Arthroscopic Treatment of Isolated Fracture of the Posterolateral Angle of the Acromion

Published:November 29, 2006DOI:


      Isolated fractures of the acromion are rare. Fracture avulsion of the posterolateral part of the acromion is even more rare. In 1996, a classification of Types I, II, and III was proposed, along with a recommendation for surgical treatment with open reduction and internal fixation for type III fracture. This report describes arthroscopic treatment provided according to a specialized technique that can be used for displaced avulsion fracture of the posterolateral angle of the acromion with reduction of the posterior subacromial space. This injury occurred in a 43-year-old recreational cyclist who injured his right shoulder through a direct blow. The fracture was exposed after the hematoma and the periosteum from the anterolateral portal had been debrided with a motorized shaver. The fracture was reduced by percutaneus pinning, and the position of the fragments was corrected and stabilized with the use of 2 pins—1 anterior and 1 posterior. In the medium part of the lateral fragment, a pin was introduced for implant of the titanium cannulated screw. After 3 weeks, the pins were removed; the screw was taken out after 2 months. Radiographs at 1 year after surgery indicated that bone union had occurred; further physical examination revealed a complete range of motion. The patient was able to return to cycling with no additional problems.

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