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{{DiseaseDisorder infobox |
{{DiseaseDisorder infobox |
   Name        = Lordosis |
   Name        = Lordosis |
   ICD10      = M40.3-M40.5 |
   ICD10      = |
   ICD9        = {{ICD9|737.2}} |
   ICD9        = {{ICD9|737.2}} |
}}
}}
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{{SK}} Swayback; saddle back; hyper-lordosis; hollow back; flat-back
{{SK}} Swayback; saddle back; hyper-lordosis; hollow back; flat-back
==Overview==
==[[Lordosis overview|Overview]]==
'''Lordosis''' (commonly referred to as '''swayback''', '''saddle back''', or '''hyper-lordosis''') is a medical term used to describe an inward curvature of a portion of the [[vertebral column]].<ref>Gylys, B A., Wedding M E, Medical Terminology Systems, F.A. Davis Company 2005</ref> Two segments of the vertebral column, namely cervical and lumbar, are ''normally'' lordotic, that is, they are set in a curve that has its convexity [[Human_anatomical_terms#Anatomical_directions|anteriorly]] (the front) and concavity [[Human_anatomical_terms#Anatomical_directions|posteriorly]] (behind), in the context of human anatomy. When referring to the anatomy of other mammals, the direction of the curve is termed ''ventral.''  Curvature in the opposite direction, that is, apex posteriorly (humans) or dorsally (mammals) is termed [[kyphosis]].


''Lordotic curvatures'' of the vertebral column, also known as ''secondary curvatures'' are caused mainly because of the difference of thickness between the anterior and posterior part of the [[intervertebral disc]]. Those curvatures start to appear during the fetal period, but don't become evident until [[infancy]].
==[[Lordosis pathophysiology|Pathophysiology]]==


Excessive lordotic curvature is also called '''hollow back''', '''saddle back''', and '''swayback'''. Common causes of excessive lordosis including tight [[Human back|low back]] muscles, excessive [[visceral fat]], and pregnancy.  Loss of lordosis is sometimes seen with painful spinal conditions. If rigid, usually after spinal fusion surgery, it is known as '''flat-back'''.
==[[Lordosis causes|Causes]]==


The familiar concave shape of the horse's back is, by extension, described as '''lordotic'''.
==[[Lordosis differential diagnosis|Differentiating Lordosis from other Diseases]]==


[[Lordosis behavior]] refers to the position that some mammals (cats, mice, rats, etc.) display when they are ready to mate.
==[[Lordosis epidemiology and demographics|Epidemiology and Demographics]]==


==References==
==[[Lordosis risk factors|Risk Factors]]==
{{reflist|2}}
 
==[[Lordosis natural history, complications and prognosis|Natural History, Complications and Prognosis]]==
 
==Diagnosis==
[[Lordosis history and symptoms|History and Symptoms]] | [[Lordosis physical examination|Physical Examination]] | [[Lordosis x ray|X Ray]] | [[Lordosis MRI|MRI]]
==Treatment==
[[Lordosis surgery|Surgery]] | [[Lordosis primary prevention|Primary Prevention]] | [[Lordosis cost-effectiveness of therapy|Cost-Effectiveness of Therapy]] | [[Lordosis future or investigational therapies|Future or Investigational Therapies]]
 
==Case Studies==
:[[Lordosis case study one|Case #1]]


== Related Chapters ==
== Related Chapters ==
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[[pt:Lordose]]
[[pt:Lordose]]
[[ru:Лордоз]]
[[ru:Лордоз]]
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Latest revision as of 14:46, 5 November 2012

Template:DiseaseDisorder infobox

Lordosis Microchapters

Home

Patient Information

Overview

Pathophysiology

Causes

Differentiating Lordosis from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Physical Examination

X Ray

MRI

Treatment

Surgery

Primary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Lordosis On the Web

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X-rays
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MRI

Ongoing Trials at Clinical Trials.gov

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NICE Guidance

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Directions to Hospitals Treating Lordosis

Risk calculators and risk factors for Lordosis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]

Synonyms and keywords: Swayback; saddle back; hyper-lordosis; hollow back; flat-back

Overview

Pathophysiology

Causes

Differentiating Lordosis from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms | Physical Examination | X Ray | MRI

Treatment

Surgery | Primary Prevention | Cost-Effectiveness of Therapy | Future or Investigational Therapies

Case Studies

Case #1

Related Chapters

External links

Template:Diseases of the musculoskeletal system and connective tissue

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