite side; in about 12% of patients, frozen shoulder will occur on both sides. Therefore, targeted preventive measures should also be taken for the healthy side.