The difference between acromioclavicular impingement syndrome and frozen shoulder lies in the etiology, clinical features, X-ray and magnetic resonance performance.
1. Etiology: acromioclavicular impingement syndrome is mostly due to congenital developmental abnormality or lesion of the shoulder joint; frozen shoulder is mostly due to degenerative changes of the joint, long-term over-activity, poor posture and so on.
2. Clinical manifestations: acromioclavicular impingement syndrome is characterized by lateral shoulder pain, mainly at night, limited abduction and lifting, and obvious pain when abduction reaches 60-80 degrees; frozen shoulder is characterized by limited active and passive activities in all directions of the shoulder, limited pain in a certain place of the shoulder, and the range of the pain is gradually enlarged, and in serious cases, the affected limb can not comb the hair and touch the back with the opposite hand.
3. X-ray film: acromion impingement syndrome can be seen as sclerosis of acromion and humeral tuberosity, and formation of bone cumbersome; frozen shoulder can be seen as normal structure of shoulder joint, with different degrees of osteoporosis.
4. Magnetic resonance imaging: rotator cuff injury of supraspinatus tendon can be seen in acromioclavicular impingement syndrome; thickening of joint capsule and exudation from shoulder bursa can be seen in frozen shoulder.
If the patient has the above symptoms, please consult a doctor for a clear diagnosis and targeted treatment or therapy with the help of a doctor.