Subluxation

The term subluxation refers to misalignment or partial dislocation of a joint, used extensively by chiropractors when it relates to spine misalignment.

Trapeziometacarpal osteoarthritis with subluxation

WHO definition

• According to the World Health Organization (WHO), a subluxation is a "significant structural displacement" and is therefore always visible on static imaging studies, such as X-rays.
• The exact definition of subluxation in the medical field depends on the anatomical part being involved.

Joints

X-ray of patellar subluxation

A subluxation of a joint is where a connecting bone is partially out of the joint.

Lens of the eye

A subluxation of the lens within the eye is called ectopia lentis, wherein it is displaced or malpositioned.

Teeth

Main article: Dental subluxation

• A subluxation of a tooth is a dental traumatic injury in which the tooth has increased mobility but has not been displaced from the mandible or maxilla.
• This is a common condition and one of the most common dental traumatic disorders

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