title: Comparison of sonography and magnetic resonance imaging for spring ligament abnormalities: preliminary study.
abstract: OBJECTIVE
  The purpose of this study was to determine whether sonography is as accurate as magnetic resonance (MR) imaging for depicting abnormalities of the spring ligament in patients with symptomatic posterior tibial tendon (PTT) dysfunction.
  
  
  METHODS
  Sixteen patients (18 ligaments) with symptomatic PTT dysfunction were prospectively evaluated with sonography and MR imaging.
  
  
  RESULTS
  Magnetic resonance imaging showed spring ligament tears in 8 of 18 feet, including 6 incomplete tears and 2 complete tears. Sonography showed spring ligament tears in 7 of 18 feet, including 6 incomplete tears and 1 complete tear. The findings of sonography and MR imaging were concordant in 17 of 18 feet (94%). Six of the 8 spring ligament tears on MR imaging were associated with posterior tibial tendinosis or tears.
  
  
  CONCLUSIONS
  Sonography is an effective imaging option in assessing spring ligament abnormalities in patients with symptomatic PTT dysfunction.
authors.affiliation: Department of Diagnostic Imaging, St Joseph's Healthcare, Hamilton, ON L8N 4A6, Canada. sriniharish@gmail.com
authors.forename: Srinivasan
authors.initials: S
authors.lastname: Harish
authors.forename: Dinesh
authors.initials: D
authors.lastname: Kumbhare
authors.forename: John
authors.initials: J
authors.lastname: O'Neill
authors.forename: Terry
authors.initials: T
authors.lastname: Popowich
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005534:Foot Diseases / Q000175:diagnosis*; D018409:Foot Injuries / Q000175:diagnosis*; D006801:Humans; D008022:Ligaments / Q000000981:diagnostic imaging* / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014463:Ultrasonography / Q000379:methods*