Ligamentous Line Treatment for Distal Clavicle Fractures with Accompanying Acromiocla vicular Joint Dislocation: A Case Report and Review of Acromioclavicular Joint Dislocation

Background Distal clavicle fractures combined with acromioclavicular joint(ACJ) dislocation are high-energy injuries with a high rate of misdiagnosis, which can easily lead to shoulder joint dysfunction. The mechanism of injury involves the combined effects of axial compression and shear forces, resulting in the loss of stability of both the distal clavicle fracture fragment and the ACJ. This case report highlights the notable features of this uncommon injury and provides a detailed overview of treatment options along the lines of bio anatomical repair and reconstruction. Case presentation A 50-year-old man suffered a fracture of the distal end of the clavicle on the same side and a shoulder-clavicle joint dislocation due to a bicycle accident. Due to the patient's financial circumstances, we designed a surgical procedure involving open reduction and internal fixation of the clavicle fracture using ligament sutures, as well as ligament suture fixation to restore the ACJ. One-year follow-up showed excellent outcomes in terms of shoulder joint range of motion, pain, and shoulder joint function scores. This case study aims to provide an effective and economical treatment method for clavicle fractures combined with ACJ dislocation. Conclusion The surgical technique described has achieved excellent radiographic and clinical results, providing patients with cost-effective treatment while avoiding secondary surgery to remove internal fixation devices.