CTICasesPosterior Shoulder Dislocation with Reverse Bankart and Humeral Fracture
Imaging findings
Initial portable chest radiograph displays abnormal positioning of the right upper extremity, which is internally rotated, but the dislocation itself is difficult to appreciate. Follow-up CT scan confirms a posterior dislocation of the right humeral head with a reverse Bankart lesion (posterior glenoid rim fracture), a reverse Hill-Sachs lesion, and an associated fracture of the proximal humeral shaft.
Key takeaways
Posterior shoulder dislocations are frequently missed on initial anteroposterior radiographs, with up to 50% overlooked initially. Clues on radiographs include the 'lightbulb sign' of internal rotation of the humeral head. CT imaging is highly effective for characterizing associated osseous injuries such as reverse Bankart and reverse Hill-Sachs lesions.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Multiple Elastofibromas (including Elastofibroma Dorsi)Neoplastic
- Coal Worker's PneumoconiosisExposure
- Intrapericardial LipomaNeoplastic
- Radiation Pneumonitis post-SABRILD
- Transient Diaphragmatic Paralysis Secondary to Interscalene BlockIatrogenic
- Massive Pulmonary Embolism Mimicking Hilar AdenopathyVascular
- Pulmonary Infarction Secondary to Tumor Vessel EncasementNeoplastic
- Embolized Fractured Thrombolysis Catheter FragmentIatrogenic
See all cases from January 29, 2021 →