Shoulder pain is a common complaint and can originate from various structures. Among them, the acromioclavicular joint is one of the most frequently involved in this type of discomfort.
What is the acromioclavicular joint and why can it hurt?
The acromioclavicular joint is the junction between the clavicle and the acromion, The shoulder blade is a part of the scapula that forms the highest point of the shoulder. It is a small but key structure for stability and force transmission during arm movements.
Pain in this area appears when The joint is subjected to overload, wear and tear, or alterations in its function.. This can cause inflammation or irritation of the tissues, affecting mobility and causing discomfort during specific movements.
Where is acromioclavicular pain located in the shoulder?
Acromioclavicular pain is located in the upper part of the shoulder, right at the point where the clavicle joins the scapula. It is usually a well-defined pain that can increase when pressure is applied to the area or when certain arm movements are performed.
What causes pain in the acromioclavicular joint?
Pain in the acromioclavicular joint is often related to degenerative processes, repeated overloads, or direct injuries to the shoulder. These situations can alter the mechanics of the joint and favor the appearance of discomfort in daily life or during physical activity.
How do osteoarthritis, overuse, or trauma affect the shoulder?
Between the most common causes they find each other:
- Acromioclavicular osteoarthritis: The progressive wear and tear of cartilage causes friction between the bones, generating pain and stiffness.
- Shoulder overuse: Repetitive movements, especially overhead, can irritate the joint and its surrounding structures.
- Direct trauma: Blows or falls on the shoulder can damage the joint or its ligaments, causing immediate or persistent pain.
What are the symptoms of an acromioclavicular injury or inflammation?
Acromioclavicular joint disorders typically manifest with localized symptoms that can interfere with shoulder movements. Their intensity varies depending on the degree of involvement and the type of injury.
- Pain in the upper shoulder
- Discomfort when moving the arm, especially in certain gestures
- Sensitivity when pressing the area
- Limitation in mobility
- Feeling of weakness when exerting oneself
When the pain worsens when crossing your arm or lifting weight
Acromioclavicular pain often intensifies when crossing the arm in front of the body or lifting heavy objects, because These movements increase pressure on the joint. It can also appear or worsen during everyday activities that involve carrying objects or performing repetitive shoulder movements.
This type of pain is distinctive because it is reproduced quite precisely with certain movements. In some cases, even Simple actions like getting dressed, reaching for an object, or sleeping on that side They can be annoying.
How is acromioclavicular joint pain diagnosed?
The diagnosis of acromioclavicular pain is based on clinical assessment and examination of the shoulder. The goal is Identify the source of the discomfort and differentiate it from other possible causes pain in the area.
What scans and imaging tests help confirm the problem?
To confirm the diagnosis, Physical examination is combined with imaging tests which allow for a more detailed analysis of the joint:
- Clinical examination: It includes palpation of the area and specific maneuvers that reproduce the pain, such as crossing the arm over the chest.
- Radiography: It allows observation of signs of wear, alterations in the joint space, or possible bone injuries.
- Magnetic resonance imaging: Useful for evaluating soft tissues and ruling out other associated pathologies in the shoulder.
- Ultrasound: It can help assess inflammation and the condition of nearby structures in real time.
How to treat acromioclavicular pain without surgery
He initial treatment of acromioclavicular pain Treatment is usually conservative and tailored to the origin and intensity of the symptoms. The goal is to relieve pain, reduce stress on the joint, and restore shoulder function.
When can rest, physiotherapy, or injections help?
In many cases, The discomfort can be controlled without surgery through measures aimed at reducing joint irritation:
- Relative rest: Temporarily avoid movements that cause pain, especially repetitive gestures or overhead loads.
- Physiotherapy: It helps improve mobility, strengthen muscles, and correct shoulder mechanics.
- Infiltrations: In selected cases, they can reduce inflammation and pain when the above measures are not sufficient.
When to operate on an acromioclavicular joint injury
Surgery is considered when Conservative treatment fails to relieve symptoms or there is a structural abnormality that compromises shoulder function. The indication depends on the evolution of the pain, the degree of impairment, and the impact on daily activity.
Which cases require surgery for osteoarthritis, instability, or persistent pain?
The intervention can be considered in situations in which the joint presents sustained damage or an alteration that does not respond to other measures:
- Advanced osteoarthritis: when wear and tear causes continuous pain and limits mobility despite conservative treatment.
- Joint instability: especially after injuries or sprains that affect the ligaments.
- Persistent pain: when the discomfort persists over time and clearly interferes with normal activities.
How to differentiate acromioclavicular pain from other shoulder pains
Acromioclavicular pain presents a specific pattern that allows distinguish it from other shoulder problems, Although it can be confused with related conditions, the key is to analyze how it appears, what movements trigger it, and what areas are involved.
A proper assessment allows to accurately identify the origin of the problem and avoid unnecessary treatments. At Elgeadi Traumatology, we approach shoulder diagnosis individually to define the best option in each case.
If you have symptoms or any questions, you can ask for a date with our experienced traumatologists.
