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Luxation – Causes, Symptoms & Treatment

A luxation is a complete dislocation of a joint, meaning the joint surfaces are no longer in contact. It requires prompt medical attention.

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Things worth knowing about "Luxation"

A luxation is a complete dislocation of a joint, meaning the joint surfaces are no longer in contact. It requires prompt medical attention.

What Is a Luxation?

A luxation (commonly referred to as a joint dislocation) occurs when the bones forming a joint are completely displaced from their normal position, so that the joint surfaces no longer make contact. This distinguishes it from a subluxation, in which partial contact between the joint surfaces is still maintained. Dislocations can occur in almost any joint of the body, but are most frequently seen in the shoulder, finger joints, elbow, hip, and knee.

Causes

Luxations are most commonly caused by external forces, but can also occur spontaneously under certain conditions:

Trauma: Falls, sports injuries, and road traffic accidents are the most frequent causes.
Direct impact: A blow or forceful push to a joint can displace the joint surfaces.
Ligament weakness or muscle atrophy: Pre-existing ligament damage or weak muscles may allow dislocation with minimal force.
Congenital joint hypermobility: Some individuals are born with naturally loose joints, increasing their risk of dislocation.
Pathological dislocation: Underlying conditions such as arthritis or tumors can alter joint architecture, causing dislocation without significant trauma.

Symptoms

The symptoms of a luxation are usually immediate and unmistakable:

Severe pain in the affected joint, typically occurring instantly after the injury
Visible deformity of the joint (the joint appears out of place or misshapen)
Restricted or complete loss of movement in the affected joint
Swelling and bruising around the joint
Numbness or tingling, if nerves or blood vessels are compressed or injured

If a dislocation is suspected, the joint should be immobilized immediately and medical care sought without delay. Attempting to self-reduce the joint is dangerous and can cause serious damage to nerves, blood vessels, and bones.

Diagnosis

The diagnosis of a luxation is established through the following steps:

Physical examination: The physician assesses joint position, as well as circulation, motor function, and sensation (neurovascular assessment).
X-ray: Confirms the dislocation, assesses the degree of displacement, and rules out associated fractures.
MRI or CT scan: Used in complex dislocations or when soft tissue injuries (e.g., tendon or ligament tears) are suspected.

Treatment

Reduction

The primary treatment is reduction -- the manual repositioning of the displaced bones back into their normal alignment. This procedure is performed exclusively by trained medical professionals, typically under pain relief medication or short-term sedation.

Immobilization and Rehabilitation

Following reduction, the joint is immobilized for a defined period using a splint or bandage to allow ligaments and soft tissues to heal. This is followed by structured physiotherapy aimed at restoring muscle strength, joint stability, and range of motion.

Surgical Treatment

Surgery may be necessary when dislocations are accompanied by fractures, tendon ruptures, or severe ligament damage. Recurrent (habitual) dislocations -- particularly of the shoulder -- are also commonly treated surgically to restore lasting joint stability.

Complications

Untreated or improperly managed dislocations can result in permanent joint damage, chronic instability, early-onset osteoarthritis, or nerve injury. Early medical intervention is therefore essential for a good recovery outcome.

References

Rockwood, C.A., Green, D.P. (Eds.) (2019). Rockwood and Green's Fractures in Adults. Wolters Kluwer.
Browner, B.D. et al. (2019). Skeletal Trauma: Basic Science, Management, and Reconstruction. Elsevier Saunders.
American Academy of Orthopaedic Surgeons (AAOS): Joint Dislocation Overview. Available at: https://www.aaos.org

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