WBR1492
| Author | PageAuthor::William J Gibson |
|---|---|
| Exam Type | ExamType::Surgery Shelf |
| Main Category | |
| Sub Category | |
| Prompt | [[Prompt::A 24 year old man presents to the emergency room after his car rear-ended another at approximately 15 mph. He was driving back after pitching at his baseball game when the crash occurred, but he cannot remember the crash itself. Physical exam reveals an internally rotated shoulder, with positive Jerk test, consistent with posterior shoulder dislocation. What is the most likely cause of this patient's shoulder injury?]] |
| Answer A | AnswerA::Injury from throwing the baseball |
| Answer A Explanation | [[AnswerAExp::Throwing injuries place large amounts of stress on the posterior aspects of the should. Throwing most often injures the muscles of the rotator cuff and would result in an anterior shoulder dislocation rather than a posterior shoulder dislocation.]] |
| Answer B | AnswerB::Whiplash |
| Answer B Explanation | AnswerBExp::While whiplash is a common injury in motor vehicle accidents, whiplash would not be responsible for a posterior surgical dislocation. Whiplash would typically result in injuries to the cervical spine rather than the shoulder. |
| Answer C | AnswerC::Airbag injury |
| Answer C Explanation | AnswerCExp::Airbag injuries to the upper limb most frequently affect the forearm. |
| Answer D | AnswerD::Seatbelt injury |
| Answer D Explanation | AnswerDExp:: |
| Answer E | AnswerE::Seizure |
| Answer E Explanation | AnswerEExp:: |
| Right Answer | RightAnswer::E |
| Explanation | [[Explanation::This patient most likely suffered a posterior shoulder dislocation as a result of his seizure. Posterior shoulder dislocations are rare. In most shoulder dislocations, the humerus is displaced anteriorly. Educational Objective: A common cause of posterior shoulder dislocation is seizures. |
| Approved | Approved::Yes |
| Keyword | |
| Linked Question | Linked:: |
| Order in Linked Questions | LinkedOrder:: |