Presentation
Medial foot pain with weak plantar flexion of the foot. No history of trauma.
Patient Data
Age: 50 years
Gender: Female
From the case:
Split tear of the tibialis posterior tendon
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- The distal most tibialis posterior tendon shows thickening and ill-definition with increased signal intensity eliciting intermediate T1 and hyperintense T2 / GRE signal intensity as well as split tear near its insertion in the navicular tuberosity.
- Associated subcutaneous tissue edema is seen at the medial aspect of the ankle.
- The calcaneo-navicular (spring) ligament appears ill-defined with increased signal intensity as well.
- The plantar fascia appears thickened with hypointense T1 and T2 signals. Bony plantar calcaneal spur is noted.
- Intact other tendons around the ankle.
- Normal collateral ligaments.
- Normal signal pattern of the examined bones.
- No significant joint effusion.
- No soft tissue mass lesion.
Case Discussion
- Split tear of the distal tibialis posterior tendon with tendinosis as well as associated mild subcutaneous edema of the medial ankle.
- Mild sprain of calcaneo-navicular (spring) ligament.
- Mild chronic plantar fasciitis with small bony plantar calcaneal spur.
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