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Dysfunction

TERMINOLOGY (SYNONYMS)

  • Subluxation
  • Spinal motion segment dysfunction
  • Abnormal spinal movement

 
INTRODUCTION

The phrase spinal segmental dysfunction refers to abnormal movement of a spinal motion segment. The abnormal movement may be passive or active. A spinal motion segment is defined as two adjacent vertebrae, the intervertebral disc between them, and the ligaments which support them. A spinal segment may move to much (hypermobile), may have limited movement (hypomobile), may move in an abnormal pattern (paradoxical movement) or it may not move at all (immobile or fixed. A normal spinal segment should have a little bounce detected with manual palpation. A loss of normal spinal segment joint play is a form of spinal segment hypomobility. Spinal segmental dysfunction can be further classified by whether there is associated reactive paraspinal muscle spasm when movement is evoked.

PREVALENCE

Spinal segment dysfunction can occur in individuals of all ages. There is no predilection between males or females. Trauma to the spine from a simple sprain strain to severe injury will cause a loss of normal intervertebral motion. Segmental dysfunction is likely to occur in the presence of degenerative changes of the spine therefore it is prevalent in elderly individuals. 



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To learn more about your spine. spinehealth, and available spinecare go to the International Spine Assocition (ISA) at www.spineinformation.org. The primary mission of the ISA is to improve spinehealth and spinecare through education. The ISA is committed to disseminating need-to-know information throught the World Wide Web in numerous languages covering many topics related to the spine, including information about spine disorders, spine heath, advances in technology and available spinecare



DISCLAIMER
All health information posted on the site is based on the latest research and national treatment standards, and have been written or reviewed and appoved by the American Acedemy of Spine Physicians and/or International Spine Association physicians or health professionals unless otherwise specified.



The information provided on this site is designed to support. not replace,
the relationship that exists between patient/site visitor and his/her physician.