![USMLE AID on Twitter: "Posterior dislocation of shoulder on XRay -Light bulb sign -Trough line sign -Rim sign http://t.co/YBR3AWL7rB #USMLE http://t.co/BOVvhHYpPx" / Twitter USMLE AID on Twitter: "Posterior dislocation of shoulder on XRay -Light bulb sign -Trough line sign -Rim sign http://t.co/YBR3AWL7rB #USMLE http://t.co/BOVvhHYpPx" / Twitter](https://pbs.twimg.com/media/Bq8Rw4aCUAIyTEB.png:large)
USMLE AID on Twitter: "Posterior dislocation of shoulder on XRay -Light bulb sign -Trough line sign -Rim sign http://t.co/YBR3AWL7rB #USMLE http://t.co/BOVvhHYpPx" / Twitter
![Missed posterior shoulder fracture dislocations: a new protocol from a London major trauma centre | BMJ Open Quality Missed posterior shoulder fracture dislocations: a new protocol from a London major trauma centre | BMJ Open Quality](https://bmjopenquality.bmj.com/content/bmjqir/9/1/e000550/F1.large.jpg)
Missed posterior shoulder fracture dislocations: a new protocol from a London major trauma centre | BMJ Open Quality
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emDOCs.net – Emergency Medicine EducationEM@3AM: Posterior Shoulder Dislocation - emDOCs.net - Emergency Medicine Education
Medical Addicts - Light bulb sign:: Humerus forced into internal rotation --> posterior dislocation of shoulder. | Facebook
![Radiopaedia.org on Twitter: "Q: Light bulb appearance to humeral head after motor vehicle accident. Diagnosis? ANSWER: https://t.co/ZEQwZhGqRk #FOAMrad #FOAMed https://t.co/wFED0DKsK3" / Twitter Radiopaedia.org on Twitter: "Q: Light bulb appearance to humeral head after motor vehicle accident. Diagnosis? ANSWER: https://t.co/ZEQwZhGqRk #FOAMrad #FOAMed https://t.co/wFED0DKsK3" / Twitter](https://pbs.twimg.com/media/Ey6x91lVUAUaWLa.jpg)