Abstract
Isolated posterior tibial tendon dislocation is a rare condition. Diagnosis can be
challenging, especially in the acute clinical setting. Predisposing factors include
shallow posterior tibial tendon groove and tear of the flexor retinaculum. We report
the case of traumatic subluxation of the posterior tibial tendon, illustrating imaging
findings and surgical technique. Posterior tibial tendon dislocation was detected
using dynamic ultrasound, while magnetic resonance was essential for a comprehensive
evaluation that included underlying predisposing anatomic abnormalities and associated
pathologic conditions. Conservative treatment is often unsuccessful thus surgical
approach was needed. Under ampliscopic guidance, a bone tunnel was created behind
the retromalleolar groove. The posterior tibial tendon was located into the new groove
and the retinaculum was re-attached and tightened by anchors and absorbable sutures
at the anterior margin of the sulcus. At 12-month follow-up, the patient did not complain
any residual pain and he was able to perform normal daily activities without any limitations
and with no further tendon dislocations.
Level of Clinical Evidence
Keywords
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Article info
Publication history
Published online: September 21, 2021
Footnotes
Financial Disclosure: None reported.
Conflict of Interest: None reported.
Identification
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© 2021 by the American College of Foot and Ankle Surgeons. All rights reserved.
