AC joint dislocation

Luxation or dislocation can occur after a person falls on their shoulder or extended arm (often in sports accidents, for example, with cycling, football and skiing). The ligaments stabilising the clavicle tear off and pull up the attached muscles. A ‘stair position forms and the tip of the clavicle ends up just beneath the skin.

Downward pressure on the tip of the clavicle creates a piano-key phenomenon, where the tip of the clavicle moves up and down.

We check the extent of the dislocation through clinical examination and additional ultrasound and radiographic examination, sometimes with stress tests. This involves hanging a weight on the end of the arm so that, on the radiography, a shift can be observed between the clavicle and the (acromion).

Depending on the severity of the injury, surgery may be required.

• Non-surgical intervention

We can treat a number of cases non-surgically with lasting success. The arm is stabilised in a sling for a few weeks until the pain is under control. Avoid lifting and high-risk sports for about six weeks. Anti-inflammatories and physiotherapy can help promote healing.

• Surgical intervention

In case of very severe displacement of the clavicle end or in people who perform physically demanding work, surgery is recommended. Indeed, due to the high risk of permanent discomfort here, such as neck pain due to irritation of the trapezius muscle (muscle on top of the back). Operations are also carried out on recreational and elite athletes (e.g. cyclists and moto-crossers) to ensure rapid sports recovery.

Latest publication date: 02/08/2024