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Difference between revisions of "Avascular necrosis of the femoral head"
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Avascular necrosis of the femoral head (view source)
Revision as of 12:09, 30 May 2014
, 12:09, 30 May 2014no edit summary
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It is often just referred to as '''avascular necrosis''', abbreviated '''AVN'''. | It is often just referred to as '''avascular necrosis''', abbreviated '''AVN'''. | ||
In children idiopathic AVN of the of capital femoral epiphysis is known as ''[[Legg–Calvé–Perthes disease]]''.<ref name=pmid24267210>{{cite journal |author=Shah H |title=Perthes disease: evaluation and management |journal=Orthop. Clin. North Am. |volume=45 |issue=1 |pages=87–97 |year=2014 |month=January |pmid=24267210 |doi=10.1016/j.ocl.2013.08.005 |url=}}</ref> | |||
==General== | ==General== | ||
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</ref> | </ref> | ||
*Empty lacunae - indicative of necrotic bone (osteonecrosis). | *Empty lacunae - indicative of necrotic bone (osteonecrosis). | ||
*Degnerative changes of the cartilage overlying the necrotic bone.<ref name=pmid15885478/> | |||
DDx: | DDx: | ||
*Suboptimal [[tissue fixation]].<ref>{{Cite journal | last1 = Fondi | first1 = C. | last2 = Franchi | first2 = A. | title = Definition of bone necrosis by the pathologist. | journal = Clin Cases Miner Bone Metab | volume = 4 | issue = 1 | pages = 21-6 | month = Jan | year = 2007 | doi = | PMID = 22460748 }}</ref> | *Suboptimal [[tissue fixation]].<ref>{{Cite journal | last1 = Fondi | first1 = C. | last2 = Franchi | first2 = A. | title = Definition of bone necrosis by the pathologist. | journal = Clin Cases Miner Bone Metab | volume = 4 | issue = 1 | pages = 21-6 | month = Jan | year = 2007 | doi = | PMID = 22460748 }}</ref> | ||
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Joint capsule tissue with focal lymphocytes and plasma cells is present. | Joint capsule tissue with focal lymphocytes and plasma cells is present. | ||
===Remote AVN with focal lesion=== | |||
<pre> | |||
FEMORAL HEAD AND SURROUNDING TISSUE, RIGHT, HIP ARTHROPLASTY: | |||
- FOCAL DEGENERATIVE CHANGES OF THE CARTILAGE WITH AN UNDERLYING WEDGE OF FIBROSIS | |||
AND REMODELLED BONE COMPATIBLE WITH A HISTORY OF AVASCULAR NECROSIS. | |||
- DEGENERATIVE JOINT DISEASE. | |||
- BENIGN FIBROADIPOSE TISSUE AND CARTILAGE. | |||
- NEGATIVE FOR MALIGNANCY. | |||
</pre> | |||
==See also== | ==See also== | ||
*[[Femoral head]]. | *[[Femoral head]]. | ||
*[[Legg–Calvé–Perthes disease]]. | |||
==References== | ==References== | ||