Comparison of preoperative MRI and intraoperative findings of posterior tibial tendon insufficiency.
BACKGROUND
The purpose of this study was to investigate the radiological and surgical correlation between preoperative magnetic resonance images (MRI) and the intraoperative findings in patients with acquired adult flatfoot.


RESULTS
The overall radiological-surgical correlation between preoperative MRI and the intraoperative findings for posterior tibial tendon insufficiency was only slight to fair in our patient's series. Comparing the most commonly used posterior tibial tendon classification systems, the classification of Rosenberg et al. and Kong et al. showed higher interobserver agreement than our modified classification system and the classification system of Conti et al.


CONCLUSIONS
Further prospective studies are needed to evaluate the importance of preoperative MRI before surgical repair of posterior tibial tendon dysfunction.
Department of Orthopedics, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, Austria.
Matthias
M
Braito
Department of Orthopedics, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, Austria.
Martina
M
Wöß
Department of Radiology, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, Austria.
Benjamin
B
Henninger
Department of Radiology, Medical University of Ulm, Albert-Einstein-Allee 7, Ulm, Germany.
Michael
M
Schocke
Department of Orthopedics, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, Austria.
Michael
M
Liebensteiner
Department of Experimental Orthopaedics, Medical University of Innsbruck, Innrain 36, Innsbruck, Austria.
Dennis
D
Huber
Department of Orthopedics, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, Austria.
Martin
M
Krismer
Department of Orthopedics, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, Austria.
Rainer
R
Biedermann
Acquired adult flatfoot deformity; Magnetic resonance imaging; Posterior tibial tendon insufficiency; Tibialis posterior tendon