2025, Vol. 7, Issue 2, Part B

Simultaneous dislocation of the sternoclavicular joint and acromioclavicular joint are very rare injuries. The authors present a case study of a 41-year-old male patient who presented a complete posterior dislocation of the sternoclavicular joint and acromioclavicular joint dislocation on the opposite side. As far as we know, this is the first case reported in the literature. The purpose of this uncommon case report is to describe this association and highlight the related treatment issues. We report a case involving a 41-year-old right-handed male plumber was involved in a work accident. Patient reported bilateral shoulder pain, but no dyspnea, hemoptysis, or dysphagia. He had abrasions on the front of his right acromioclavicular joint, and there was a palpable prominence with pain and limited mobility in the piano key area. At the left sterno-clavicular joint, there was a depression with pain. Radiographs revealed right acromioclavicular joint dislocation and signs of left sternoclavicular joint displacement. A Computed tomography scanner confirmed posterior dislocation of the sterno-clavicular joint and revealed no mediastinal compression. Acromio-clavicular dislocation must closely look like a Rockwood type 2 classification. For the right acromio-clavicular dislocation, orthopedic treatment consisting of shoulder strapping was performed. For the left dislocation of the sterno-clavicular joint we performed a meniscectomy and introduced two 1.6 mm Kirschner wires from the clavicle to the sternum. This injury is extremely rare. The patient underwent successful hybrid treatment, which included open sterno-clavicular joint reduction and orthopaedic treatment of the acromio-clavicular joint. He returned to his activities within eight weeks of recovery.