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Insights into Imaging
Fig. 10 | Insights into Imaging

Fig. 10

From: Overuse-related instability of the elbow: the role of CT-arthrography

Fig. 10

Posterolateral rotatory instability (PLRI) at dynamic US examination. The probe is placed in an axial approach between the lateral epicondyle (LE) and the olecranon (O), as the humero-ulnar joint is visualized. While applying a posterolateral rotatory stress, widening of the humero-ulnar joint is determined (white calipers): a widening greater than 4 mm, from resting (a) to stress (b) conditions, is considered indicative of PLRI

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