Clin Should Elbow.  2016 Sep;19(3):168-171. 10.5397/cise.2016.19.3.168.

Acromion Fracture after Hook Plate Fixation for Distal Clavicle Injury: A Report of 2 Cases

  • 1Department of Orthopaedic Surgery, Dongguk University College of Medicine, Gyeongju, Korea.


Fractures at the lateral end of the clavicle inevitably require surgical treatment as there is high potential for delayed union or nonunion. Acromioclavicular dislocation also requires stable and solid fixation for healing, and surgical treatment is recommended for the maintenance of joint function. The hook plate maintains the biomechanics of the acromioclavicular joint, enabling early range of motion. Therefore, for the past 10 years, the hook plate has been widely used in distal clavicle fractures and acromioclavicular joint injuries. However, the hook plate is associated with several complications, such as proximal clavicle fractures, widening of the hook hole, rotator cuff tear, subacromial impingement, and often acromial fractures. We report on two unusual cases of acromion fracture after hook plate fixation in patients with distal clavicle fracture and acromioclavicular dislocation alongside a literature review.


Acromion; Clavicle; Hook plate; Osteolysis
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