What is ACJ subluxation?

What is ACJ subluxation?

You have sustained a dislocation of your Acromioclavicular joint (ACJ). This is the joint between the top of the shoulder blade (acromion) and the far end of the collar bone (clavicle). This normally takes between 6-12 weeks to heal.

What is a type 5 acromioclavicular separation?

Grade 5—Involves tearing of the joint covering (capsule) and ligaments connecting the shoulder blade (scapula) and collar bone (clavicle), and the end of the collar bone (clavicle) tears through the muscle covering (fascia) above it. Results in a large, permanent bump over the top of the shoulder at the AC joint.

What is a shoulder blade squeeze?

Shoulder blade squeeze Sit or stand up tall with your arms at your sides. Keep your shoulders relaxed and down, not shrugged. Squeeze your shoulder blades together. Hold for 6 seconds, then relax. Repeat 8 to 12 times.

What is a Grade 2 acromioclavicular joint separation?

Grade 2—Involves tearing of the joint covering (capsule) and stretching (but not tearing) of ligaments connecting the shoulder blade (scapula) and collar bone (clavicle). Frequently results in a small, permanent bump over the top of the shoulder at the AC joint.

How are low grade ACJ dislocations usually treated?

The treatment of ACJ dislocations must consider two aspects. In addition to the correct type of injury therapy strategies should be adapted to patient’s demands and compliance. Low grade AC injuries types I and II are treated non-operatively in terms of “skilful-neglect”.

When to stop immobilizing acromioclavicular joint separations?

Acromioclavicular Joint Separations 215 and self-care activities may be accompanied by pain, indicating the need for further protection with continued use of a sling. Following the cessation of pain at rest with the arm at the side and with self-care activities, immobilization is discontinued.

Which is muscle provides Dynamic stabilisation of the AC joint?

The trapezius and deltoid muscles also provide dynamic stabilisation of the AC joint. Injuries to the AC Joint account for approximately 10% of acute injuries to the shoulder girdle, with separations of the AC Joint accounting for 40% of shoulder girdle injuries in athletes.

When does the closed packed position of the AC joint occur?

The closed packed position of the AC Joint occurs when the Glenohumeral Joint is abducted to 90 degrees. The open packed position of the AC Joint is undetermined. The AC Joint is extremely susceptible to both trauma and degenerative change. This is due to its small and incongruent surfaces that result in large forces per unit area.