ABSTRACT
BACKGROUND Inferior shoulder dislocation is a rare type of glenohumeral joint dislocation. A serious complication to shoulder dislocation is axillary artery injury, which should be taken into consideration early to avoid potentially permanent damage. Literature on artery injury following inferior shoulder dislocation is sparse. CASE REPORT We report the case of a 71-year-old man with a traumatic inferior shoulder dislocation due to a fall. The patient had a medical history of stroke, and thus had a daily intake of 10 mg Warfarin. Previously, he had reported 2 anterior shoulder dislocations. The shoulder reduction was conducted under general anaesthesia after reduction with intravenous morphine sedation. Six hours after reduction, the patient showed signs of hemodynamic instability and a CT scan with contrast showed a suspected axillary artery rupture with a large hematoma in the right axilla. The artery rupture was confirmed with an arteriogram. The patient was successfully treated with an endovascular stent. After 3 months, the patient had normal neurovascular status in the right upper extremity and was continuing rehabilitation of the shoulder. CONCLUSIONS This case emphasizes the importance of proper recognition and awareness of artery injury after inferior shoulder dislocation. The symptoms of artery rupture after inferior shoulder dislocation can be immediate or have a late onset. The diagnostic modalities of CT scan with contrast or arteriogram should be performed with a low threshold of suspicion after reduction. With symptoms such as enlarging hematoma in the axilla, diminished radial and ulnar pulse, sudden pain from the axilla, or signs of hemodynamic instability after reduction, diagnostic modalities should be considered.
