Evolution of Intrameniscal Signal-Intensity Alterations Detected on MRI Over 24 Months in Patients With Traumatic Anterior Cruciate Ligament Tear

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dc.citation.issue2
dc.citation.volume208
dc.contributor.authorGuimaraes, Julio Brandao [UNIFESP]
dc.contributor.authorFacchetti, Luca
dc.contributor.authorSchwaiger, Benedikt J.
dc.contributor.authorGersing, Alexandra S.
dc.contributor.authorMajumdar, Sharmila
dc.contributor.authorMa, Benjamin C.
dc.contributor.authorLi, Xiaojuan
dc.contributor.authorLink, Thomas M.
dc.coverageReston
dc.date.accessioned2020-07-17T14:03:11Z
dc.date.available2020-07-17T14:03:11Z
dc.date.issued2017
dc.description.abstractOBJECTIVE. The objective of our study was to assess the prevalence and evolution of intrameniscal signal-intensity alteration in subjects with an anterior cruciate ligament (ACL) tear over 24 months and compare clinical outcome and changes of cartilage between subjects with and those without this meniscal abnormality. MATERIALS AND METHODS. Fifty-seven subjects with an ACL tear were screened for intrameniscal signal-intensity alteration. Morphologic and compositional MRI was performed before ACL reconstruction and 12 and 24 months after ACL reconstruction. Twelve subjects with an intrameniscal signal-intensity alteration and 12 subjects without any meniscal abnormality on MRI were identified. Clinical outcome was measured using the Knee Injury and Osteoarthritis Outcome Score (KOOS), and T1 rho and T2 maps of the cartilage were obtained. RESULTS. In 10 of 12 subjects (83%) the meniscal signal-intensity abnormality identified on baseline MRI was located at the posterior horn of the medial meniscus. None of these subjects presented with a meniscal tear over 24 months of follow-up. At 12 months after the ACL tear, the intrameniscal signal-intensity alteration detected on baseline MRI had completely resolved in seven of 12 subjects (58%), showed a signal-intensity decrease in four (33%), and remained stable in one subject (8%). Of the 10 subjects who underwent MRI at 24 months, the meniscal signal-intensity alteration had completely resolved in eight (80%), and the signal intensity had decreased in the other two subjects. Changes in the KOOS and cartilage T1. and T2 values from baseline and 24 months did not differ significantly between subjects with and those without intrameniscal signal-intensity alteration (p > 0.05). CONCLUSION. High intrameniscal signal-intensity alterations are a common finding in subjects with an ACL tear and have a benign course over 24 months after surgical repair of the ACL tear.en
dc.description.affiliationUniv Calif San Francisco, Dept Radiol & Biomed Imaging, 185 Berry St,Ste 350, San Francisco, CA 94158 USA
dc.description.affiliationUniv Fed Sao Paulo, Dept Radiol, Sao Paulo, Brazil
dc.description.affiliationUniv Brescia, Dept Radiol, Brescia, Italy
dc.description.affiliationUniv Calif San Francisco, Dept Orthoped Surg, San Francisco, CA 94143 USA
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Radiol, Sao Paulo, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipNIH/NIAMS
dc.description.sponsorshipIDNIH/NIAMS: P50 AR060752
dc.format.extent386-392
dc.identifierhttp://dx.doi.org/10.2214/AJR.16.16625
dc.identifier.citationAmerican Journal Of Roentgenology. Reston, v. 208, n. 2, p. 386-392, 2017.
dc.identifier.doi10.2214/AJR.16.16625
dc.identifier.issn0361-803X
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/55216
dc.identifier.wosWOS:000392478800031
dc.language.isoeng
dc.publisherAmer Roentgen Ray Soc
dc.relation.ispartofAmerican Journal Of Roentgenology
dc.rightsAcesso aberto
dc.subjectanterior cruciate ligament (ACL) tearen
dc.subjectmeniscal contusionen
dc.subjectMRIen
dc.titleEvolution of Intrameniscal Signal-Intensity Alterations Detected on MRI Over 24 Months in Patients With Traumatic Anterior Cruciate Ligament Tearen
dc.typeArtigo
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