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European Radiology

, Volume 16, Issue 12, pp 2661–2669 | Cite as

Sonographic and MRI evaluation of the plantar plate: a prospective study

  • Julie GreggEmail author
  • Morry Silberstein
  • Timothy Schneider
  • Paul Marks
Musculoskeletal

Abstract

The purpose of this study was to establish the accuracy of ultrasound in the examination of the plantar plate by comparing it with MRI, or if available, surgical findings. The lesser metatarsophalangeal joint plantar plates of 40 symptomatic and 40 asymptomatic feet (160 asymptomatic and 160 symptomatic plantar plates) were examined with ultrasound and MRI. Patients treated with surgery were chosen on a clinical basis and provided surgical correlation for the imaging techniques. Symptomatic patients with metatatarsalgia and suspected metatarsophalangeal joint instability were referred by an orthopedic foot specialist; asymptomatic feet were obtained either through examination of the contralateral foot of the symptomatic patients or volunteers. Ultrasound detected 75/160 and 139/160 plantar plates torn in the asymptomatic and symptomatic groups, respectively. MRI detected 56/160 and 142/160 tears in the symptomatic and asymptomatic groups, respectively. The sensitivity of MRI and ultrasound with surgical correlation was calculated to be 87 and 96%, respectively, with poor specificity. Ultrasound correlates moderately with MRI in the evaluation of the plantar plate. Surgical correlations, although limited (n=10), indicate ultrasound is superior to MRI with more accurate detection of tears.

Keywords

Plantar plate Fibrocartilage Metatarsophalangeal joint Metatarsalgia Instability 

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Julie Gregg
    • 1
    Email author
  • Morry Silberstein
    • 2
  • Timothy Schneider
    • 3
  • Paul Marks
    • 4
  1. 1.Mayne Health Diagnostic ImagingVaucluse HospitalBrunswickAustralia
  2. 2.Monash Medical SchoolThe Alfred HospitalPrahranAustralia
  3. 3.Melbourne Orthopaedic GroupWindsorAustralia
  4. 4.Mayne Health Diagnostic ImagingThe Avenue HospitalWindsorAustralia

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