[Relevance of proton spin tomographic meniscus diagnosis in correlation with arthroscopy].

Clicks: 345
ID: 78065
1994
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Abstract
Arthroscopy of the menisci is considered the gold standard by which all noninvasive imaging procedures of the knee are measured. In a prospective study we evaluated the use of MRI in 50 patients in whom a disorder of the meniscus was suspected clinically; this was followed by an arthroscopic examination by an experienced arthroscopist. The MR studies were performed after clinical evaluation and were interpreted by an experienced radiologist, who had no knowledge of the clinical findings. The accuracy of the diagnosis from MRI was 78% for the medial meniscus (sensitivity 79% and specificity 78%) and 94% for the lateral meniscus (sensitivity 50% and specificity 98%). The average age of the patients was 34 years, with a range of 3-73 years. The imaging studies revealed 9 false-positive tests and suggested that the meniscus was either degenerated or torn in the horizontal plane. In all 9 menisci the abnormal MR imaging signal was limited to the posterior horns. The positive predictive value was 59% and the negative predictive value was 94%, representing a moderate level of diagnostic certainty both in patients who had a positive result and in those who had a negative result. The high predictive negative value of MRI indicates that a negative MRI is quite reliable for meniscal lesions. The problem areas in MR imaging are the popliteal tendon sheath and the transverse ligament. This ligament is seen in association with a large branch of the lateral inferior geniculate artery and may be mistaken for a grade 3 signal intensity in the anterior horn of the lateral meniscus.
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imhoff1994relevanceder Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Imhoff, A;Buess, E;Hodler, J;Schreiber, A;
Journal Der Orthopäde
Year 1994
DOI
DOI not found
URL URL not found
Keywords
prognosis osteoarthritis knee arthroscopy arthroplasty artroplastia artroscopia artrosis pronóstico rodilla

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