What is the role of imaging studies in the diagnosis of palmar midcarpal instability (PMCI)?

Updated: Nov 22, 2019
  • Author: David M Lichtman, MD; Chief Editor: Harris Gellman, MD  more...
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Answer

Answer

Because PMCI is a dynamic disorder, findings from plain radiography are often unremarkable . Videofluoroscopy is the imaging study of choice. Both PA and lateral projections should be taken as the patient moves the wrist from radial to ulnar deviation in an attempt to reproduce the clunk. In addition, arthroscopy can enable the surgeon to definitively exclude any other lesion, particularly proximal low ligament tears. The role of MRI in the evaluation of PMCI has not yet been defined.


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