Background: Musculoskeletal ultrasound is an established diagnostic
technique for the assessment of tendon injuries. The purpose of the present
study was to determine whether ultrasound is effective for evaluating peroneal
tendon injuries, with surgical findings used as the standard of reference.
Methods: Fifty-eight patients with a suspected peroneal tendon
injury were prospectively evaluated with use of dynamic ultrasound.
Twenty-five patients were found to have peroneal tendon tears and were managed
operatively. Five patients with normal peroneal tendons on ultrasound
examination also were managed operatively for other reasons and are included
in the series as the peroneal tendons were inspected at the time of the
procedure. Ultrasound and surgical criteria were used to grade the peroneal
tendons on a scale from grade 0 (normal tendon) to grade III (tendon
Results: Of the sixty tendons that were evaluated operatively,
twenty-five were found to be torn. The sensitivity, specificity, and accuracy
of ultrasonography were 100%, 85%, and 90%, respectively.
Conclusions: The use of dynamic ultrasound is effective for
determining the presence or absence of a peroneal tendon tear and should be
considered a first-line diagnostic tool.
Level of Evidence: Diagnostic Level III. See Instructions
to Authors for a complete description of levels of evidence.