2009
DOI: 10.1016/j.ocl.2008.10.010
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Osteonecrosis of the Knee: A Review of Three Disorders

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Cited by 79 publications
(71 citation statements)
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References 69 publications
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“…Surgical options include a spectrum from microfracture treatment, osteochondral defect repair, extra-articular core decompression, high tibial osteotomy, unicompartmental knee replacement to total knee replacement. 7 Our patient was initially planned for high tibial osteotomy but due to severe varus collapse and associated degenerative changes, total knee replacement was done. Osteonecrosis may be associated with osteoporosis or osteopenia.…”
Section: Discussionmentioning
confidence: 99%
“…Surgical options include a spectrum from microfracture treatment, osteochondral defect repair, extra-articular core decompression, high tibial osteotomy, unicompartmental knee replacement to total knee replacement. 7 Our patient was initially planned for high tibial osteotomy but due to severe varus collapse and associated degenerative changes, total knee replacement was done. Osteonecrosis may be associated with osteoporosis or osteopenia.…”
Section: Discussionmentioning
confidence: 99%
“…Whereas secondary osteonecrosis is associated with a number of known risk factors, such as corticosteroid therapy and alcohol use, the pathophysiologic changes leading to spontaneous osteonecrosis remain controversial. One hypothesis is that vascular compromise of the subchondral bone results in ischemia and subsequent bone edema, which can lead to subchondral insufficiency; others have proposed insufficiency fracture as the initiating event [22][23][24] . Ficat was among the first to describe osteonecrosis, originally in the femoral head 25 .…”
Section: Discussionmentioning
confidence: 99%
“…Bununla birlikte steroid kullan›m›na ba¤l› olarak adiposit say›s›nda ve büyüklü-¤ünde art›fl kemik ili¤inde yer de¤ifltirmeye neden olmaktad›r. Kemik geniflleyemeyen bir kompartman oldu¤u için sonuçta kemik içi bas›nç artar, vasküler kollaps ve iskemi sonucunda da osteonekroz geliflir (4). ‹mmün (idiyopatik) trombositopenik purpura (‹TP) akut ve kronik olarak ikiye ayr›lan ve düflük trombosit say›s› ve muko-kü-tanöz kanama ile karakterize olan bir hastal›kt›r (5).…”
Section: G Gi Ir Ri Ifl Flunclassified
“…Steroid kullan›m› sonras› neden osteonekroz geliflti¤ini aç›kla-yan iki teori kabul görmektedir. Bunlar›n birincisi, ya¤ embolisi ile mikrosirkülasyonun bozulmas›, ikincisi ise kemik ili¤inin ya¤ dokusu ile infiltrasyonu sonucu interosseöz bas›nc›n artmas›d›r (4,6). Her ne kadar steroid kullan›m süresinin ve kullan›lan toplam dozun osteonekroz gelifliminde önemli oldu¤u ileri sürülse de çok k›sa veya uzun süre steroid kullananlarda ya da intra artiküler enjeksiyonlara sekonder olarak da osteonekroz geliflebilir (6).…”
Section: O Ol Lg Gu U 2unclassified
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