Lumbar instability and clinical diagnosis

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Thiwaphon Chatprem Rungthip Puntumetakul Sawitri Wanpen Wantanee Yodchaisarn Suwalee Namwongsa Jaturat Kanpittaya Preeda Arrayawichanon


The three stability systems of the lumbar spine including active subsystem, passive subsystem, and neural control subsystem allow achieving the spinal stability during activities of daily living. Stability of the lumbar spine is essential for the spinal column; to prevent neural system and delay the declination due to the movement. The impairment of any spinal subsystems together with inappropriate compensation of the remaining subsystem is a leading cause of lumbar instability. Lumbar instability can be divided into 2 types, radiological lumbar instability and clinical lumbar instability. Lumbar instability may develop to more severity as spondylolisthesis if the patients do not receive a suitable management. However, if healthcare providers and patients understand the pathology of the lumbar instability, they will realize the harmful effects and lead to the appropriate management. Consequently, the progressive degeneration of lumbar instability will be delayed or inhibited.

Therefore, this review article provided an overview of the most common concept of lumbar stability system, lumbar instability, as well as the clinical diagnosis for generalizing to healthcare providers, patients and people who interested in lumbar instability condition.


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Chatprem T, Puntumetakul R, Wanpen S, Yodchaisarn W, Namwongsa S, Kanpittaya J, Arrayawichanon P. Lumbar instability and clinical diagnosis. Thai Journal of Physical Therapy [Internet]. 19Jun.2018 [cited 20Jul.2018];40(2):79-3. Available from:
Review Article


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