Heterotopic ossification of the knee joint in intensive care unit patients: early diagnosis with magnetic resonance imaging

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dc.contributor.authorArgyropoulou, M. I.en
dc.contributor.authorKostandi, E.en
dc.contributor.authorKosta, P.en
dc.contributor.authorZikou, A. K.en
dc.contributor.authorKastani, D.en
dc.contributor.authorGaliatsou, E.en
dc.contributor.authorKitsakos, A.en
dc.contributor.authorNakos, G.en
dc.date.accessioned2015-11-24T19:13:55Z
dc.date.available2015-11-24T19:13:55Z
dc.identifier.issn1466-609X-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/21241
dc.rightsDefault Licence-
dc.subjectAdulten
dc.subjectAgeden
dc.subjectEarly Diagnosisen
dc.subjectHumansen
dc.subject*Intensive Care Unitsen
dc.subjectKnee Joint/*pathologyen
dc.subjectMagnetic Resonance Imaging/*methodsen
dc.subjectMaleen
dc.subjectMiddle Ageden
dc.subjectOssification, Heterotopic/*diagnosis/pathologyen
dc.subjectProspective Studiesen
dc.subjectTime Factorsen
dc.titleHeterotopic ossification of the knee joint in intensive care unit patients: early diagnosis with magnetic resonance imagingen
heal.abstractINTRODUCTION: Heterotopic ossification (HO) is the formation of bone in soft tissues. The purpose of the present study was to evaluate the magnetic resonance imaging (MRI) findings on clinical suspicion of HO in the knee joint of patients hospitalised in the intensive care unit (ICU). METHODS: This was a case series of 11 patients requiring prolonged ventilation in the ICU who had the following diagnoses: head trauma (nine), necrotising pancreatitis (one), and fat embolism (one). On clinical suspicion of HO, x-rays and MRI of the knee joint were performed. Follow-up x-rays and MRI were also performed. RESULTS: First x-rays were negative, whereas MRI (20.2 +/- 6.6 days after admission) showed joint effusion and in fast spin-echo short time inversion-recovery (STIR) images a 'lacy pattern' of the muscles vastus lateralis and medialis. The innermost part of the vastus medialis exhibited homogeneous high signal. Contrast-enhanced fat-suppressed T1-weighted images also showed a 'lacy pattern.' On follow-up (41.4 +/- 6.6 days after admission), STIR and contrast-enhanced T1-weighted images depicted heterogeneous high signal and heterogeneous enhancement, respectively, at the innermost part of the vastus medialis, whereas x-rays revealed a calcified mass in the same position. Overall, positive MRI findings appeared simultaneously with clinical signs (1.4 +/- 1.2 days following clinical diagnosis) whereas x-ray diagnosis was evident at 23 +/- 4.3 days (p = 0.002). CONCLUSION: MRI of the knee performed on clinical suspicion shows a distinct imaging pattern confirming the diagnosis of HO earlier than other methods. MRI diagnosis may have implications for early intervention in the development of HO.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primary10.1186/cc5083-
heal.identifier.secondaryhttp://www.ncbi.nlm.nih.gov/pubmed/17074077-
heal.identifier.secondaryhttp://ccforum.com/content/pdf/cc5083.pdf-
heal.journalNameCrit Careen
heal.journalTypepeer-reviewed-
heal.languageen-
heal.publicationDate2006-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών Υγείας. Τμήμα Ιατρικήςel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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