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Image = Ostermyelitis Tibia.jpg |
Image = Ostermyelitis Tibia.jpg |
Caption = Osteomyelitis of the [[tibia]] of a young child. Numerous [[abscess]]es in the bone show as radiolucency. |
Caption = Osteomyelitis of the [[tibia]] of a young child. Numerous [[abscess]]es in the bone show as radiolucency. |
ICD10 = {{ICD10|M|86||m|86}} |
ICD9 = {{ICD9|730}} |
ICDO = |
OMIM = |
DiseasesDB = 9367 |
MedlinePlus = 000437 |
eMedicineSubj = |
eMedicineTopic = |
MeshID = D010019 |
}}
}}
{{Osteomyelitis}}
{{Osteomyelitis}}
{{CMG}}'''; Associate Editor(s)-In-Chief:''' {{CZ}}
{{CMG}}; {{AE}} {{MehdiP}},{{NRM}}


{{SK}} OM


== Presentation ==
==[[Osteomyelitis overview|Overview]]==


Generally, microorganisms may infect bone through one or more of three basic methods: via the [[bloodstream]], contiguously from local areas of infection (as in [[cellulitis]]), or penetrating [[Physical trauma|trauma]], including [[iatrogenic]] causes such as [[joint replacement]]s or internal fixation of [[Bone fracture|fracture]]s or [[endodontic therapy|root-canaled]] teeth.<ref name="Robbins" /> Once the bone is infected, [[leukocyte]]s enter the infected area, and in their attempt to [[phagocytosis|engulf]] the infectious organisms, release [[enzyme]]s that [[Lysis|lyse]] the bone. [[Pus]] spreads into the bone's blood vessels, impairing their flow, and areas of devitalized infected bone, known as ''sequestra'', form the basis of a chronic infection.<ref name="Robbins" /> Often, the body will try to create new bone around the area of [[necrosis]]. The resulting new bone is often called an [[involucrum]].<ref name="Robbins" /> On [[histology|histologic]] examination, these areas of necrotic bone are the basis for distinguishing between ''[[Acute (medicine)|acute]] osteomyelitis'' and ''[[wikt:chronic|chronic]] osteomyelitis''. Osteomyelitis is an infective process which encompasses all of the bone ([[wikt:osseous|osseous]]) components, including the bone marrow. When it is chronic it can lead to bone [[sclerosis]] and deformity.
==[[Osteomyelitis historical perspective|Historical Perspective]]==


In [[infant]]s, the infection can spread to the [[joint]] and cause [[arthritis]]. In children, large subperiosteal abscesses can form because the [[periosteum]] is loosely attached to the surface of the bone.<ref name="Robbins" />
==[[Osteomyelitis classification|Classification]]==


Because of the particulars of their blood supply, the [[tibia]], [[femur]], [[humerus]], [[vertebra]], the [[maxilla]], and the mandibular bodies are especially susceptible to osteomyelitis.<ref>{{cite web
==[[Osteomyelitis pathophysiology|Pathophysiology]]==
| url = http://www.emedicine.com/emerg/topic349.htm
| title = Osteomyelitis
| accessdate = 2007-11-11
| author = King MD, Randall W.
| coauthors = David Johnson, MD, FACEP
| date = 2006-07-13
| work = [[eMedicine]]
| publisher = [[WebMD]]
}}</ref> However, abscesses of any bone may be precipitated by trauma to the affected area. Many infections are caused by ''[[Staphylococcus aureus]]'', a member of the normal [[flora (microbiology)|flora]] found on the [[skin]] and [[mucous membrane]]s.


* Hematogenous long-bone osteomyelitis
==[[Osteomyelitis causes|Causes]]==
:* Abrupt onset of high fever (fever is present in only 50% of neonates with osteomyelitis)
:* Fatigue
:* Irritability
:* Malaise
:* Restriction of movement (pseudoparalysis of limb in neonates)
:* Local edema, erythema, and tenderness
* Hematogenous vertebral osteomyelitis
:* Insidious onset
:* History of an acute bacteremic episode
:* May be associated with contiguous vascular insufficiency
:* Local edema, erythema, and tenderness
:* Failure of a young child to sit up normally2
* Chronic osteomyelitis
:* Non-healing ulcer
:* Sinus tract drainage
:* Chronic fatigue
:* Malaise


==References==
==[[Osteomyelitis differential diagnosis|Differentiating Osteomyelitis from other Diseases]]==
{{Reflist|2}}


==See also==
==[[Osteomyelitis epidemiology and demographics|Epidemiology and Demographics]]==
*[[Brodie abscess]]
 
==[[Osteomyelitis risk factors|Risk Factors]]==
 
==[[Osteomyelitis natural history, complications and prognosis|Natural History, Complications and Prognosis]]==
 
==Diagnosis==
 
 
[[Osteomyelitis history and symptoms|History and Symptoms]] | [[Osteomyelitis physical examination|Physical Examination]] | [[Osteomyelitis laboratory findings|Laboratory Findings]]  | [[Osteomyelitis x ray|X Ray]] | [[Osteomyelitis CT|CT]] | [[Osteomyelitis MRI|MRI]] | [[Osteomyelitis other imaging findings|Other Imaging Findings]] | [[Osteomyelitis other diagnostic studies|Other Diagnostic Studies]]
 
==Treatment==
 
[[Osteomyelitis medical therapy|Medical Therapy]] | [[Osteomyelitis surgery|Surgery]] | [[Osteomyelitis prevention|Prevention]] | [[Osteomyelitis cost-effectiveness of therapy|Cost-Effectiveness of Therapy]] | [[Osteomyelitis future or investigational therapies|Future or Investigational Therapies]]
 
==Case Studies==


==External Links==
[[Osteomyelitis case study one|Case #1]]
* [http://goldminer.arrs.org/search.php?query=Osteomyelitis Goldminer: Osteomyelitis]


==Additional Resources==
==Related Chapters==
* {{MerckManual|5|54|b}}
*[[Brodie abscess]]
* {{Chorus|00298}}


{{Diseases of the musculoskeletal system and connective tissue}}
{{Diseases of the musculoskeletal system and connective tissue}}
[[Category:Orthopedics]]
[[Category:Bacterial diseases]]
[[Category:Skeletal disorders]]
[[Category:Infectious disease]]
[[Category:Overview complete]]
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[[de:Osteomyelitis]]
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[[pt:Osteomielite]]
[[pt:Osteomielite]]


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Latest revision as of 23:27, 29 July 2020

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Osteomyelitis
Osteomyelitis of the tibia of a young child. Numerous abscesses in the bone show as radiolucency.

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Historical Perspective

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CT

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Case #1

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Seyedmahdi Pahlavani, M.D. [2],Nate Michalak, B.A.

Synonyms and keywords: OM

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Osteomyelitis from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms | Physical Examination | Laboratory Findings | X Ray | CT | MRI | Other Imaging Findings | Other Diagnostic Studies

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

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Case #1

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