Comparison of sonography and magnetic resonance imaging for spring ligament abnormalities: preliminary study.
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.
Harish
Srinivasan
S
Department of Diagnostic Imaging, St Joseph's Healthcare, Hamilton, ON L8N 4A6, Canada. sriniharish@gmail.com
Kumbhare
Dinesh
D
O'Neill
John
J
Popowich
Terry
T
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*