Is the definition of frozen shoulder accurate? The pain and dysfunction of the shoulder joint caused by soft tissue lesions around the shoulder is generally referred to as periarthritis, or frozen shoulder. However, because the diagnostic term periarthritis has a vague meaning of the location and nature of the lesion, the diagnostic name is not specific enough, and the treatment methods are many and different, which affects the improvement of the treatment effect and the objective evaluation and comparison of the effect of each treatment method. What diseases are included in the concept of periarthritis? With the accumulation of anatomical, pathological, biochemical, immunological and etiological knowledge, especially the rapid development of recent electronic technology, optics, sports biomechanics, diagnostic imaging technology and sports traumatology and the accumulation of clinical experience of medical experts, conditions have been created for a more accurate and scientific diagnosis of shoulder injuries and diseases. At present, the term frozen shoulder has been gradually replaced by specific diagnostic terms such as long head biceps tenosynovitis, rostral synovitis, supraspinatus tendonitis, subacromial bursitis, frozen shoulder, shoulder impingement syndrome, rotator cuff injury, etc. The term frozen shoulder exists in name only. What are the causes of frozen shoulder? (1) The disease mostly occurs in middle-aged and elderly people over 40 years of age, with degenerative soft tissue disease and reduced ability to withstand various external forces being the basic factors; (2) Chronic injury-causing forces from long-term overactivity and poor posture are the main triggering factors; (3) The shoulder is fixed for too long after upper limb trauma, with secondary atrophy and adhesion of the periapical tissue. (4) Acute contusions and strains of the shoulder due to improper treatment, etc. 2.Extra-shoulder factors Cervical spondylosis, heart, lung and biliary tract diseases occur in the shoulder involvement pain, because the original disease does not heal for a long time so that the shoulder muscle persistent spasm, ischemia and the formation of inflammatory lesions, transformed into the real frozen shoulder. What are the conservative treatments? Most patients with different diagnoses of frozen shoulder can be treated with pain relievers, non-steroidal anti-inflammatory drugs, Chinese herbal medicine to dispel the wind and cold, relieve spasm and activate blood circulation, local closed injections, and physical therapy to reduce inflammation, relieve pain, relieve spasm, improve blood circulation, and relax muscles. Exercise rehabilitation training is “three parts of medicine and seven parts of practice”. Patients should be encouraged to do more exercises for the shoulder joint, especially large exercises, which are beneficial to prevent adhesions of the shoulder joint and constriction and contracture of the shoulder soft tissues. Cure or relief is obtained after treatment with these measures. Closed treatment of rostral synostosis is the most effective; coagulation shoulder is a self-limiting disease, which usually heals itself in about one year. What is minimally invasive shoulder arthroscopy? Shoulder arthroscopic surgery is one of the fastest growing disciplines in the field of surgery and sports medicine in the last twenty-five years. Shoulder arthroscopy, like other arthroscopic surgeries, requires specialized shoulder arthroscopic instruments and equipment. It requires a shoulder arthroscopist to select two to three 5 mm long surgical entrances in the shoulder joint, implant the shoulder arthroscope and surgical instruments, use sutures and suture rivets for suture fixation of the ruptured muscle and tendon tissue, power grinding system instruments for bone tissue and related soft tissue removal, and combine with advanced postoperative The postoperative period is combined with advanced sports rehabilitation training to achieve a good therapeutic effect of minimally invasive surgery. Because of the advantages of accurate diagnosis, small surgical trauma, precise surgery, no need for secondary surgery to remove the fixed consumables, and remarkable effect, shoulder arthroscopy is popular among patients with shoulder arthrosis. Minimally invasive shoulder arthroscopy will become the main surgical tool for the treatment of frozen shoulder now and in the future. Which patients need to be suitable for minimally invasive shoulder arthroscopy? Patients with persistent frozen shoulder are those who have been ineffective after more than 3 months of conservative treatment, with prolonged persistent pain, skeletal deformities, severe lesions or ruptures of rotator cuff tendons, intra-articular adhesions and joint capsule contracture resulting in severe shoulder joint dysfunction, or those with significant impingement caused by subacromial bones, and these patients should be actively treated surgically. What is the efficacy of minimally invasive shoulder arthroscopy? Take rotator cuff injury as an example to illustrate the therapeutic 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 rotator cuff repair surgery under shoulder arthroscopy reached 92%, which is better than the treatment effect of traditional surgery. What are the points to note in preventing frozen shoulder 1. Avoid stimulation of muscle tissue and spasm, which for a long time causes fibrous-like degeneration of muscle cells and muscle contraction dysfunction and causes 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 poor 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.