Optional medical device diagnostics – depending on the results of the history, physical examination, laboratory diagnostics, and obligatory medical device diagnostics – for differential diagnostic clarification.
- X-rays of the ankle joint
- Computed tomography (CT; sectional imaging procedure (X-ray images taken from different directions with computer-based evaluation), particularly well suited for visualizing bony injuries) of the ankle joint
- Magnetic resonance imaging(MRI; computer-assisted cross-sectional imaging method (using magnetic fields, i.e., without X-rays); particularly well suited for imaging soft tissue injuries) of the ankle joint
- Sonography (ultrasound) of the ankle joint as a dynamic examination, i.e. while with one hand the transducer is guided, the examiner with the other presses the tibia down – to visualize ligament tear and extent of instability. [if calcaneus and talus advance ≥ 2 mm or more in the process → ligaments overstretched and joint not adequately stabilized].
