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<meta name="DC.Description" content="Nineteen abnormal temporomandibular joints (TMJs) imaged with high-field-strength surface-coil MR are presented to illustrate specific changes associated with disk derangement, trauma, and previous surgery. Cases were selected from a series of 248 TMJ MR studies in 144 patients (9–68 years old, 130 females and 14 males) performed during a 5-month period. Surgical findings were available for correlation in 44 of the 248 joints studied. Increased signal caused by myxoid degeneration within the degenerating meniscus was seen, as were pathologic changes including atrophy, fibrosis, and contracture of masticatory muscles occurring with internal degrangements. Advantages and limitations of MR are discussed with reference to arthrography and videofluoroscopy. High-resolution and partial-flip-angle images of a normal joint are provided for comparison.

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<meta name="og-description" property="og:description" content="Nineteen abnormal temporomandibular joints (TMJs) imaged with high-field-strength surface-coil MR are presented to illustrate specific changes associated with disk derangement, trauma, and previous surgery. Cases were selected from a series of 248 TMJ MR studies in 144 patients (9–68 years old, 130 females and 14 males) performed during a 5-month period. Surgical findings were available for correlation in 44 of the 248 joints studied. Increased signal caused by myxoid degeneration within the degenerating meniscus was seen, as were pathologic changes including atrophy, fibrosis, and contracture of masticatory muscles occurring with internal degrangements. Advantages and limitations of MR are discussed with reference to arthrography and videofluoroscopy. High-resolution and partial-flip-angle images of a normal joint are provided for comparison.

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      <h1 class="highwire-cite-title" id="page-title">Temporomandibular Joint: MR Imaging of Internal Derangements and Postoperative Changes</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">Kurt P. Schellhas</span>, <span class="highwire-citation-author" data-delta="1">Clyde H. Wilkes</span>, <span class="highwire-citation-author" data-delta="2">Hollis M. Fritts</span>, <span class="highwire-citation-author" data-delta="3">Mark R. Omlie</span>, <span class="highwire-citation-author" data-delta="4">Kenneth B. Heithoff</span> and <span class="highwire-citation-author" data-delta="5">Jeffrey A. Jahn</span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">November 1987,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">8 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(6) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1093-1101; </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-13511--6882214933" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">Kurt P. Schellhas </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>1</span>Center for Diagnostic Imaging, 5775 Wayzata Blvd., Suite 190, SI. Louis Park, MN 55416. Address reprint requests to K. P. 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<p id="p-1">Nineteen abnormal temporomandibular joints (TMJs) imaged with high-field-strength surface-coil MR are presented to illustrate specific changes associated with disk derangement, trauma, and previous surgery. Cases were selected from a series of 248 TMJ MR studies in 144 patients (9–68 years old, 130 females and 14 males) performed during a 5-month period. Surgical findings were available for correlation in 44 of the 248 joints studied. Increased signal caused by myxoid degeneration within the degenerating meniscus was seen, as were pathologic changes including atrophy, fibrosis, and contracture of masticatory muscles occurring with internal degrangements. Advantages and limitations of MR are discussed with reference to arthrography and videofluoroscopy. High-resolution and partial-flip-angle images of a normal joint are provided for comparison.</p>
<p id="p-2">In most clinical circumstances, MR is the procedure of choice when examining the TMJ, because it provides contrast resolution of soft-tissue structures superior to that of conventional imaging techniques.</p>
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      <div class="highwire-cite-title">Temporomandibular Joint: MR Imaging of Internal Derangements and Postoperative Changes</div>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">Kurt P.</span> <span class="nlm-surname">Schellhas</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">Clyde H.</span> <span class="nlm-surname">Wilkes</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">Hollis M.</span> <span class="nlm-surname">Fritts</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">Mark R.</span> <span class="nlm-surname">Omlie</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">Kenneth B.</span> <span class="nlm-surname">Heithoff</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">Jeffrey A.</span> <span class="nlm-surname">Jahn</span></span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">Nov 1987, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">8 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(6) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1093-1101; </span></div>
  
  
  
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