Frozen shoulder, commonly known as frozen shoulder. It is a chronic injury inflammation of the periacetabular muscles, tendons, bursa and joint capsule. It is characterized by pain and functional limitation during activities due to internal and external joint adhesions. Clinical features 1. The disease is more common in women than in men, more on the left side than on the other side, or both sides may develop successively. The disease is more common in middle-aged and elderly people. 2. The pain gradually appears in one part of the shoulder, which is obviously related to the movement and posture. With the prolongation of the disease, the pain expands and involves the middle part of the upper arm, and is accompanied by limited movement of the shoulder joint. If you want to increase the range of motion, severe sharp pain will occur. In severe cases, the affected limb cannot comb the hair, wash the face or buckle the belt. The patient may wake up at night with pain due to turning and moving the shoulder. The patient can still point out the painful point at the beginning, but later the range expands and the pain is felt to come from the humerus physical examination: there is mild atrophy of the deltoid muscle and spasm of the trapezius muscle. The supraspinatus tendon, long and short biceps tendon and the anterior and posterior edges of the deltoid muscle can have significant pressure pain. The shoulder joint is most obviously limited in abduction, external rotation and posterior extension, and in a few cases, it is also limited in adduction and internal rotation, but less in forward flexion. Radiographic findings In older patients or those with a longer course of disease, radiographs may show osteoporosis of the shoulder, or calcification of the supraspinatus tendon or subacromial bursa. Frozen shoulder should be differentiated from the following diseases 1. Cervical spondylosis Neurogenic cervical spondylosis can cause shoulder pain due to irritation of the cervical 5 nerve roots, while prolonged pain and muscle spasm can lead to chronic inflammatory injury. Therefore, cervical spondylosis can have shoulder symptoms and can also be secondary to frozen shoulder. The main differentiation between the two is that in cervical spondylosis, there is little damage to the single nerve, often there is radicular pain in the forearm and hand, and there are signs of nerve localization. In addition, there are more signs in the head and neck than in frozen shoulder. 2. Shoulder tumor Although shoulder tumor is less common than other diseases, it has serious consequences. In clinical practice, sometimes the shoulder pain of middle-aged and elderly people is treated as frozen shoulder or cervical spondylosis for a long time, thus delaying the diagnosis. Therefore, any person whose pain is progressively aggravated, cannot be relieved by fixing the affected limb, and has axial percussion pain, should be examined by radiography to exclude bone disease. Treatment 1. Frozen shoulder has its own natural course and usually heals itself in about 1 year. However, if you do not cooperate with the treatment and functional exercise, even if you heal yourself, you will still have different degrees of dysfunction. 2. Early physical therapy, acupuncture, and moderate massage can improve the symptoms. 3.When the pain is limited, local injection of prednisolone acetate can significantly relieve the pain. 4.When the pain persists and it is difficult to sleep at night, you can take Fenbid 0,3g twice a day for a short period of time, or add Clozoxazone 0,2g three times a day to relax the spastic muscles. 5.Regardless of the duration of the disease, and whether the symptoms are mild or severe, active activities of the shoulder joint should be performed daily, and the activities should not cause severe pain. 6. In addition to local treatment, treatment of the original disease is also required for frozen shoulder due to extra-shoulder factors.