Bilateral posterior fracture dislocation of proximal humerus due to a simple fall: A case report

Background: Bilateral posteriorfracture dislocation is a rare injury when compared to unilateral anterior dislocation. It was first described in 1971 by Shaw and most of the reported cases are secondary to seizures. Case presentation: We present a rare case of a 72 years old man who presented to the emergency department with bilateral posterior fracture dislocation of proximal humerus following a simple fall with no previous history of any seizures, CVA, previous falls or trauma to the shoulder, his ECG holter monitor showed intermittent profound sinus bradycardia that was thought to be the cause of his syncope prior the incidence. Patient was treated with bilateral shoulder hemi arthroplasty , a pacemaker was inserted andthe patients was discharged in a stable condition.Follow up after 4 weeks post operatively revealed gradual improvement in range of motion with no complications. Conclusion: Bilateral posterior dislocation of the proximal humerus complicating syncope are rare. Profound sinus bradycardia is the likely cause for the fracture dislocations in our patient and this had not been reported before.