Quadratus Lumborum: Difference between revisions

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[[File:Quadratuslumborum.png|thumb|411x411px|anatomy of Quadratus Lumborum]]'''Original Editor '''- [[User:Vanessa Rhule|Vanessa Rhule]]
'''Original Editor '''- [[User:Vanessa Rhule|Vanessa Rhule]]


'''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}}
'''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}}
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== Anatomy ==
== Anatomy ==


=== OriginAnatomyexpert.com. AnatomyEXPERT: Quadratus lumborum - Structure Detail [Internet]. 2015 [cited 15 August 2015]. Available from: http://www.anatomyexpert.com/app/structure/5307/===
=== Origin ===


Posterior Iliac Crest
内侧低矿房的一半er of 12th rib and tips of transverse processes of lumbar vertebraeAnatomy expert. 3D - Quadratus lumborum. Available from: http://www.anatomyexpert.com/app/structure/5307/ (accessed from 19 April 2019)Keith L. , Anne M. R . Clinically Oriented Anatomy 7th edition. philidephia : Lippincott Williams & Wilkins.2017


=== Insertion===
=== Insertion ===


Medial half of 12th ribandtransverse processesoflumbar vertebrae
Iliolumbar ligamentandinternal lipofPosterior iliac Crest




[[File:Quadratus-lumborum-muscle-fibers.jpg|thumb|407x407px]]
[[Image:Quadratus-lumborum-muscle-fibers.jpg|500x300px]]


=== Nerve Supply ===
=== Nerve Supply ===
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Subcostal nerve (T12)
Iliohypogastric and Ilioinguinal nerve (both from L1)
Branches from the ventral rami (L2 and L3)
Subcostal nerve (T12)
Iliohypogastric and Ilioinguinal nerve (both from L1)
Branches from the ventral rami (L2 and L3)


=== Blood SupplyJarvis M. Quadratus lumborum| Radiology Reference Article | Radiopaedia.org [Internet]. Radiopaedia.org. 2015 [cited 15 August 2015]. Available from: http://radiopaedia.org/articles/quadratus-lumborum ===
=== Blood SupplyRadiopaedia. Quadratus lumborum. Available from: http://radiopaedia.org/articles/quadratus-lumborum(accessed 15 August 2015) ===


Branches of the subcostal artery
Branches of the lumbar arteries
The lumbar branch of the iliolumbar artery
The arteria lumbalis ima from the median sacral artery.
Branches of the subcostal artery
Branches of the lumbar arteries
The lumbar branch of the iliolumbar artery
The arteria lumbalis ima from the median sacral artery.
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=== Actions ===
=== Actions ===


Quadratus Lumborum fixesthe12thrib tostabilisediaphragm attachments during inspiration
Quadratus Lumborum fixesthe 12thrib tostabilizediaphragm attachments during inspiration


Lateral flexes the vertebral column
Lateral flexes the vertebral column


Extends lumbar vertebrae
Extends lumbar vertebrae
it forms with the contralateral [[Tensor Fascia Lata|Tensor fascia lata]] and [[Gluteus Medius|Gluteus medius]] a '''lateral myofascial sling''' which aims to maintain '''frontal''' plane stability of the pelvis.


=== Functional contributions ===
=== Functional contributions ===
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The muscle group is considered a postural muscle group.
The muscle group is considered a postural muscle group.
It's one of the muscles that tends to be tight and overactivePage .P, Frank C, Lardner R. Assessment and Treatment of Muscle Imbalance: The Janda Approach .Champaign . Human Kinetics. 2010.


== Trigger Point Referral Pattern ==
== Trigger Point Referral Pattern ==
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[[Image:Quadratus lumborum trigger points referred pain-1024x768.jpg|500x300px]]
[[Image:Quadratus lumborum trigger points referred pain-1024x768.jpg|500x300px]]


[[Image:Quadratus-lumborum-trigger-point-interactions.jpg|500x300px]]
[[Image:Quadratus-lumborum-trigger-point-interactions.jpg|405x405px]]




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=== Related Pathologies ===
=== Related Pathologies ===


Dysfunction of the Lumbar structures whether degenerative, neuropathy, and/or inflammatory, may contribute to poor muscle firing and weak stabilization by the QL. Reller P. Low Back and Lower Body Myofascial Pain Syndromes| Acupuncture Integrated [Internet]. Acupunctureintegrated.com. 2015 [cited 22 August 2015]. Available from: http://www.acupunctureintegrated.com/articles/low-back-and-lower-body-myofascial-pain-syndromes
Dysfunction of the Lumbar structures whether degenerative, neuropathy, and/or inflammatory, may contribute to poor muscle firing and weak stabilization by the QL. Acupuncture Integrated. Low Back and Lower Body Myofascial Pain Syndromes. Available from: http://www.acupunctureintegrated.com/articles/low-back-and-lower-body-myofascial-pain-syndromes
[accessed 19 April 2019].


Lumbar spine pathologies like bulging discs, and facet joint hypertrophy from chronic inflammation may effect nerve conduction and response to the QL and Iliopsoas resulting in poor muscle stabilization and mechanical stress from chronic contracture. 
Lumbar spine pathologies like bulging discs, and facet joint hypertrophy from chronic inflammation may effect nerve conduction and response to the QL and Iliopsoas resulting in poor muscle stabilization and mechanical stress from chronic contracture. 
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[[Category:Muscles]] [[Category:Low_Back_Pain]] [[Category:Lumbar_Anatomy]]
[[Category:Muscles]]
[[Category:Low_Back_Pain]]
[[Category:Lumbar_Anatomy]]

Revision as of 06:28, 19 April 2019

anatomy of Quadratus Lumborum
起源al Editor-Vanessa Rhule

Top Contributors-Vanessa Rhule,Lucinda hampton,Kim Jackson,Ahmed Nasr,George Prudden,Joao Costa,Admin,Wendy Walker,Naomi O'Reilly,WikiSysopand万达van Niekerk

Description[edit|edit source]

这个词“四方肌来自拉丁词rus" meaning “square” while Lumborum comes from the Latin word "lumbus" for “loin.”

A thick, irregular, quadrilateral-shaped muscle sheet that lies in the posterior abdominal wall.

Anatomy[edit|edit source]

起源[edit|edit source]

内侧低矿房的一半er of 12th rib and tips of transverse processes of lumbar vertebrae[1][2]

Insertion[edit|edit source]

Iliolumbar ligament and internal lip of Posterior iliac Crest[1][2]


Quadratus-lumborum-muscle-fibers.jpg

Nerve Supply[1][edit|edit source]

Subcostal nerve (T12)
Iliohypogastric and Ilioinguinal nerve (both from L1)
Branches from the ventral rami (L2 and L3)

Blood Supply[3][edit|edit source]

Branches of the subcostal artery
Branches of the lumbar arteries
The lumbar branch of the iliolumbar artery
The arteria lumbalis ima from the median sacral artery.

Function[edit|edit source]

Actions[3][edit|edit source]

Quadratus Lumborum fixes the 12th rib to stabilize diaphragm attachments during inspiration

Lateral flexes the vertebral column

Extends lumbar vertebrae

it forms with the contralateralTensor fascia lataandGluteus mediusalateral myofascial slingwhich aims to maintainfrontalplane stability of the pelvis.

Functional contributions[edit|edit source]

The primary antagonist to each Quadratus Lumborum muscle is the Quadratus Lumborum muscle on the other side of the body.[4]

The muscle group is considered a postural muscle group.

It's one of the muscles that tends to be tight and overactive[5]

Trigger Point Referral Pattern[edit|edit source]

Quadratus lumborum trigger points referred pain-1024x768.jpg

Quadratus-lumborum-trigger-point-interactions.jpg


Techniques[edit|edit source]

Palpation[edit|edit source]

Related Pathologies[edit|edit source]

Dysfunction of the Lumbar structures whether degenerative, neuropathy, and/or inflammatory, may contribute to poor muscle firing and weak stabilization by the QL.[6]

Lumbar spine pathologies like bulging discs, and facet joint hypertrophy from chronic inflammation may effect nerve conduction and response to the QL and Iliopsoas resulting in poor muscle stabilization and mechanical stress from chronic contracture.[6]

Moaratty-Koehler Syndrome (MKS) is another condition related to QL dysfunction

Treatment[edit|edit source]

Resources[edit|edit source]

References[edit|edit source]

References will automatically be added here, seeadding references tutorial.

  1. ↑1.01.11.2Anatomy expert. 3D - Quadratus lumborum. Available from:http://www.anatomyexpert.com/app/structure/5307/(accessed from 19 April 2019)
  2. ↑2.02.1Keith L. , Anne M. R . Clinically Oriented Anatomy 7th edition. philidephia : Lippincott Williams & Wilkins.2017
  3. ↑3.03.1Radiopaedia. Quadratus lumborum. Available from:http://radiopaedia.org/articles/quadratus-lumborum(accessed 15 August 2015)
  4. ↑Perry D. Quadratus Lumborum Trigger Points: Masters of Low Back Pain | TriggerPointTherapist.com [Internet]. Triggerpointtherapist.com. 2011 [cited 15 August 2015]. Available from:http://www.triggerpointtherapist.com/blog/quadratus-lumborum-trigger-points/ql-trigger-points-masters-low-back-pain/
  5. ↑Page .P, Frank C, Lardner R. Assessment and Treatment of Muscle Imbalance: The Janda Approach .Champaign . Human Kinetics. 2010.
  6. ↑6.06.1Acupuncture Integrated. Low Back and Lower Body Myofascial Pain Syndromes. Available from:http://www.acupunctureintegrated.com/articles/low-back-and-lower-body-myofascial-pain-syndromes[accessed 19 April 2019].
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