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Dislocation of posterior tibial tendon

D P Loncarich¹, M Clapper

¹Naval Medical Center San Diego, California 92134-5000, USA.

Foot & Ankle International

|January 1, 1999

Summary

Traumatic posterior tibial tendon dislocation is rare. Magnetic resonance imaging aided diagnosis, revealing a new pseudoretinaculum that facilitated successful surgical repair and good outcomes.

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Area of Science:

Orthopedic Surgery
Musculoskeletal Imaging
Sports Medicine

Background:

Posterior tibial tendon dislocation is an uncommon injury, rarely documented in medical literature.
This case highlights a traumatic instance of posterior tibial tendon dislocation, emphasizing diagnostic challenges.

Observation:

Diagnosis was significantly delayed, necessitating advanced imaging techniques.
Magnetic resonance imaging (MRI) proved crucial in accurately identifying the tendon's displaced location.
Surgical exploration revealed no inherent anatomical abnormalities predisposing to dislocation.

Findings:

A novel pseudoretinaculum had formed, effectively preventing further subluxation or dislocation.
Surgical intervention involved relocating the posterior tibial tendon and repairing the newly formed retinaculum.

Implications:

This case expands understanding of posterior tibial tendon dislocation mechanisms and diagnosis.
Effective management involves accurate imaging and surgical reconstruction, leading to favorable patient outcomes.
Highlights the potential for adaptive tissue responses, like pseudoretinaculum formation, in managing tendon injuries.

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