European Journal of Trauma
Ab stractBilateral posterior fracture-dislocation of shoulders (BPFDS) is a rare injury and is most commonly sustained after epileptic seizure, extreme trauma or electrocution. A unique case of isolated BPFDS as a result of a fall from a bicycle in a healthy young man is presented. Unilateral posterior fracture-dislocation of the shoulder as a result of trauma is rare and such an injury occurring bilaterally is yet to be reported in the literature. BPFDS is associated with rotator cuff tears, reverse Hill-Sachs lesion and posterior labrum injuries. BPFDS if not treated promptly can lead to avascular necrosis of the head of humerus. Diagnosis of BPFDS is difficult and if there is any suspicion on the plain films, CT or MRI scans should be performed to confirm the diagnosis and define any associated injuries.
Case StudyA 34-year-old man presented to Accident & Emergency after falling from his bicycle whilst traveling downhill, practicing for a race. The exact mechanism of the fall and the position on landing cannot be remembered despite having remained conscious throughout. After the accident, the patient managed to carry his bike to the road. The only symptom that the patient complained of was severe pain in both shoulders. He was otherwise fit and well with no past medical history of epilepsy or previous shoulder injury. On examination, the normal contours of both shoulders were lost and the arms were held adducted. He was unable to move either arm at the shoulder because of pain. Neurologic examination demonstrated the axillary nerves and all other branches of the brachial plexus to be intact. A full secondary survey did not reveal any other injuries. Anteroposterior (AP) X-ray of the right shoulder ( Figure 1a) showed an undisplaced fracture of the surgical neck of humerus extending into the metaphysis distally, and the axillary view (Figure 1b) demonstrated posterior dislocation of the humeral head. AP view of left shoulder (Figure 2a) showed deformity of the humeral head, whereas the axillary view (Figure 2b) demonstrated posterior dislocation of the shoulder with a displaced surgical neck and metaphyseal humeral fracture.His right shoulder was manipulated under anesthesia ( Figure 3). The shoulder was found to be stable on screening and hence no further intervention was performed. However, his left shoulder was found to be particularly unstable and hence the injury was treated with an open reduction and cancellous screw fixation ( Figure 4). Postoperatively, his right shoulder was immobilized in a full-arm plaster held in slight abduction and external rotation attached to a thoracoabdominal spica. The left shoulder was supported in a collar and cuff.There were no immediate postoperative complications and the patient went on to complete a full course of physiotherapy. At 3-month outpatient follow-up, he had full range of movement in the right shoulder, and some restriction of abduction and external rotation in the left shoulder. At 9-month follow-up, the left shoulder had regained ...