The following are the most important diseases or complications that can be caused by osteoarthritis of the acromioclavicular joint (arthritis of the acromioclavicular joint):
Musculoskeletal system and connective tissue (M00-M99).
- Impingement syndrome (English “collision”) – the symptomatology of this syndrome is based on the presence of a constriction of the tendon structure in the shoulder joint, resulting in functional impairment of joint mobility. It is mostly caused by degeneration or entrapment of capsular or tendon material. Degeneration or injury of the rotator cuff is the most common cause here. Symptom: Affected patients can hardly lift their arm above shoulder height due to the increasing impingement of the supraspinatus tendon. The actual impingement occurs subacromially, which is why this is called subacromial syndrome (short: SAS).
- Cervicobrachial syndrome (synonym: shoulder-arm syndrome) – pain in the neck, shoulder girdle and upper extremities. The cause is often the compression or irritation of spinal nerves (spinal cord nerves) of the cervical spine; most common causes are myofascial complaints (pain in the musculoskeletal system, which do not originate from joints, periosteum, muscle diseases or other neurological diseases), for example, due to myogelosis (muscle hardening) or muscle imbalance of the cervical spine.
