Lumbar Instability: Difference between revisions
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== Definition/Description == | == Definition/Description == | ||
The spinal system has three basic functions to perform, namely carrying loads, protection of spinal cord and nerve roots and allowing movement between body parts. To make sure that the spinal system can fulfill these tasks, there needs to be a spinal stabilizing system. [Panjabi, 1992 a]<br>The stabilizing system can be represented by means of three subsystems. The passive subsystem consisting of vertebrae, facet joints, intervertebral discs, spinal ligaments, joint capsules and passive muscle support. Then there is the neural feedback system containing force and motion transducers and the neural control centers. The third system is the active subsystem including the muscles and tendons surrounding the spinal column. Thus the spine needs the integrated function of the three subsystems, mentioned above, to control stability and movement. [Panjabi, 1992 a]<br>Muscles are one of the three important factors contributing to stability of the spine. But is there one muscle that deserves more attention than all the others? At a given time, there can be one muscle that is more important than another one. Only, the importance of the individual muscles change when there are alterations in body movements and positions. This change will happen by changes and adjustment in relative muscle activation. All muscles are important, a clinical focus on one muscle and not the whole system will be pernicious. [McGill et al., 2003] Thus, Lumbar Multifidus for example, has the ability to control and restore motion of an uninjured segment. Nevertheless is it important to consider that all lumbar muscles contribute to stability of the lumbar spine. [McGill et al., 2003; MacDonald2006]<br><br> | |||
== Clinically Relevant Anatomy == | == Clinically Relevant Anatomy == | ||
Revision as of 20:18, 30 December 2010
Original Editors - Bruno Luca, Anke Jughters
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Definition/Description[edit | edit source]
The spinal system has three basic functions to perform, namely carrying loads, protection of spinal cord and nerve roots and allowing movement between body parts. To make sure that the spinal system can fulfill these tasks, there needs to be a spinal stabilizing system. [Panjabi, 1992 a]
The stabilizing system can be represented by means of three subsystems. The passive subsystem consisting of vertebrae, facet joints, intervertebral discs, spinal ligaments, joint capsules and passive muscle support. Then there is the neural feedback system containing force and motion transducers and the neural control centers. The third system is the active subsystem including the muscles and tendons surrounding the spinal column. Thus the spine needs the integrated function of the three subsystems, mentioned above, to control stability and movement. [Panjabi, 1992 a]
Muscles are one of the three important factors contributing to stability of the spine. But is there one muscle that deserves more attention than all the others? At a given time, there can be one muscle that is more important than another one. Only, the importance of the individual muscles change when there are alterations in body movements and positions. This change will happen by changes and adjustment in relative muscle activation. All muscles are important, a clinical focus on one muscle and not the whole system will be pernicious. [McGill et al., 2003] Thus, Lumbar Multifidus for example, has the ability to control and restore motion of an uninjured segment. Nevertheless is it important to consider that all lumbar muscles contribute to stability of the lumbar spine. [McGill et al., 2003; MacDonald2006]
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Therapy Exercises for Lumbar Instability
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