Dictionary

subluxation en · NOUN

Pronunciation

• (US) audio
• /ˌsəbˌləkˈseɪ.ʃən/ (US)
• /ˌsʌb.lʌkˈseɪ.ʃən/ (UK)

Etymology

From French subluxation, from New Latin subluxatio, from subluxare (“to subluxate, to partially displace”) + -atio (“-ation: forming abstract nouns”), from sub- (“sub-: under, below, lesser”) + luxare (“to dislocate; to displace”) after the model of Ancient Greek παράρθρημα (parárthrēma). Equivalent to sub- + luxation.

Meanings

1. (countable, uncountable) A partial dislocation of a joint, in which the articulating surfaces remain in partial contact.
   • Subluxation of a tooth may cause bleeding and mobility of the tooth as a result of injury to the periodontal fibers. Displacement of the tooth is not usually apparent. Approximately 15 % to 20 % of reported trauma cases exhibit [it]. 2004, Michael Crocetti, Michael A. Barone, Frank A. Oski, Oski's Essential Pediatrics, Lippincott Williams & Wilkins, →ISBN, page 176:
   • Many diseases and trauma are associated with lens subluxation. Clinical Features. All degrees of subluxation may be seen. Classically, iridodonesis is seen on slit lamp examination with eye movement. Phakodonesis may also be observed. 2001, William Tasman, Edward A. Jaeger, The Wills Eye Hospital Atlas of Clinical Ophthalmology, Lippincott Williams & Wilkins, →ISBN, page 78:
   • Lateral subluxation of the atlantoaxial joints has also been observed in rheumatoid arthritis patients. 1988, Donald Resnick, Diagnosis of Bone and Joint Disorders:
   • The patient experienced subluxations of his right ulna, his lower right rear molar, and the lens of his left eye.

Forms

Antonyms

luxation · alignment

Relateds

sublux · subluxate · vertebra · joint

Synonyms

misalignment