2025年1月28日 · An acromioclavicular joint injury, otherwise known as a shoulder separation, is a traumatic injury to the acromioclavicular (AC) joint with disruption of the acromioclavicular ligaments and/or coracoclavicular (CC) ligaments. Diagnosis is made with bilateral focused shoulder radiographs to assess for AC and CC interval widening.

2024年6月20日 · A joint subluxation is a partial dislocation of a joint. It is often the result of acute injury or repetitive motion injury but can also be caused by medical conditions that undermine the integrity of ligaments. The treatment for subluxations may include resetting the joint, pain relief, rehabilitation therapy, and, in severe cases, surgery.

An AC Joint Subluxation is a partial dislocation, meaning that the clavicle goes partially out of joint, with part of the clavicle still touching the acromion. An AC Joint Subluxation looks like a small bump on top of the shoulder. Shoulder X-rays are necessary to confirm the diagnosis and make sure that a clavicle fracture isn’t present.

2024年11月5日 · Acromioclavicular joint injuries, commonly shortened to ACJ injuries, are characterized by damage to the acromioclavicular joint and surrounding structures. Almost invariably traumatic in etiology, they range in severity from a mild sprain to complete disruption.

Subluxations and dislocations of this joint are colloquially called “shoulder separations” (perhaps to preserve the terms shoulder subluxation and shoulder dislocation for the glenohumeral joint). Patients with AC joint separations commonly present …

2022年9月24日 · Acromioclavicular (AC) joint injuries are common shoulder injuries, comprising over 40% of all shoulder injuries and frequently occurring during sports, falls, or car accidents. These injuries range in severity from mild sprains to severe disruptions that can result in significant loss of shoulder strength and function.

It can be due to trauma, such as joint dislocation of the acromioclavicular joint or degenerative conditions, such as osteoarthritis. [1] . An acromioclavicular dislocation is a traumatic dislocation of the joint in which a displacement of the clavicle occurs relative to the shoulder. [2]

Shoulder subluxation, a subset of shoulder instability, occurs when the shoulder joint partially dislocates. In this condition the humeral head slips out of the glenoid cavity as a result of weakness of rotator cuff or looseness of the glenohumeral ligaments.

The deformity that occurs because of AC joint subluxation or dislocation results from the dissociation of the scapula from the supporting strut of the clavicle. 46,49,60 Gravity displaces the scapula downward and there is a concomitant scapular protraction and internal rotation such that the scapula is displaced medial to the AC joint. 60 With ...

Persistent AC joint instabilities can result in persistent pain and functional impairment of the shoulder girdle. Accurate classification and correct choice of treatment requires radiographic assessment with vertical and horizontal weight-bearing radiographs. Rockwood type I to type II injuries can be treated conservatively.